From: Brian Warner <warner@lothar.com>
Date: Wed, 18 Feb 2009 22:42:34 +0000 (-0700)
Subject: test_system: split off checker tests to test_deepcheck.py, this file is too big
X-Git-Tag: allmydata-tahoe-1.4.0~192
X-Git-Url: https://git.rkrishnan.org/listings/pb1client.py?a=commitdiff_plain;h=b398a69f1468a82ca05c9ef6e31304438c6b95b5;p=tahoe-lafs%2Ftahoe-lafs.git

test_system: split off checker tests to test_deepcheck.py, this file is too big
---

diff --git a/src/allmydata/test/test_deepcheck.py b/src/allmydata/test/test_deepcheck.py
new file mode 100644
index 00000000..f8d4cfc4
--- /dev/null
+++ b/src/allmydata/test/test_deepcheck.py
@@ -0,0 +1,1157 @@
+
+import os, simplejson, urllib
+from cStringIO import StringIO
+from twisted.trial import unittest
+from twisted.internet import defer
+from twisted.internet import threads # CLI tests use deferToThread
+from allmydata.immutable import upload
+from allmydata.util import idlib
+from allmydata.util import base32
+from allmydata.scripts import runner
+from allmydata.interfaces import ICheckResults, ICheckAndRepairResults, \
+     IDeepCheckResults, IDeepCheckAndRepairResults
+from allmydata.monitor import Monitor, OperationCancelledError
+from twisted.web.client import getPage
+
+from allmydata.test.common import SystemTestMixin, ErrorMixin
+
+class MutableChecker(SystemTestMixin, unittest.TestCase, ErrorMixin):
+
+    def _run_cli(self, argv):
+        stdout, stderr = StringIO(), StringIO()
+        # this can only do synchronous operations
+        assert argv[0] == "debug"
+        runner.runner(argv, run_by_human=False, stdout=stdout, stderr=stderr)
+        return stdout.getvalue()
+
+    def test_good(self):
+        self.basedir = self.mktemp()
+        d = self.set_up_nodes()
+        CONTENTS = "a little bit of data"
+        d.addCallback(lambda res: self.clients[0].create_mutable_file(CONTENTS))
+        def _created(node):
+            self.node = node
+            si = self.node.get_storage_index()
+        d.addCallback(_created)
+        # now make sure the webapi verifier sees no problems
+        def _do_check(res):
+            url = (self.webish_url +
+                   "uri/%s" % urllib.quote(self.node.get_uri()) +
+                   "?t=check&verify=true")
+            return getPage(url, method="POST")
+        d.addCallback(_do_check)
+        def _got_results(out):
+            self.failUnless("<span>Healthy : Healthy</span>" in out, out)
+            self.failUnless("Recoverable Versions: 10*seq1-" in out, out)
+            self.failIf("Not Healthy!" in out, out)
+            self.failIf("Unhealthy" in out, out)
+            self.failIf("Corrupt Shares" in out, out)
+        d.addCallback(_got_results)
+        d.addErrback(self.explain_web_error)
+        return d
+
+    def test_corrupt(self):
+        self.basedir = self.mktemp()
+        d = self.set_up_nodes()
+        CONTENTS = "a little bit of data"
+        d.addCallback(lambda res: self.clients[0].create_mutable_file(CONTENTS))
+        def _created(node):
+            self.node = node
+            si = self.node.get_storage_index()
+            out = self._run_cli(["debug", "find-shares", base32.b2a(si),
+                                self.clients[1].basedir])
+            files = out.split("\n")
+            # corrupt one of them, using the CLI debug command
+            f = files[0]
+            shnum = os.path.basename(f)
+            nodeid = self.clients[1].nodeid
+            nodeid_prefix = idlib.shortnodeid_b2a(nodeid)
+            self.corrupt_shareid = "%s-sh%s" % (nodeid_prefix, shnum)
+            out = self._run_cli(["debug", "corrupt-share", files[0]])
+        d.addCallback(_created)
+        # now make sure the webapi verifier notices it
+        def _do_check(res):
+            url = (self.webish_url +
+                   "uri/%s" % urllib.quote(self.node.get_uri()) +
+                   "?t=check&verify=true")
+            return getPage(url, method="POST")
+        d.addCallback(_do_check)
+        def _got_results(out):
+            self.failUnless("Not Healthy!" in out, out)
+            self.failUnless("Unhealthy: best version has only 9 shares (encoding is 3-of-10)" in out, out)
+            self.failUnless("Corrupt Shares:" in out, out)
+        d.addCallback(_got_results)
+
+        # now make sure the webapi repairer can fix it
+        def _do_repair(res):
+            url = (self.webish_url +
+                   "uri/%s" % urllib.quote(self.node.get_uri()) +
+                   "?t=check&verify=true&repair=true")
+            return getPage(url, method="POST")
+        d.addCallback(_do_repair)
+        def _got_repair_results(out):
+            self.failUnless("<div>Repair successful</div>" in out, out)
+        d.addCallback(_got_repair_results)
+        d.addCallback(_do_check)
+        def _got_postrepair_results(out):
+            self.failIf("Not Healthy!" in out, out)
+            self.failUnless("Recoverable Versions: 10*seq" in out, out)
+        d.addCallback(_got_postrepair_results)
+        d.addErrback(self.explain_web_error)
+
+        return d
+
+    def test_delete_share(self):
+        self.basedir = self.mktemp()
+        d = self.set_up_nodes()
+        CONTENTS = "a little bit of data"
+        d.addCallback(lambda res: self.clients[0].create_mutable_file(CONTENTS))
+        def _created(node):
+            self.node = node
+            si = self.node.get_storage_index()
+            out = self._run_cli(["debug", "find-shares", base32.b2a(si),
+                                self.clients[1].basedir])
+            files = out.split("\n")
+            # corrupt one of them, using the CLI debug command
+            f = files[0]
+            shnum = os.path.basename(f)
+            nodeid = self.clients[1].nodeid
+            nodeid_prefix = idlib.shortnodeid_b2a(nodeid)
+            self.corrupt_shareid = "%s-sh%s" % (nodeid_prefix, shnum)
+            os.unlink(files[0])
+        d.addCallback(_created)
+        # now make sure the webapi checker notices it
+        def _do_check(res):
+            url = (self.webish_url +
+                   "uri/%s" % urllib.quote(self.node.get_uri()) +
+                   "?t=check&verify=false")
+            return getPage(url, method="POST")
+        d.addCallback(_do_check)
+        def _got_results(out):
+            self.failUnless("Not Healthy!" in out, out)
+            self.failUnless("Unhealthy: best version has only 9 shares (encoding is 3-of-10)" in out, out)
+            self.failIf("Corrupt Shares" in out, out)
+        d.addCallback(_got_results)
+
+        # now make sure the webapi repairer can fix it
+        def _do_repair(res):
+            url = (self.webish_url +
+                   "uri/%s" % urllib.quote(self.node.get_uri()) +
+                   "?t=check&verify=false&repair=true")
+            return getPage(url, method="POST")
+        d.addCallback(_do_repair)
+        def _got_repair_results(out):
+            self.failUnless("Repair successful" in out)
+        d.addCallback(_got_repair_results)
+        d.addCallback(_do_check)
+        def _got_postrepair_results(out):
+            self.failIf("Not Healthy!" in out, out)
+            self.failUnless("Recoverable Versions: 10*seq" in out)
+        d.addCallback(_got_postrepair_results)
+        d.addErrback(self.explain_web_error)
+
+        return d
+
+
+class DeepCheckBase(SystemTestMixin, ErrorMixin):
+
+    def web_json(self, n, **kwargs):
+        kwargs["output"] = "json"
+        d = self.web(n, "POST", **kwargs)
+        d.addCallback(self.decode_json)
+        return d
+
+    def decode_json(self, (s,url)):
+        try:
+            data = simplejson.loads(s)
+        except ValueError:
+            self.fail("%s: not JSON: '%s'" % (url, s))
+        return data
+
+    def parse_streamed_json(self, s):
+        for unit in s.split("\n"):
+            if not unit:
+                # stream should end with a newline, so split returns ""
+                continue
+            yield simplejson.loads(unit)
+
+    def web(self, n, method="GET", **kwargs):
+        # returns (data, url)
+        url = (self.webish_url + "uri/%s" % urllib.quote(n.get_uri())
+               + "?" + "&".join(["%s=%s" % (k,v) for (k,v) in kwargs.items()]))
+        d = getPage(url, method=method)
+        d.addCallback(lambda data: (data,url))
+        return d
+
+    def wait_for_operation(self, ignored, ophandle):
+        url = self.webish_url + "operations/" + ophandle
+        url += "?t=status&output=JSON"
+        d = getPage(url)
+        def _got(res):
+            try:
+                data = simplejson.loads(res)
+            except ValueError:
+                self.fail("%s: not JSON: '%s'" % (url, res))
+            if not data["finished"]:
+                d = self.stall(delay=1.0)
+                d.addCallback(self.wait_for_operation, ophandle)
+                return d
+            return data
+        d.addCallback(_got)
+        return d
+
+    def get_operation_results(self, ignored, ophandle, output=None):
+        url = self.webish_url + "operations/" + ophandle
+        url += "?t=status"
+        if output:
+            url += "&output=" + output
+        d = getPage(url)
+        def _got(res):
+            if output and output.lower() == "json":
+                try:
+                    return simplejson.loads(res)
+                except ValueError:
+                    self.fail("%s: not JSON: '%s'" % (url, res))
+            return res
+        d.addCallback(_got)
+        return d
+
+    def slow_web(self, n, output=None, **kwargs):
+        # use ophandle=
+        handle = base32.b2a(os.urandom(4))
+        d = self.web(n, "POST", ophandle=handle, **kwargs)
+        d.addCallback(self.wait_for_operation, handle)
+        d.addCallback(self.get_operation_results, handle, output=output)
+        return d
+
+
+class DeepCheckWebGood(DeepCheckBase, unittest.TestCase):
+    # construct a small directory tree (with one dir, one immutable file, one
+    # mutable file, one LIT file, and a loop), and then check/examine it in
+    # various ways.
+
+    def set_up_tree(self, ignored):
+        # 2.9s
+
+        # root
+        #   mutable
+        #   large
+        #   small
+        #   small2
+        #   loop -> root
+        c0 = self.clients[0]
+        d = c0.create_empty_dirnode()
+        def _created_root(n):
+            self.root = n
+            self.root_uri = n.get_uri()
+        d.addCallback(_created_root)
+        d.addCallback(lambda ign: c0.create_mutable_file("mutable file contents"))
+        d.addCallback(lambda n: self.root.set_node(u"mutable", n))
+        def _created_mutable(n):
+            self.mutable = n
+            self.mutable_uri = n.get_uri()
+        d.addCallback(_created_mutable)
+
+        large = upload.Data("Lots of data\n" * 1000, None)
+        d.addCallback(lambda ign: self.root.add_file(u"large", large))
+        def _created_large(n):
+            self.large = n
+            self.large_uri = n.get_uri()
+        d.addCallback(_created_large)
+
+        small = upload.Data("Small enough for a LIT", None)
+        d.addCallback(lambda ign: self.root.add_file(u"small", small))
+        def _created_small(n):
+            self.small = n
+            self.small_uri = n.get_uri()
+        d.addCallback(_created_small)
+
+        small2 = upload.Data("Small enough for a LIT too", None)
+        d.addCallback(lambda ign: self.root.add_file(u"small2", small2))
+        def _created_small2(n):
+            self.small2 = n
+            self.small2_uri = n.get_uri()
+        d.addCallback(_created_small2)
+
+        d.addCallback(lambda ign: self.root.set_node(u"loop", self.root))
+        return d
+
+    def check_is_healthy(self, cr, n, where, incomplete=False):
+        self.failUnless(ICheckResults.providedBy(cr), where)
+        self.failUnless(cr.is_healthy(), where)
+        self.failUnlessEqual(cr.get_storage_index(), n.get_storage_index(),
+                             where)
+        self.failUnlessEqual(cr.get_storage_index_string(),
+                             base32.b2a(n.get_storage_index()), where)
+        needs_rebalancing = bool( len(self.clients) < 10 )
+        if not incomplete:
+            self.failUnlessEqual(cr.needs_rebalancing(), needs_rebalancing, str((where, cr, cr.get_data())))
+        d = cr.get_data()
+        self.failUnlessEqual(d["count-shares-good"], 10, where)
+        self.failUnlessEqual(d["count-shares-needed"], 3, where)
+        self.failUnlessEqual(d["count-shares-expected"], 10, where)
+        if not incomplete:
+            self.failUnlessEqual(d["count-good-share-hosts"], len(self.clients), where)
+        self.failUnlessEqual(d["count-corrupt-shares"], 0, where)
+        self.failUnlessEqual(d["list-corrupt-shares"], [], where)
+        if not incomplete:
+            self.failUnlessEqual(sorted(d["servers-responding"]),
+                                 sorted([c.nodeid for c in self.clients]),
+                                 where)
+            self.failUnless("sharemap" in d, str((where, d)))
+            all_serverids = set()
+            for (shareid, serverids) in d["sharemap"].items():
+                all_serverids.update(serverids)
+            self.failUnlessEqual(sorted(all_serverids),
+                                 sorted([c.nodeid for c in self.clients]),
+                                 where)
+
+        self.failUnlessEqual(d["count-wrong-shares"], 0, where)
+        self.failUnlessEqual(d["count-recoverable-versions"], 1, where)
+        self.failUnlessEqual(d["count-unrecoverable-versions"], 0, where)
+
+
+    def check_and_repair_is_healthy(self, cr, n, where, incomplete=False):
+        self.failUnless(ICheckAndRepairResults.providedBy(cr), (where, cr))
+        self.failUnless(cr.get_pre_repair_results().is_healthy(), where)
+        self.check_is_healthy(cr.get_pre_repair_results(), n, where, incomplete)
+        self.failUnless(cr.get_post_repair_results().is_healthy(), where)
+        self.check_is_healthy(cr.get_post_repair_results(), n, where, incomplete)
+        self.failIf(cr.get_repair_attempted(), where)
+
+    def deep_check_is_healthy(self, cr, num_healthy, where):
+        self.failUnless(IDeepCheckResults.providedBy(cr))
+        self.failUnlessEqual(cr.get_counters()["count-objects-healthy"],
+                             num_healthy, where)
+
+    def deep_check_and_repair_is_healthy(self, cr, num_healthy, where):
+        self.failUnless(IDeepCheckAndRepairResults.providedBy(cr), where)
+        c = cr.get_counters()
+        self.failUnlessEqual(c["count-objects-healthy-pre-repair"],
+                             num_healthy, where)
+        self.failUnlessEqual(c["count-objects-healthy-post-repair"],
+                             num_healthy, where)
+        self.failUnlessEqual(c["count-repairs-attempted"], 0, where)
+
+    def test_good(self):
+        self.basedir = self.mktemp()
+        d = self.set_up_nodes()
+        d.addCallback(self.set_up_tree)
+        d.addCallback(self.do_stats)
+        d.addCallback(self.do_web_stream_manifest)
+        d.addCallback(self.do_web_stream_check)
+        d.addCallback(self.do_test_check_good)
+        d.addCallback(self.do_test_web_good)
+        d.addCallback(self.do_test_cli_good)
+        d.addErrback(self.explain_web_error)
+        d.addErrback(self.explain_error)
+        return d
+
+    def do_stats(self, ignored):
+        d = defer.succeed(None)
+        d.addCallback(lambda ign: self.root.start_deep_stats().when_done())
+        d.addCallback(self.check_stats_good)
+        return d
+
+    def check_stats_good(self, s):
+        self.failUnlessEqual(s["count-directories"], 1)
+        self.failUnlessEqual(s["count-files"], 4)
+        self.failUnlessEqual(s["count-immutable-files"], 1)
+        self.failUnlessEqual(s["count-literal-files"], 2)
+        self.failUnlessEqual(s["count-mutable-files"], 1)
+        # don't check directories: their size will vary
+        # s["largest-directory"]
+        # s["size-directories"]
+        self.failUnlessEqual(s["largest-directory-children"], 5)
+        self.failUnlessEqual(s["largest-immutable-file"], 13000)
+        # to re-use this function for both the local
+        # dirnode.start_deep_stats() and the webapi t=start-deep-stats, we
+        # coerce the result into a list of tuples. dirnode.start_deep_stats()
+        # returns a list of tuples, but JSON only knows about lists., so
+        # t=start-deep-stats returns a list of lists.
+        histogram = [tuple(stuff) for stuff in s["size-files-histogram"]]
+        self.failUnlessEqual(histogram, [(11, 31, 2),
+                                         (10001, 31622, 1),
+                                         ])
+        self.failUnlessEqual(s["size-immutable-files"], 13000)
+        self.failUnlessEqual(s["size-literal-files"], 48)
+
+    def do_web_stream_manifest(self, ignored):
+        d = self.web(self.root, method="POST", t="stream-manifest")
+        d.addCallback(lambda (output,url):
+                      self._check_streamed_manifest(output))
+        return d
+
+    def _check_streamed_manifest(self, output):
+        units = list(self.parse_streamed_json(output))
+        files = [u for u in units if u["type"] in ("file", "directory")]
+        assert units[-1]["type"] == "stats"
+        stats = units[-1]["stats"]
+        self.failUnlessEqual(len(files), 5)
+        # [root,mutable,large] are distributed, [small,small2] are not
+        self.failUnlessEqual(len([f for f in files
+                                  if f["verifycap"] is not None]), 3)
+        self.failUnlessEqual(len([f for f in files
+                                  if f["verifycap"] is None]), 2)
+        self.failUnlessEqual(len([f for f in files
+                                  if f["repaircap"] is not None]), 3)
+        self.failUnlessEqual(len([f for f in files
+                                  if f["repaircap"] is None]), 2)
+        self.failUnlessEqual(len([f for f in files
+                                  if f["storage-index"] is not None]), 3)
+        self.failUnlessEqual(len([f for f in files
+                                  if f["storage-index"] is None]), 2)
+        # make sure that a mutable file has filecap==repaircap!=verifycap
+        mutable = [f for f in files
+                   if f["cap"] is not None
+                   and f["cap"].startswith("URI:SSK:")][0]
+        self.failUnlessEqual(mutable["cap"], self.mutable_uri)
+        self.failIfEqual(mutable["cap"], mutable["verifycap"])
+        self.failUnlessEqual(mutable["cap"], mutable["repaircap"])
+        # for immutable file, verifycap==repaircap!=filecap
+        large = [f for f in files
+                   if f["cap"] is not None
+                   and f["cap"].startswith("URI:CHK:")][0]
+        self.failUnlessEqual(large["cap"], self.large_uri)
+        self.failIfEqual(large["cap"], large["verifycap"])
+        self.failUnlessEqual(large["verifycap"], large["repaircap"])
+        self.check_stats_good(stats)
+
+    def do_web_stream_check(self, ignored):
+        return
+        d = self.web(self.root, t="stream-deep-check")
+        def _check(res):
+            units = list(self.parse_streamed_json(res))
+            files = [u for u in units if u["type"] in ("file", "directory")]
+            assert units[-1]["type"] == "stats"
+            stats = units[-1]["stats"]
+            # ...
+        d.addCallback(_check)
+        return d
+
+    def do_test_check_good(self, ignored):
+        d = defer.succeed(None)
+        # check the individual items
+        d.addCallback(lambda ign: self.root.check(Monitor()))
+        d.addCallback(self.check_is_healthy, self.root, "root")
+        d.addCallback(lambda ign: self.mutable.check(Monitor()))
+        d.addCallback(self.check_is_healthy, self.mutable, "mutable")
+        d.addCallback(lambda ign: self.large.check(Monitor()))
+        d.addCallback(self.check_is_healthy, self.large, "large")
+        d.addCallback(lambda ign: self.small.check(Monitor()))
+        d.addCallback(self.failUnlessEqual, None, "small")
+        d.addCallback(lambda ign: self.small2.check(Monitor()))
+        d.addCallback(self.failUnlessEqual, None, "small2")
+
+        # and again with verify=True
+        d.addCallback(lambda ign: self.root.check(Monitor(), verify=True))
+        d.addCallback(self.check_is_healthy, self.root, "root")
+        d.addCallback(lambda ign: self.mutable.check(Monitor(), verify=True))
+        d.addCallback(self.check_is_healthy, self.mutable, "mutable")
+        d.addCallback(lambda ign: self.large.check(Monitor(), verify=True))
+        d.addCallback(self.check_is_healthy, self.large, "large", incomplete=True)
+        d.addCallback(lambda ign: self.small.check(Monitor(), verify=True))
+        d.addCallback(self.failUnlessEqual, None, "small")
+        d.addCallback(lambda ign: self.small2.check(Monitor(), verify=True))
+        d.addCallback(self.failUnlessEqual, None, "small2")
+
+        # and check_and_repair(), which should be a nop
+        d.addCallback(lambda ign: self.root.check_and_repair(Monitor()))
+        d.addCallback(self.check_and_repair_is_healthy, self.root, "root")
+        d.addCallback(lambda ign: self.mutable.check_and_repair(Monitor()))
+        d.addCallback(self.check_and_repair_is_healthy, self.mutable, "mutable")
+        #TODO d.addCallback(lambda ign: self.large.check_and_repair(Monitor()))
+        #TODO d.addCallback(self.check_and_repair_is_healthy, self.large, "large")
+        #TODO d.addCallback(lambda ign: self.small.check_and_repair(Monitor()))
+        #TODO d.addCallback(self.failUnlessEqual, None, "small")
+        #TODO d.addCallback(lambda ign: self.small2.check_and_repair(Monitor()))
+        #TODO d.addCallback(self.failUnlessEqual, None, "small2")
+
+        # check_and_repair(verify=True)
+        d.addCallback(lambda ign: self.root.check_and_repair(Monitor(), verify=True))
+        d.addCallback(self.check_and_repair_is_healthy, self.root, "root")
+        d.addCallback(lambda ign: self.mutable.check_and_repair(Monitor(), verify=True))
+        d.addCallback(self.check_and_repair_is_healthy, self.mutable, "mutable")
+        #TODO d.addCallback(lambda ign: self.large.check_and_repair(Monitor(), verify=True))
+        #TODO d.addCallback(self.check_and_repair_is_healthy, self.large, "large",
+        #TODO               incomplete=True)
+        #TODO d.addCallback(lambda ign: self.small.check_and_repair(Monitor(), verify=True))
+        #TODO d.addCallback(self.failUnlessEqual, None, "small")
+        #TODO d.addCallback(lambda ign: self.small2.check_and_repair(Monitor(), verify=True))
+        #TODO d.addCallback(self.failUnlessEqual, None, "small2")
+
+
+        # now deep-check the root, with various verify= and repair= options
+        d.addCallback(lambda ign:
+                      self.root.start_deep_check().when_done())
+        d.addCallback(self.deep_check_is_healthy, 3, "root")
+        d.addCallback(lambda ign:
+                      self.root.start_deep_check(verify=True).when_done())
+        d.addCallback(self.deep_check_is_healthy, 3, "root")
+        d.addCallback(lambda ign:
+                      self.root.start_deep_check_and_repair().when_done())
+        d.addCallback(self.deep_check_and_repair_is_healthy, 3, "root")
+        d.addCallback(lambda ign:
+                      self.root.start_deep_check_and_repair(verify=True).when_done())
+        d.addCallback(self.deep_check_and_repair_is_healthy, 3, "root")
+
+        # and finally, start a deep-check, but then cancel it.
+        d.addCallback(lambda ign: self.root.start_deep_check())
+        def _checking(monitor):
+            monitor.cancel()
+            d = monitor.when_done()
+            # this should fire as soon as the next dirnode.list finishes.
+            # TODO: add a counter to measure how many list() calls are made,
+            # assert that no more than one gets to run before the cancel()
+            # takes effect.
+            def _finished_normally(res):
+                self.fail("this was supposed to fail, not finish normally")
+            def _cancelled(f):
+                f.trap(OperationCancelledError)
+            d.addCallbacks(_finished_normally, _cancelled)
+            return d
+        d.addCallback(_checking)
+
+        return d
+
+    def json_check_is_healthy(self, data, n, where, incomplete=False):
+
+        self.failUnlessEqual(data["storage-index"],
+                             base32.b2a(n.get_storage_index()), where)
+        self.failUnless("summary" in data, (where, data))
+        self.failUnlessEqual(data["summary"].lower(), "healthy",
+                             "%s: '%s'" % (where, data["summary"]))
+        r = data["results"]
+        self.failUnlessEqual(r["healthy"], True, where)
+        needs_rebalancing = bool( len(self.clients) < 10 )
+        if not incomplete:
+            self.failUnlessEqual(r["needs-rebalancing"], needs_rebalancing, where)
+        self.failUnlessEqual(r["count-shares-good"], 10, where)
+        self.failUnlessEqual(r["count-shares-needed"], 3, where)
+        self.failUnlessEqual(r["count-shares-expected"], 10, where)
+        if not incomplete:
+            self.failUnlessEqual(r["count-good-share-hosts"], len(self.clients), where)
+        self.failUnlessEqual(r["count-corrupt-shares"], 0, where)
+        self.failUnlessEqual(r["list-corrupt-shares"], [], where)
+        if not incomplete:
+            self.failUnlessEqual(sorted(r["servers-responding"]),
+                                 sorted([idlib.nodeid_b2a(c.nodeid)
+                                         for c in self.clients]), where)
+            self.failUnless("sharemap" in r, where)
+            all_serverids = set()
+            for (shareid, serverids_s) in r["sharemap"].items():
+                all_serverids.update(serverids_s)
+            self.failUnlessEqual(sorted(all_serverids),
+                                 sorted([idlib.nodeid_b2a(c.nodeid)
+                                         for c in self.clients]), where)
+        self.failUnlessEqual(r["count-wrong-shares"], 0, where)
+        self.failUnlessEqual(r["count-recoverable-versions"], 1, where)
+        self.failUnlessEqual(r["count-unrecoverable-versions"], 0, where)
+
+    def json_check_and_repair_is_healthy(self, data, n, where, incomplete=False):
+        self.failUnlessEqual(data["storage-index"],
+                             base32.b2a(n.get_storage_index()), where)
+        self.failUnlessEqual(data["repair-attempted"], False, where)
+        self.json_check_is_healthy(data["pre-repair-results"],
+                                   n, where, incomplete)
+        self.json_check_is_healthy(data["post-repair-results"],
+                                   n, where, incomplete)
+
+    def json_full_deepcheck_is_healthy(self, data, n, where):
+        self.failUnlessEqual(data["root-storage-index"],
+                             base32.b2a(n.get_storage_index()), where)
+        self.failUnlessEqual(data["count-objects-checked"], 3, where)
+        self.failUnlessEqual(data["count-objects-healthy"], 3, where)
+        self.failUnlessEqual(data["count-objects-unhealthy"], 0, where)
+        self.failUnlessEqual(data["count-corrupt-shares"], 0, where)
+        self.failUnlessEqual(data["list-corrupt-shares"], [], where)
+        self.failUnlessEqual(data["list-unhealthy-files"], [], where)
+        self.json_check_stats_good(data["stats"], where)
+
+    def json_full_deepcheck_and_repair_is_healthy(self, data, n, where):
+        self.failUnlessEqual(data["root-storage-index"],
+                             base32.b2a(n.get_storage_index()), where)
+        self.failUnlessEqual(data["count-objects-checked"], 3, where)
+
+        self.failUnlessEqual(data["count-objects-healthy-pre-repair"], 3, where)
+        self.failUnlessEqual(data["count-objects-unhealthy-pre-repair"], 0, where)
+        self.failUnlessEqual(data["count-corrupt-shares-pre-repair"], 0, where)
+
+        self.failUnlessEqual(data["count-objects-healthy-post-repair"], 3, where)
+        self.failUnlessEqual(data["count-objects-unhealthy-post-repair"], 0, where)
+        self.failUnlessEqual(data["count-corrupt-shares-post-repair"], 0, where)
+
+        self.failUnlessEqual(data["list-corrupt-shares"], [], where)
+        self.failUnlessEqual(data["list-remaining-corrupt-shares"], [], where)
+        self.failUnlessEqual(data["list-unhealthy-files"], [], where)
+
+        self.failUnlessEqual(data["count-repairs-attempted"], 0, where)
+        self.failUnlessEqual(data["count-repairs-successful"], 0, where)
+        self.failUnlessEqual(data["count-repairs-unsuccessful"], 0, where)
+
+
+    def json_check_lit(self, data, n, where):
+        self.failUnlessEqual(data["storage-index"], "", where)
+        self.failUnlessEqual(data["results"]["healthy"], True, where)
+
+    def json_check_stats_good(self, data, where):
+        self.check_stats_good(data)
+
+    def do_test_web_good(self, ignored):
+        d = defer.succeed(None)
+
+        # stats
+        d.addCallback(lambda ign:
+                      self.slow_web(self.root,
+                                    t="start-deep-stats", output="json"))
+        d.addCallback(self.json_check_stats_good, "deep-stats")
+
+        # check, no verify
+        d.addCallback(lambda ign: self.web_json(self.root, t="check"))
+        d.addCallback(self.json_check_is_healthy, self.root, "root")
+        d.addCallback(lambda ign: self.web_json(self.mutable, t="check"))
+        d.addCallback(self.json_check_is_healthy, self.mutable, "mutable")
+        d.addCallback(lambda ign: self.web_json(self.large, t="check"))
+        d.addCallback(self.json_check_is_healthy, self.large, "large")
+        d.addCallback(lambda ign: self.web_json(self.small, t="check"))
+        d.addCallback(self.json_check_lit, self.small, "small")
+        d.addCallback(lambda ign: self.web_json(self.small2, t="check"))
+        d.addCallback(self.json_check_lit, self.small2, "small2")
+
+        # check and verify
+        d.addCallback(lambda ign:
+                      self.web_json(self.root, t="check", verify="true"))
+        d.addCallback(self.json_check_is_healthy, self.root, "root+v")
+        d.addCallback(lambda ign:
+                      self.web_json(self.mutable, t="check", verify="true"))
+        d.addCallback(self.json_check_is_healthy, self.mutable, "mutable+v")
+        d.addCallback(lambda ign:
+                      self.web_json(self.large, t="check", verify="true"))
+        d.addCallback(self.json_check_is_healthy, self.large, "large+v",
+                      incomplete=True)
+        d.addCallback(lambda ign:
+                      self.web_json(self.small, t="check", verify="true"))
+        d.addCallback(self.json_check_lit, self.small, "small+v")
+        d.addCallback(lambda ign:
+                      self.web_json(self.small2, t="check", verify="true"))
+        d.addCallback(self.json_check_lit, self.small2, "small2+v")
+
+        # check and repair, no verify
+        d.addCallback(lambda ign:
+                      self.web_json(self.root, t="check", repair="true"))
+        d.addCallback(self.json_check_and_repair_is_healthy, self.root, "root+r")
+        d.addCallback(lambda ign:
+                      self.web_json(self.mutable, t="check", repair="true"))
+        d.addCallback(self.json_check_and_repair_is_healthy, self.mutable, "mutable+r")
+        d.addCallback(lambda ign:
+                      self.web_json(self.large, t="check", repair="true"))
+        d.addCallback(self.json_check_and_repair_is_healthy, self.large, "large+r")
+        d.addCallback(lambda ign:
+                      self.web_json(self.small, t="check", repair="true"))
+        d.addCallback(self.json_check_lit, self.small, "small+r")
+        d.addCallback(lambda ign:
+                      self.web_json(self.small2, t="check", repair="true"))
+        d.addCallback(self.json_check_lit, self.small2, "small2+r")
+
+        # check+verify+repair
+        d.addCallback(lambda ign:
+                      self.web_json(self.root, t="check", repair="true", verify="true"))
+        d.addCallback(self.json_check_and_repair_is_healthy, self.root, "root+vr")
+        d.addCallback(lambda ign:
+                      self.web_json(self.mutable, t="check", repair="true", verify="true"))
+        d.addCallback(self.json_check_and_repair_is_healthy, self.mutable, "mutable+vr")
+        d.addCallback(lambda ign:
+                      self.web_json(self.large, t="check", repair="true", verify="true"))
+        d.addCallback(self.json_check_and_repair_is_healthy, self.large, "large+vr", incomplete=True)
+        d.addCallback(lambda ign:
+                      self.web_json(self.small, t="check", repair="true", verify="true"))
+        d.addCallback(self.json_check_lit, self.small, "small+vr")
+        d.addCallback(lambda ign:
+                      self.web_json(self.small2, t="check", repair="true", verify="true"))
+        d.addCallback(self.json_check_lit, self.small2, "small2+vr")
+
+        # now run a deep-check, with various verify= and repair= flags
+        d.addCallback(lambda ign:
+                      self.slow_web(self.root, t="start-deep-check", output="json"))
+        d.addCallback(self.json_full_deepcheck_is_healthy, self.root, "root+d")
+        d.addCallback(lambda ign:
+                      self.slow_web(self.root, t="start-deep-check", verify="true",
+                                    output="json"))
+        d.addCallback(self.json_full_deepcheck_is_healthy, self.root, "root+dv")
+        d.addCallback(lambda ign:
+                      self.slow_web(self.root, t="start-deep-check", repair="true",
+                                    output="json"))
+        d.addCallback(self.json_full_deepcheck_and_repair_is_healthy, self.root, "root+dr")
+        d.addCallback(lambda ign:
+                      self.slow_web(self.root, t="start-deep-check", verify="true", repair="true", output="json"))
+        d.addCallback(self.json_full_deepcheck_and_repair_is_healthy, self.root, "root+dvr")
+
+        # now look at t=info
+        d.addCallback(lambda ign: self.web(self.root, t="info"))
+        # TODO: examine the output
+        d.addCallback(lambda ign: self.web(self.mutable, t="info"))
+        d.addCallback(lambda ign: self.web(self.large, t="info"))
+        d.addCallback(lambda ign: self.web(self.small, t="info"))
+        d.addCallback(lambda ign: self.web(self.small2, t="info"))
+
+        return d
+
+    def _run_cli(self, argv, stdin=""):
+        #print "CLI:", argv
+        stdout, stderr = StringIO(), StringIO()
+        d = threads.deferToThread(runner.runner, argv, run_by_human=False,
+                                  stdin=StringIO(stdin),
+                                  stdout=stdout, stderr=stderr)
+        def _done(res):
+            return stdout.getvalue(), stderr.getvalue()
+        d.addCallback(_done)
+        return d
+
+    def do_test_cli_good(self, ignored):
+        d = defer.succeed(None)
+        d.addCallback(lambda ign: self.do_cli_manifest_stream1())
+        d.addCallback(lambda ign: self.do_cli_manifest_stream2())
+        d.addCallback(lambda ign: self.do_cli_manifest_stream3())
+        d.addCallback(lambda ign: self.do_cli_manifest_stream4())
+        d.addCallback(lambda ign: self.do_cli_manifest_stream5())
+        d.addCallback(lambda ign: self.do_cli_stats1())
+        d.addCallback(lambda ign: self.do_cli_stats2())
+        return d
+
+    def _check_manifest_storage_index(self, out):
+        lines = [l for l in out.split("\n") if l]
+        self.failUnlessEqual(len(lines), 3)
+        self.failUnless(base32.b2a(self.root.get_storage_index()) in lines)
+        self.failUnless(base32.b2a(self.mutable.get_storage_index()) in lines)
+        self.failUnless(base32.b2a(self.large.get_storage_index()) in lines)
+
+    def do_cli_manifest_stream1(self):
+        basedir = self.getdir("client0")
+        d = self._run_cli(["manifest",
+                           "--node-directory", basedir,
+                           self.root_uri])
+        def _check((out,err)):
+            self.failUnlessEqual(err, "")
+            lines = [l for l in out.split("\n") if l]
+            self.failUnlessEqual(len(lines), 5)
+            caps = {}
+            for l in lines:
+                try:
+                    cap, path = l.split(None, 1)
+                except ValueError:
+                    cap = l.strip()
+                    path = ""
+                caps[cap] = path
+            self.failUnless(self.root.get_uri() in caps)
+            self.failUnlessEqual(caps[self.root.get_uri()], "")
+            self.failUnlessEqual(caps[self.mutable.get_uri()], "mutable")
+            self.failUnlessEqual(caps[self.large.get_uri()], "large")
+            self.failUnlessEqual(caps[self.small.get_uri()], "small")
+            self.failUnlessEqual(caps[self.small2.get_uri()], "small2")
+        d.addCallback(_check)
+        return d
+
+    def do_cli_manifest_stream2(self):
+        basedir = self.getdir("client0")
+        d = self._run_cli(["manifest",
+                           "--node-directory", basedir,
+                           "--raw",
+                           self.root_uri])
+        def _check((out,err)):
+            self.failUnlessEqual(err, "")
+            # this should be the same as the POST t=stream-manifest output
+            self._check_streamed_manifest(out)
+        d.addCallback(_check)
+        return d
+
+    def do_cli_manifest_stream3(self):
+        basedir = self.getdir("client0")
+        d = self._run_cli(["manifest",
+                           "--node-directory", basedir,
+                           "--storage-index",
+                           self.root_uri])
+        def _check((out,err)):
+            self.failUnlessEqual(err, "")
+            self._check_manifest_storage_index(out)
+        d.addCallback(_check)
+        return d
+
+    def do_cli_manifest_stream4(self):
+        basedir = self.getdir("client0")
+        d = self._run_cli(["manifest",
+                           "--node-directory", basedir,
+                           "--verify-cap",
+                           self.root_uri])
+        def _check((out,err)):
+            self.failUnlessEqual(err, "")
+            lines = [l for l in out.split("\n") if l]
+            self.failUnlessEqual(len(lines), 3)
+            self.failUnless(self.root.get_verify_cap().to_string() in lines)
+            self.failUnless(self.mutable.get_verify_cap().to_string() in lines)
+            self.failUnless(self.large.get_verify_cap().to_string() in lines)
+        d.addCallback(_check)
+        return d
+
+    def do_cli_manifest_stream5(self):
+        basedir = self.getdir("client0")
+        d = self._run_cli(["manifest",
+                           "--node-directory", basedir,
+                           "--repair-cap",
+                           self.root_uri])
+        def _check((out,err)):
+            self.failUnlessEqual(err, "")
+            lines = [l for l in out.split("\n") if l]
+            self.failUnlessEqual(len(lines), 3)
+            self.failUnless(self.root.get_repair_cap().to_string() in lines)
+            self.failUnless(self.mutable.get_repair_cap().to_string() in lines)
+            self.failUnless(self.large.get_repair_cap().to_string() in lines)
+        d.addCallback(_check)
+        return d
+
+    def do_cli_stats1(self):
+        basedir = self.getdir("client0")
+        d = self._run_cli(["stats",
+                           "--node-directory", basedir,
+                           self.root_uri])
+        def _check3((out,err)):
+            lines = [l.strip() for l in out.split("\n") if l]
+            self.failUnless("count-immutable-files: 1" in lines)
+            self.failUnless("count-mutable-files: 1" in lines)
+            self.failUnless("count-literal-files: 2" in lines)
+            self.failUnless("count-files: 4" in lines)
+            self.failUnless("count-directories: 1" in lines)
+            self.failUnless("size-immutable-files: 13000    (13.00 kB, 12.70 kiB)" in lines, lines)
+            self.failUnless("size-literal-files: 48" in lines)
+            self.failUnless("   11-31    : 2    (31 B, 31 B)".strip() in lines)
+            self.failUnless("10001-31622 : 1    (31.62 kB, 30.88 kiB)".strip() in lines)
+        d.addCallback(_check3)
+        return d
+
+    def do_cli_stats2(self):
+        basedir = self.getdir("client0")
+        d = self._run_cli(["stats",
+                           "--node-directory", basedir,
+                           "--raw",
+                           self.root_uri])
+        def _check4((out,err)):
+            data = simplejson.loads(out)
+            self.failUnlessEqual(data["count-immutable-files"], 1)
+            self.failUnlessEqual(data["count-immutable-files"], 1)
+            self.failUnlessEqual(data["count-mutable-files"], 1)
+            self.failUnlessEqual(data["count-literal-files"], 2)
+            self.failUnlessEqual(data["count-files"], 4)
+            self.failUnlessEqual(data["count-directories"], 1)
+            self.failUnlessEqual(data["size-immutable-files"], 13000)
+            self.failUnlessEqual(data["size-literal-files"], 48)
+            self.failUnless([11,31,2] in data["size-files-histogram"])
+            self.failUnless([10001,31622,1] in data["size-files-histogram"])
+        d.addCallback(_check4)
+        return d
+
+
+class DeepCheckWebBad(DeepCheckBase, unittest.TestCase):
+
+    def test_bad(self):
+        self.basedir = self.mktemp()
+        d = self.set_up_nodes()
+        d.addCallback(self.set_up_damaged_tree)
+        d.addCallback(self.do_check)
+        d.addCallback(self.do_deepcheck)
+        d.addCallback(self.do_test_web_bad)
+        d.addErrback(self.explain_web_error)
+        d.addErrback(self.explain_error)
+        return d
+
+
+
+    def set_up_damaged_tree(self, ignored):
+        # 6.4s
+
+        # root
+        #   mutable-good
+        #   mutable-missing-shares
+        #   mutable-corrupt-shares
+        #   mutable-unrecoverable
+        #   large-good
+        #   large-missing-shares
+        #   large-corrupt-shares
+        #   large-unrecoverable
+
+        self.nodes = {}
+
+        c0 = self.clients[0]
+        d = c0.create_empty_dirnode()
+        def _created_root(n):
+            self.root = n
+            self.root_uri = n.get_uri()
+        d.addCallback(_created_root)
+        d.addCallback(self.create_mangled, "mutable-good")
+        d.addCallback(self.create_mangled, "mutable-missing-shares")
+        d.addCallback(self.create_mangled, "mutable-corrupt-shares")
+        d.addCallback(self.create_mangled, "mutable-unrecoverable")
+        d.addCallback(self.create_mangled, "large-good")
+        d.addCallback(self.create_mangled, "large-missing-shares")
+        d.addCallback(self.create_mangled, "large-corrupt-shares")
+        d.addCallback(self.create_mangled, "large-unrecoverable")
+
+        return d
+
+
+    def create_mangled(self, ignored, name):
+        nodetype, mangletype = name.split("-", 1)
+        if nodetype == "mutable":
+            d = self.clients[0].create_mutable_file("mutable file contents")
+            d.addCallback(lambda n: self.root.set_node(unicode(name), n))
+        elif nodetype == "large":
+            large = upload.Data("Lots of data\n" * 1000 + name + "\n", None)
+            d = self.root.add_file(unicode(name), large)
+        elif nodetype == "small":
+            small = upload.Data("Small enough for a LIT", None)
+            d = self.root.add_file(unicode(name), small)
+
+        def _stash_node(node):
+            self.nodes[name] = node
+            return node
+        d.addCallback(_stash_node)
+
+        if mangletype == "good":
+            pass
+        elif mangletype == "missing-shares":
+            d.addCallback(self._delete_some_shares)
+        elif mangletype == "corrupt-shares":
+            d.addCallback(self._corrupt_some_shares)
+        else:
+            assert mangletype == "unrecoverable"
+            d.addCallback(self._delete_most_shares)
+
+        return d
+
+    def _run_cli(self, argv):
+        stdout, stderr = StringIO(), StringIO()
+        # this can only do synchronous operations
+        assert argv[0] == "debug"
+        runner.runner(argv, run_by_human=False, stdout=stdout, stderr=stderr)
+        return stdout.getvalue()
+
+    def _find_shares(self, node):
+        si = node.get_storage_index()
+        out = self._run_cli(["debug", "find-shares", base32.b2a(si)] +
+                            [c.basedir for c in self.clients])
+        files = out.split("\n")
+        return [f for f in files if f]
+
+    def _delete_some_shares(self, node):
+        shares = self._find_shares(node)
+        os.unlink(shares[0])
+        os.unlink(shares[1])
+
+    def _corrupt_some_shares(self, node):
+        shares = self._find_shares(node)
+        self._run_cli(["debug", "corrupt-share", shares[0]])
+        self._run_cli(["debug", "corrupt-share", shares[1]])
+
+    def _delete_most_shares(self, node):
+        shares = self._find_shares(node)
+        for share in shares[1:]:
+            os.unlink(share)
+
+
+    def check_is_healthy(self, cr, where):
+        try:
+            self.failUnless(ICheckResults.providedBy(cr), (cr, type(cr), where))
+            self.failUnless(cr.is_healthy(), (cr.get_report(), cr.is_healthy(), cr.get_summary(), where))
+            self.failUnless(cr.is_recoverable(), where)
+            d = cr.get_data()
+            self.failUnlessEqual(d["count-recoverable-versions"], 1, where)
+            self.failUnlessEqual(d["count-unrecoverable-versions"], 0, where)
+            return cr
+        except Exception, le:
+            le.args = tuple(le.args + (where,))
+            raise
+
+    def check_is_missing_shares(self, cr, where):
+        self.failUnless(ICheckResults.providedBy(cr), where)
+        self.failIf(cr.is_healthy(), where)
+        self.failUnless(cr.is_recoverable(), where)
+        d = cr.get_data()
+        self.failUnlessEqual(d["count-recoverable-versions"], 1, where)
+        self.failUnlessEqual(d["count-unrecoverable-versions"], 0, where)
+        return cr
+
+    def check_has_corrupt_shares(self, cr, where):
+        # by "corrupt-shares" we mean the file is still recoverable
+        self.failUnless(ICheckResults.providedBy(cr), where)
+        d = cr.get_data()
+        self.failIf(cr.is_healthy(), (where, cr))
+        self.failUnless(cr.is_recoverable(), where)
+        d = cr.get_data()
+        self.failUnless(d["count-shares-good"] < 10, where)
+        self.failUnless(d["count-corrupt-shares"], where)
+        self.failUnless(d["list-corrupt-shares"], where)
+        return cr
+
+    def check_is_unrecoverable(self, cr, where):
+        self.failUnless(ICheckResults.providedBy(cr), where)
+        d = cr.get_data()
+        self.failIf(cr.is_healthy(), where)
+        self.failIf(cr.is_recoverable(), where)
+        self.failUnless(d["count-shares-good"] < d["count-shares-needed"], (d["count-shares-good"], d["count-shares-needed"], where))
+        self.failUnlessEqual(d["count-recoverable-versions"], 0, where)
+        self.failUnlessEqual(d["count-unrecoverable-versions"], 1, where)
+        return cr
+
+    def do_check(self, ignored):
+        d = defer.succeed(None)
+
+        # check the individual items, without verification. This will not
+        # detect corrupt shares.
+        def _check(which, checker):
+            d = self.nodes[which].check(Monitor())
+            d.addCallback(checker, which + "--check")
+            return d
+
+        d.addCallback(lambda ign: _check("mutable-good", self.check_is_healthy))
+        d.addCallback(lambda ign: _check("mutable-missing-shares",
+                                         self.check_is_missing_shares))
+        d.addCallback(lambda ign: _check("mutable-corrupt-shares",
+                                         self.check_is_healthy))
+        d.addCallback(lambda ign: _check("mutable-unrecoverable",
+                                         self.check_is_unrecoverable))
+        d.addCallback(lambda ign: _check("large-good", self.check_is_healthy))
+        d.addCallback(lambda ign: _check("large-missing-shares",
+                                         self.check_is_missing_shares))
+        d.addCallback(lambda ign: _check("large-corrupt-shares",
+                                         self.check_is_healthy))
+        d.addCallback(lambda ign: _check("large-unrecoverable",
+                                         self.check_is_unrecoverable))
+
+        # and again with verify=True, which *does* detect corrupt shares.
+        def _checkv(which, checker):
+            d = self.nodes[which].check(Monitor(), verify=True)
+            d.addCallback(checker, which + "--check-and-verify")
+            return d
+
+        d.addCallback(lambda ign: _checkv("mutable-good", self.check_is_healthy))
+        d.addCallback(lambda ign: _checkv("mutable-missing-shares",
+                                         self.check_is_missing_shares))
+        d.addCallback(lambda ign: _checkv("mutable-corrupt-shares",
+                                         self.check_has_corrupt_shares))
+        d.addCallback(lambda ign: _checkv("mutable-unrecoverable",
+                                         self.check_is_unrecoverable))
+        d.addCallback(lambda ign: _checkv("large-good", self.check_is_healthy))
+        d.addCallback(lambda ign: _checkv("large-missing-shares", self.check_is_missing_shares))
+        d.addCallback(lambda ign: _checkv("large-corrupt-shares", self.check_has_corrupt_shares))
+        d.addCallback(lambda ign: _checkv("large-unrecoverable",
+                                         self.check_is_unrecoverable))
+
+        return d
+
+    def do_deepcheck(self, ignored):
+        d = defer.succeed(None)
+
+        # now deep-check the root, with various verify= and repair= options
+        d.addCallback(lambda ign:
+                      self.root.start_deep_check().when_done())
+        def _check1(cr):
+            self.failUnless(IDeepCheckResults.providedBy(cr))
+            c = cr.get_counters()
+            self.failUnlessEqual(c["count-objects-checked"], 9)
+            self.failUnlessEqual(c["count-objects-healthy"], 5)
+            self.failUnlessEqual(c["count-objects-unhealthy"], 4)
+            self.failUnlessEqual(c["count-objects-unrecoverable"], 2)
+        d.addCallback(_check1)
+
+        d.addCallback(lambda ign:
+                      self.root.start_deep_check(verify=True).when_done())
+        def _check2(cr):
+            self.failUnless(IDeepCheckResults.providedBy(cr))
+            c = cr.get_counters()
+            self.failUnlessEqual(c["count-objects-checked"], 9)
+            self.failUnlessEqual(c["count-objects-healthy"], 3)
+            self.failUnlessEqual(c["count-objects-unhealthy"], 6)
+            self.failUnlessEqual(c["count-objects-healthy"], 3) # root, mutable good, large good
+            self.failUnlessEqual(c["count-objects-unrecoverable"], 2) # mutable unrecoverable, large unrecoverable
+        d.addCallback(_check2)
+
+        return d
+
+    def json_is_healthy(self, data, where):
+        r = data["results"]
+        self.failUnless(r["healthy"], where)
+        self.failUnless(r["recoverable"], where)
+        self.failUnlessEqual(r["count-recoverable-versions"], 1, where)
+        self.failUnlessEqual(r["count-unrecoverable-versions"], 0, where)
+
+    def json_is_missing_shares(self, data, where):
+        r = data["results"]
+        self.failIf(r["healthy"], where)
+        self.failUnless(r["recoverable"], where)
+        self.failUnlessEqual(r["count-recoverable-versions"], 1, where)
+        self.failUnlessEqual(r["count-unrecoverable-versions"], 0, where)
+
+    def json_has_corrupt_shares(self, data, where):
+        # by "corrupt-shares" we mean the file is still recoverable
+        r = data["results"]
+        self.failIf(r["healthy"], where)
+        self.failUnless(r["recoverable"], where)
+        self.failUnless(r["count-shares-good"] < 10, where)
+        self.failUnless(r["count-corrupt-shares"], where)
+        self.failUnless(r["list-corrupt-shares"], where)
+
+    def json_is_unrecoverable(self, data, where):
+        r = data["results"]
+        self.failIf(r["healthy"], where)
+        self.failIf(r["recoverable"], where)
+        self.failUnless(r["count-shares-good"] < r["count-shares-needed"],
+                        where)
+        self.failUnlessEqual(r["count-recoverable-versions"], 0, where)
+        self.failUnlessEqual(r["count-unrecoverable-versions"], 1, where)
+
+    def do_test_web_bad(self, ignored):
+        d = defer.succeed(None)
+
+        # check, no verify
+        def _check(which, checker):
+            d = self.web_json(self.nodes[which], t="check")
+            d.addCallback(checker, which + "--webcheck")
+            return d
+
+        d.addCallback(lambda ign: _check("mutable-good",
+                                         self.json_is_healthy))
+        d.addCallback(lambda ign: _check("mutable-missing-shares",
+                                         self.json_is_missing_shares))
+        d.addCallback(lambda ign: _check("mutable-corrupt-shares",
+                                         self.json_is_healthy))
+        d.addCallback(lambda ign: _check("mutable-unrecoverable",
+                                         self.json_is_unrecoverable))
+        d.addCallback(lambda ign: _check("large-good",
+                                         self.json_is_healthy))
+        d.addCallback(lambda ign: _check("large-missing-shares",
+                                         self.json_is_missing_shares))
+        d.addCallback(lambda ign: _check("large-corrupt-shares",
+                                         self.json_is_healthy))
+        d.addCallback(lambda ign: _check("large-unrecoverable",
+                                         self.json_is_unrecoverable))
+
+        # check and verify
+        def _checkv(which, checker):
+            d = self.web_json(self.nodes[which], t="check", verify="true")
+            d.addCallback(checker, which + "--webcheck-and-verify")
+            return d
+
+        d.addCallback(lambda ign: _checkv("mutable-good",
+                                          self.json_is_healthy))
+        d.addCallback(lambda ign: _checkv("mutable-missing-shares",
+                                         self.json_is_missing_shares))
+        d.addCallback(lambda ign: _checkv("mutable-corrupt-shares",
+                                         self.json_has_corrupt_shares))
+        d.addCallback(lambda ign: _checkv("mutable-unrecoverable",
+                                         self.json_is_unrecoverable))
+        d.addCallback(lambda ign: _checkv("large-good",
+                                          self.json_is_healthy))
+        d.addCallback(lambda ign: _checkv("large-missing-shares", self.json_is_missing_shares))
+        d.addCallback(lambda ign: _checkv("large-corrupt-shares", self.json_has_corrupt_shares))
+        d.addCallback(lambda ign: _checkv("large-unrecoverable",
+                                         self.json_is_unrecoverable))
+
+        return d
diff --git a/src/allmydata/test/test_system.py b/src/allmydata/test/test_system.py
index 07a4ec55..5f7db1d6 100644
--- a/src/allmydata/test/test_system.py
+++ b/src/allmydata/test/test_system.py
@@ -1,5 +1,5 @@
 from base64 import b32encode
-import os, sys, time, re, simplejson, urllib
+import os, sys, time, re, simplejson
 from cStringIO import StringIO
 from zope.interface import implements
 from twisted.trial import unittest
@@ -16,9 +16,8 @@ from allmydata.util import idlib, mathutil
 from allmydata.util import log, base32
 from allmydata.scripts import runner
 from allmydata.interfaces import IDirectoryNode, IFileNode, IFileURI, \
-     ICheckResults, ICheckAndRepairResults, IDeepCheckResults, \
-     IDeepCheckAndRepairResults, NoSuchChildError, NotEnoughSharesError
-from allmydata.monitor import Monitor, OperationCancelledError
+     NoSuchChildError, NotEnoughSharesError
+from allmydata.monitor import Monitor
 from allmydata.mutable.common import NotMutableError
 from allmydata.mutable import layout as mutable_layout
 from foolscap import DeadReferenceError
@@ -26,8 +25,8 @@ from twisted.python.failure import Failure
 from twisted.web.client import getPage
 from twisted.web.error import Error
 
-from allmydata.test.common import SystemTestMixin, ErrorMixin, \
-     MemoryConsumer, download_to_data
+from allmydata.test.common import SystemTestMixin, MemoryConsumer, \
+     download_to_data
 
 LARGE_DATA = """
 This is some data to publish to the virtual drive, which needs to be large
@@ -1785,1144 +1784,3 @@ class SystemTest(SystemTestMixin, unittest.TestCase):
         d.addCallback(_got_lit_filenode)
         return d
 
-
-class MutableChecker(SystemTestMixin, unittest.TestCase, ErrorMixin):
-
-    def _run_cli(self, argv):
-        stdout, stderr = StringIO(), StringIO()
-        # this can only do synchronous operations
-        assert argv[0] == "debug"
-        runner.runner(argv, run_by_human=False, stdout=stdout, stderr=stderr)
-        return stdout.getvalue()
-
-    def test_good(self):
-        self.basedir = self.mktemp()
-        d = self.set_up_nodes()
-        CONTENTS = "a little bit of data"
-        d.addCallback(lambda res: self.clients[0].create_mutable_file(CONTENTS))
-        def _created(node):
-            self.node = node
-            si = self.node.get_storage_index()
-        d.addCallback(_created)
-        # now make sure the webapi verifier sees no problems
-        def _do_check(res):
-            url = (self.webish_url +
-                   "uri/%s" % urllib.quote(self.node.get_uri()) +
-                   "?t=check&verify=true")
-            return getPage(url, method="POST")
-        d.addCallback(_do_check)
-        def _got_results(out):
-            self.failUnless("<span>Healthy : Healthy</span>" in out, out)
-            self.failUnless("Recoverable Versions: 10*seq1-" in out, out)
-            self.failIf("Not Healthy!" in out, out)
-            self.failIf("Unhealthy" in out, out)
-            self.failIf("Corrupt Shares" in out, out)
-        d.addCallback(_got_results)
-        d.addErrback(self.explain_web_error)
-        return d
-
-    def test_corrupt(self):
-        self.basedir = self.mktemp()
-        d = self.set_up_nodes()
-        CONTENTS = "a little bit of data"
-        d.addCallback(lambda res: self.clients[0].create_mutable_file(CONTENTS))
-        def _created(node):
-            self.node = node
-            si = self.node.get_storage_index()
-            out = self._run_cli(["debug", "find-shares", base32.b2a(si),
-                                self.clients[1].basedir])
-            files = out.split("\n")
-            # corrupt one of them, using the CLI debug command
-            f = files[0]
-            shnum = os.path.basename(f)
-            nodeid = self.clients[1].nodeid
-            nodeid_prefix = idlib.shortnodeid_b2a(nodeid)
-            self.corrupt_shareid = "%s-sh%s" % (nodeid_prefix, shnum)
-            out = self._run_cli(["debug", "corrupt-share", files[0]])
-        d.addCallback(_created)
-        # now make sure the webapi verifier notices it
-        def _do_check(res):
-            url = (self.webish_url +
-                   "uri/%s" % urllib.quote(self.node.get_uri()) +
-                   "?t=check&verify=true")
-            return getPage(url, method="POST")
-        d.addCallback(_do_check)
-        def _got_results(out):
-            self.failUnless("Not Healthy!" in out, out)
-            self.failUnless("Unhealthy: best version has only 9 shares (encoding is 3-of-10)" in out, out)
-            self.failUnless("Corrupt Shares:" in out, out)
-        d.addCallback(_got_results)
-
-        # now make sure the webapi repairer can fix it
-        def _do_repair(res):
-            url = (self.webish_url +
-                   "uri/%s" % urllib.quote(self.node.get_uri()) +
-                   "?t=check&verify=true&repair=true")
-            return getPage(url, method="POST")
-        d.addCallback(_do_repair)
-        def _got_repair_results(out):
-            self.failUnless("<div>Repair successful</div>" in out, out)
-        d.addCallback(_got_repair_results)
-        d.addCallback(_do_check)
-        def _got_postrepair_results(out):
-            self.failIf("Not Healthy!" in out, out)
-            self.failUnless("Recoverable Versions: 10*seq" in out, out)
-        d.addCallback(_got_postrepair_results)
-        d.addErrback(self.explain_web_error)
-
-        return d
-
-    def test_delete_share(self):
-        self.basedir = self.mktemp()
-        d = self.set_up_nodes()
-        CONTENTS = "a little bit of data"
-        d.addCallback(lambda res: self.clients[0].create_mutable_file(CONTENTS))
-        def _created(node):
-            self.node = node
-            si = self.node.get_storage_index()
-            out = self._run_cli(["debug", "find-shares", base32.b2a(si),
-                                self.clients[1].basedir])
-            files = out.split("\n")
-            # corrupt one of them, using the CLI debug command
-            f = files[0]
-            shnum = os.path.basename(f)
-            nodeid = self.clients[1].nodeid
-            nodeid_prefix = idlib.shortnodeid_b2a(nodeid)
-            self.corrupt_shareid = "%s-sh%s" % (nodeid_prefix, shnum)
-            os.unlink(files[0])
-        d.addCallback(_created)
-        # now make sure the webapi checker notices it
-        def _do_check(res):
-            url = (self.webish_url +
-                   "uri/%s" % urllib.quote(self.node.get_uri()) +
-                   "?t=check&verify=false")
-            return getPage(url, method="POST")
-        d.addCallback(_do_check)
-        def _got_results(out):
-            self.failUnless("Not Healthy!" in out, out)
-            self.failUnless("Unhealthy: best version has only 9 shares (encoding is 3-of-10)" in out, out)
-            self.failIf("Corrupt Shares" in out, out)
-        d.addCallback(_got_results)
-
-        # now make sure the webapi repairer can fix it
-        def _do_repair(res):
-            url = (self.webish_url +
-                   "uri/%s" % urllib.quote(self.node.get_uri()) +
-                   "?t=check&verify=false&repair=true")
-            return getPage(url, method="POST")
-        d.addCallback(_do_repair)
-        def _got_repair_results(out):
-            self.failUnless("Repair successful" in out)
-        d.addCallback(_got_repair_results)
-        d.addCallback(_do_check)
-        def _got_postrepair_results(out):
-            self.failIf("Not Healthy!" in out, out)
-            self.failUnless("Recoverable Versions: 10*seq" in out)
-        d.addCallback(_got_postrepair_results)
-        d.addErrback(self.explain_web_error)
-
-        return d
-
-
-class DeepCheckBase(SystemTestMixin, ErrorMixin):
-
-    def web_json(self, n, **kwargs):
-        kwargs["output"] = "json"
-        d = self.web(n, "POST", **kwargs)
-        d.addCallback(self.decode_json)
-        return d
-
-    def decode_json(self, (s,url)):
-        try:
-            data = simplejson.loads(s)
-        except ValueError:
-            self.fail("%s: not JSON: '%s'" % (url, s))
-        return data
-
-    def parse_streamed_json(self, s):
-        for unit in s.split("\n"):
-            if not unit:
-                # stream should end with a newline, so split returns ""
-                continue
-            yield simplejson.loads(unit)
-
-    def web(self, n, method="GET", **kwargs):
-        # returns (data, url)
-        url = (self.webish_url + "uri/%s" % urllib.quote(n.get_uri())
-               + "?" + "&".join(["%s=%s" % (k,v) for (k,v) in kwargs.items()]))
-        d = getPage(url, method=method)
-        d.addCallback(lambda data: (data,url))
-        return d
-
-    def wait_for_operation(self, ignored, ophandle):
-        url = self.webish_url + "operations/" + ophandle
-        url += "?t=status&output=JSON"
-        d = getPage(url)
-        def _got(res):
-            try:
-                data = simplejson.loads(res)
-            except ValueError:
-                self.fail("%s: not JSON: '%s'" % (url, res))
-            if not data["finished"]:
-                d = self.stall(delay=1.0)
-                d.addCallback(self.wait_for_operation, ophandle)
-                return d
-            return data
-        d.addCallback(_got)
-        return d
-
-    def get_operation_results(self, ignored, ophandle, output=None):
-        url = self.webish_url + "operations/" + ophandle
-        url += "?t=status"
-        if output:
-            url += "&output=" + output
-        d = getPage(url)
-        def _got(res):
-            if output and output.lower() == "json":
-                try:
-                    return simplejson.loads(res)
-                except ValueError:
-                    self.fail("%s: not JSON: '%s'" % (url, res))
-            return res
-        d.addCallback(_got)
-        return d
-
-    def slow_web(self, n, output=None, **kwargs):
-        # use ophandle=
-        handle = base32.b2a(os.urandom(4))
-        d = self.web(n, "POST", ophandle=handle, **kwargs)
-        d.addCallback(self.wait_for_operation, handle)
-        d.addCallback(self.get_operation_results, handle, output=output)
-        return d
-
-
-class DeepCheckWebGood(DeepCheckBase, unittest.TestCase):
-    # construct a small directory tree (with one dir, one immutable file, one
-    # mutable file, one LIT file, and a loop), and then check/examine it in
-    # various ways.
-
-    def set_up_tree(self, ignored):
-        # 2.9s
-
-        # root
-        #   mutable
-        #   large
-        #   small
-        #   small2
-        #   loop -> root
-        c0 = self.clients[0]
-        d = c0.create_empty_dirnode()
-        def _created_root(n):
-            self.root = n
-            self.root_uri = n.get_uri()
-        d.addCallback(_created_root)
-        d.addCallback(lambda ign: c0.create_mutable_file("mutable file contents"))
-        d.addCallback(lambda n: self.root.set_node(u"mutable", n))
-        def _created_mutable(n):
-            self.mutable = n
-            self.mutable_uri = n.get_uri()
-        d.addCallback(_created_mutable)
-
-        large = upload.Data("Lots of data\n" * 1000, None)
-        d.addCallback(lambda ign: self.root.add_file(u"large", large))
-        def _created_large(n):
-            self.large = n
-            self.large_uri = n.get_uri()
-        d.addCallback(_created_large)
-
-        small = upload.Data("Small enough for a LIT", None)
-        d.addCallback(lambda ign: self.root.add_file(u"small", small))
-        def _created_small(n):
-            self.small = n
-            self.small_uri = n.get_uri()
-        d.addCallback(_created_small)
-
-        small2 = upload.Data("Small enough for a LIT too", None)
-        d.addCallback(lambda ign: self.root.add_file(u"small2", small2))
-        def _created_small2(n):
-            self.small2 = n
-            self.small2_uri = n.get_uri()
-        d.addCallback(_created_small2)
-
-        d.addCallback(lambda ign: self.root.set_node(u"loop", self.root))
-        return d
-
-    def check_is_healthy(self, cr, n, where, incomplete=False):
-        self.failUnless(ICheckResults.providedBy(cr), where)
-        self.failUnless(cr.is_healthy(), where)
-        self.failUnlessEqual(cr.get_storage_index(), n.get_storage_index(),
-                             where)
-        self.failUnlessEqual(cr.get_storage_index_string(),
-                             base32.b2a(n.get_storage_index()), where)
-        needs_rebalancing = bool( len(self.clients) < 10 )
-        if not incomplete:
-            self.failUnlessEqual(cr.needs_rebalancing(), needs_rebalancing, str((where, cr, cr.get_data())))
-        d = cr.get_data()
-        self.failUnlessEqual(d["count-shares-good"], 10, where)
-        self.failUnlessEqual(d["count-shares-needed"], 3, where)
-        self.failUnlessEqual(d["count-shares-expected"], 10, where)
-        if not incomplete:
-            self.failUnlessEqual(d["count-good-share-hosts"], len(self.clients), where)
-        self.failUnlessEqual(d["count-corrupt-shares"], 0, where)
-        self.failUnlessEqual(d["list-corrupt-shares"], [], where)
-        if not incomplete:
-            self.failUnlessEqual(sorted(d["servers-responding"]),
-                                 sorted([c.nodeid for c in self.clients]),
-                                 where)
-            self.failUnless("sharemap" in d, str((where, d)))
-            all_serverids = set()
-            for (shareid, serverids) in d["sharemap"].items():
-                all_serverids.update(serverids)
-            self.failUnlessEqual(sorted(all_serverids),
-                                 sorted([c.nodeid for c in self.clients]),
-                                 where)
-
-        self.failUnlessEqual(d["count-wrong-shares"], 0, where)
-        self.failUnlessEqual(d["count-recoverable-versions"], 1, where)
-        self.failUnlessEqual(d["count-unrecoverable-versions"], 0, where)
-
-
-    def check_and_repair_is_healthy(self, cr, n, where, incomplete=False):
-        self.failUnless(ICheckAndRepairResults.providedBy(cr), (where, cr))
-        self.failUnless(cr.get_pre_repair_results().is_healthy(), where)
-        self.check_is_healthy(cr.get_pre_repair_results(), n, where, incomplete)
-        self.failUnless(cr.get_post_repair_results().is_healthy(), where)
-        self.check_is_healthy(cr.get_post_repair_results(), n, where, incomplete)
-        self.failIf(cr.get_repair_attempted(), where)
-
-    def deep_check_is_healthy(self, cr, num_healthy, where):
-        self.failUnless(IDeepCheckResults.providedBy(cr))
-        self.failUnlessEqual(cr.get_counters()["count-objects-healthy"],
-                             num_healthy, where)
-
-    def deep_check_and_repair_is_healthy(self, cr, num_healthy, where):
-        self.failUnless(IDeepCheckAndRepairResults.providedBy(cr), where)
-        c = cr.get_counters()
-        self.failUnlessEqual(c["count-objects-healthy-pre-repair"],
-                             num_healthy, where)
-        self.failUnlessEqual(c["count-objects-healthy-post-repair"],
-                             num_healthy, where)
-        self.failUnlessEqual(c["count-repairs-attempted"], 0, where)
-
-    def test_good(self):
-        self.basedir = self.mktemp()
-        d = self.set_up_nodes()
-        d.addCallback(self.set_up_tree)
-        d.addCallback(self.do_stats)
-        d.addCallback(self.do_web_stream_manifest)
-        d.addCallback(self.do_web_stream_check)
-        d.addCallback(self.do_test_check_good)
-        d.addCallback(self.do_test_web_good)
-        d.addCallback(self.do_test_cli_good)
-        d.addErrback(self.explain_web_error)
-        d.addErrback(self.explain_error)
-        return d
-
-    def do_stats(self, ignored):
-        d = defer.succeed(None)
-        d.addCallback(lambda ign: self.root.start_deep_stats().when_done())
-        d.addCallback(self.check_stats_good)
-        return d
-
-    def check_stats_good(self, s):
-        self.failUnlessEqual(s["count-directories"], 1)
-        self.failUnlessEqual(s["count-files"], 4)
-        self.failUnlessEqual(s["count-immutable-files"], 1)
-        self.failUnlessEqual(s["count-literal-files"], 2)
-        self.failUnlessEqual(s["count-mutable-files"], 1)
-        # don't check directories: their size will vary
-        # s["largest-directory"]
-        # s["size-directories"]
-        self.failUnlessEqual(s["largest-directory-children"], 5)
-        self.failUnlessEqual(s["largest-immutable-file"], 13000)
-        # to re-use this function for both the local
-        # dirnode.start_deep_stats() and the webapi t=start-deep-stats, we
-        # coerce the result into a list of tuples. dirnode.start_deep_stats()
-        # returns a list of tuples, but JSON only knows about lists., so
-        # t=start-deep-stats returns a list of lists.
-        histogram = [tuple(stuff) for stuff in s["size-files-histogram"]]
-        self.failUnlessEqual(histogram, [(11, 31, 2),
-                                         (10001, 31622, 1),
-                                         ])
-        self.failUnlessEqual(s["size-immutable-files"], 13000)
-        self.failUnlessEqual(s["size-literal-files"], 48)
-
-    def do_web_stream_manifest(self, ignored):
-        d = self.web(self.root, method="POST", t="stream-manifest")
-        d.addCallback(lambda (output,url):
-                      self._check_streamed_manifest(output))
-        return d
-
-    def _check_streamed_manifest(self, output):
-        units = list(self.parse_streamed_json(output))
-        files = [u for u in units if u["type"] in ("file", "directory")]
-        assert units[-1]["type"] == "stats"
-        stats = units[-1]["stats"]
-        self.failUnlessEqual(len(files), 5)
-        # [root,mutable,large] are distributed, [small,small2] are not
-        self.failUnlessEqual(len([f for f in files
-                                  if f["verifycap"] is not None]), 3)
-        self.failUnlessEqual(len([f for f in files
-                                  if f["verifycap"] is None]), 2)
-        self.failUnlessEqual(len([f for f in files
-                                  if f["repaircap"] is not None]), 3)
-        self.failUnlessEqual(len([f for f in files
-                                  if f["repaircap"] is None]), 2)
-        self.failUnlessEqual(len([f for f in files
-                                  if f["storage-index"] is not None]), 3)
-        self.failUnlessEqual(len([f for f in files
-                                  if f["storage-index"] is None]), 2)
-        # make sure that a mutable file has filecap==repaircap!=verifycap
-        mutable = [f for f in files
-                   if f["cap"] is not None
-                   and f["cap"].startswith("URI:SSK:")][0]
-        self.failUnlessEqual(mutable["cap"], self.mutable_uri)
-        self.failIfEqual(mutable["cap"], mutable["verifycap"])
-        self.failUnlessEqual(mutable["cap"], mutable["repaircap"])
-        # for immutable file, verifycap==repaircap!=filecap
-        large = [f for f in files
-                   if f["cap"] is not None
-                   and f["cap"].startswith("URI:CHK:")][0]
-        self.failUnlessEqual(large["cap"], self.large_uri)
-        self.failIfEqual(large["cap"], large["verifycap"])
-        self.failUnlessEqual(large["verifycap"], large["repaircap"])
-        self.check_stats_good(stats)
-
-    def do_web_stream_check(self, ignored):
-        return
-        d = self.web(self.root, t="stream-deep-check")
-        def _check(res):
-            units = list(self.parse_streamed_json(res))
-            files = [u for u in units if u["type"] in ("file", "directory")]
-            assert units[-1]["type"] == "stats"
-            stats = units[-1]["stats"]
-            # ...
-        d.addCallback(_check)
-        return d
-
-    def do_test_check_good(self, ignored):
-        d = defer.succeed(None)
-        # check the individual items
-        d.addCallback(lambda ign: self.root.check(Monitor()))
-        d.addCallback(self.check_is_healthy, self.root, "root")
-        d.addCallback(lambda ign: self.mutable.check(Monitor()))
-        d.addCallback(self.check_is_healthy, self.mutable, "mutable")
-        d.addCallback(lambda ign: self.large.check(Monitor()))
-        d.addCallback(self.check_is_healthy, self.large, "large")
-        d.addCallback(lambda ign: self.small.check(Monitor()))
-        d.addCallback(self.failUnlessEqual, None, "small")
-        d.addCallback(lambda ign: self.small2.check(Monitor()))
-        d.addCallback(self.failUnlessEqual, None, "small2")
-
-        # and again with verify=True
-        d.addCallback(lambda ign: self.root.check(Monitor(), verify=True))
-        d.addCallback(self.check_is_healthy, self.root, "root")
-        d.addCallback(lambda ign: self.mutable.check(Monitor(), verify=True))
-        d.addCallback(self.check_is_healthy, self.mutable, "mutable")
-        d.addCallback(lambda ign: self.large.check(Monitor(), verify=True))
-        d.addCallback(self.check_is_healthy, self.large, "large", incomplete=True)
-        d.addCallback(lambda ign: self.small.check(Monitor(), verify=True))
-        d.addCallback(self.failUnlessEqual, None, "small")
-        d.addCallback(lambda ign: self.small2.check(Monitor(), verify=True))
-        d.addCallback(self.failUnlessEqual, None, "small2")
-
-        # and check_and_repair(), which should be a nop
-        d.addCallback(lambda ign: self.root.check_and_repair(Monitor()))
-        d.addCallback(self.check_and_repair_is_healthy, self.root, "root")
-        d.addCallback(lambda ign: self.mutable.check_and_repair(Monitor()))
-        d.addCallback(self.check_and_repair_is_healthy, self.mutable, "mutable")
-        #TODO d.addCallback(lambda ign: self.large.check_and_repair(Monitor()))
-        #TODO d.addCallback(self.check_and_repair_is_healthy, self.large, "large")
-        #TODO d.addCallback(lambda ign: self.small.check_and_repair(Monitor()))
-        #TODO d.addCallback(self.failUnlessEqual, None, "small")
-        #TODO d.addCallback(lambda ign: self.small2.check_and_repair(Monitor()))
-        #TODO d.addCallback(self.failUnlessEqual, None, "small2")
-
-        # check_and_repair(verify=True)
-        d.addCallback(lambda ign: self.root.check_and_repair(Monitor(), verify=True))
-        d.addCallback(self.check_and_repair_is_healthy, self.root, "root")
-        d.addCallback(lambda ign: self.mutable.check_and_repair(Monitor(), verify=True))
-        d.addCallback(self.check_and_repair_is_healthy, self.mutable, "mutable")
-        #TODO d.addCallback(lambda ign: self.large.check_and_repair(Monitor(), verify=True))
-        #TODO d.addCallback(self.check_and_repair_is_healthy, self.large, "large",
-        #TODO               incomplete=True)
-        #TODO d.addCallback(lambda ign: self.small.check_and_repair(Monitor(), verify=True))
-        #TODO d.addCallback(self.failUnlessEqual, None, "small")
-        #TODO d.addCallback(lambda ign: self.small2.check_and_repair(Monitor(), verify=True))
-        #TODO d.addCallback(self.failUnlessEqual, None, "small2")
-
-
-        # now deep-check the root, with various verify= and repair= options
-        d.addCallback(lambda ign:
-                      self.root.start_deep_check().when_done())
-        d.addCallback(self.deep_check_is_healthy, 3, "root")
-        d.addCallback(lambda ign:
-                      self.root.start_deep_check(verify=True).when_done())
-        d.addCallback(self.deep_check_is_healthy, 3, "root")
-        d.addCallback(lambda ign:
-                      self.root.start_deep_check_and_repair().when_done())
-        d.addCallback(self.deep_check_and_repair_is_healthy, 3, "root")
-        d.addCallback(lambda ign:
-                      self.root.start_deep_check_and_repair(verify=True).when_done())
-        d.addCallback(self.deep_check_and_repair_is_healthy, 3, "root")
-
-        # and finally, start a deep-check, but then cancel it.
-        d.addCallback(lambda ign: self.root.start_deep_check())
-        def _checking(monitor):
-            monitor.cancel()
-            d = monitor.when_done()
-            # this should fire as soon as the next dirnode.list finishes.
-            # TODO: add a counter to measure how many list() calls are made,
-            # assert that no more than one gets to run before the cancel()
-            # takes effect.
-            def _finished_normally(res):
-                self.fail("this was supposed to fail, not finish normally")
-            def _cancelled(f):
-                f.trap(OperationCancelledError)
-            d.addCallbacks(_finished_normally, _cancelled)
-            return d
-        d.addCallback(_checking)
-
-        return d
-
-    def json_check_is_healthy(self, data, n, where, incomplete=False):
-
-        self.failUnlessEqual(data["storage-index"],
-                             base32.b2a(n.get_storage_index()), where)
-        self.failUnless("summary" in data, (where, data))
-        self.failUnlessEqual(data["summary"].lower(), "healthy",
-                             "%s: '%s'" % (where, data["summary"]))
-        r = data["results"]
-        self.failUnlessEqual(r["healthy"], True, where)
-        needs_rebalancing = bool( len(self.clients) < 10 )
-        if not incomplete:
-            self.failUnlessEqual(r["needs-rebalancing"], needs_rebalancing, where)
-        self.failUnlessEqual(r["count-shares-good"], 10, where)
-        self.failUnlessEqual(r["count-shares-needed"], 3, where)
-        self.failUnlessEqual(r["count-shares-expected"], 10, where)
-        if not incomplete:
-            self.failUnlessEqual(r["count-good-share-hosts"], len(self.clients), where)
-        self.failUnlessEqual(r["count-corrupt-shares"], 0, where)
-        self.failUnlessEqual(r["list-corrupt-shares"], [], where)
-        if not incomplete:
-            self.failUnlessEqual(sorted(r["servers-responding"]),
-                                 sorted([idlib.nodeid_b2a(c.nodeid)
-                                         for c in self.clients]), where)
-            self.failUnless("sharemap" in r, where)
-            all_serverids = set()
-            for (shareid, serverids_s) in r["sharemap"].items():
-                all_serverids.update(serverids_s)
-            self.failUnlessEqual(sorted(all_serverids),
-                                 sorted([idlib.nodeid_b2a(c.nodeid)
-                                         for c in self.clients]), where)
-        self.failUnlessEqual(r["count-wrong-shares"], 0, where)
-        self.failUnlessEqual(r["count-recoverable-versions"], 1, where)
-        self.failUnlessEqual(r["count-unrecoverable-versions"], 0, where)
-
-    def json_check_and_repair_is_healthy(self, data, n, where, incomplete=False):
-        self.failUnlessEqual(data["storage-index"],
-                             base32.b2a(n.get_storage_index()), where)
-        self.failUnlessEqual(data["repair-attempted"], False, where)
-        self.json_check_is_healthy(data["pre-repair-results"],
-                                   n, where, incomplete)
-        self.json_check_is_healthy(data["post-repair-results"],
-                                   n, where, incomplete)
-
-    def json_full_deepcheck_is_healthy(self, data, n, where):
-        self.failUnlessEqual(data["root-storage-index"],
-                             base32.b2a(n.get_storage_index()), where)
-        self.failUnlessEqual(data["count-objects-checked"], 3, where)
-        self.failUnlessEqual(data["count-objects-healthy"], 3, where)
-        self.failUnlessEqual(data["count-objects-unhealthy"], 0, where)
-        self.failUnlessEqual(data["count-corrupt-shares"], 0, where)
-        self.failUnlessEqual(data["list-corrupt-shares"], [], where)
-        self.failUnlessEqual(data["list-unhealthy-files"], [], where)
-        self.json_check_stats_good(data["stats"], where)
-
-    def json_full_deepcheck_and_repair_is_healthy(self, data, n, where):
-        self.failUnlessEqual(data["root-storage-index"],
-                             base32.b2a(n.get_storage_index()), where)
-        self.failUnlessEqual(data["count-objects-checked"], 3, where)
-
-        self.failUnlessEqual(data["count-objects-healthy-pre-repair"], 3, where)
-        self.failUnlessEqual(data["count-objects-unhealthy-pre-repair"], 0, where)
-        self.failUnlessEqual(data["count-corrupt-shares-pre-repair"], 0, where)
-
-        self.failUnlessEqual(data["count-objects-healthy-post-repair"], 3, where)
-        self.failUnlessEqual(data["count-objects-unhealthy-post-repair"], 0, where)
-        self.failUnlessEqual(data["count-corrupt-shares-post-repair"], 0, where)
-
-        self.failUnlessEqual(data["list-corrupt-shares"], [], where)
-        self.failUnlessEqual(data["list-remaining-corrupt-shares"], [], where)
-        self.failUnlessEqual(data["list-unhealthy-files"], [], where)
-
-        self.failUnlessEqual(data["count-repairs-attempted"], 0, where)
-        self.failUnlessEqual(data["count-repairs-successful"], 0, where)
-        self.failUnlessEqual(data["count-repairs-unsuccessful"], 0, where)
-
-
-    def json_check_lit(self, data, n, where):
-        self.failUnlessEqual(data["storage-index"], "", where)
-        self.failUnlessEqual(data["results"]["healthy"], True, where)
-
-    def json_check_stats_good(self, data, where):
-        self.check_stats_good(data)
-
-    def do_test_web_good(self, ignored):
-        d = defer.succeed(None)
-
-        # stats
-        d.addCallback(lambda ign:
-                      self.slow_web(self.root,
-                                    t="start-deep-stats", output="json"))
-        d.addCallback(self.json_check_stats_good, "deep-stats")
-
-        # check, no verify
-        d.addCallback(lambda ign: self.web_json(self.root, t="check"))
-        d.addCallback(self.json_check_is_healthy, self.root, "root")
-        d.addCallback(lambda ign: self.web_json(self.mutable, t="check"))
-        d.addCallback(self.json_check_is_healthy, self.mutable, "mutable")
-        d.addCallback(lambda ign: self.web_json(self.large, t="check"))
-        d.addCallback(self.json_check_is_healthy, self.large, "large")
-        d.addCallback(lambda ign: self.web_json(self.small, t="check"))
-        d.addCallback(self.json_check_lit, self.small, "small")
-        d.addCallback(lambda ign: self.web_json(self.small2, t="check"))
-        d.addCallback(self.json_check_lit, self.small2, "small2")
-
-        # check and verify
-        d.addCallback(lambda ign:
-                      self.web_json(self.root, t="check", verify="true"))
-        d.addCallback(self.json_check_is_healthy, self.root, "root+v")
-        d.addCallback(lambda ign:
-                      self.web_json(self.mutable, t="check", verify="true"))
-        d.addCallback(self.json_check_is_healthy, self.mutable, "mutable+v")
-        d.addCallback(lambda ign:
-                      self.web_json(self.large, t="check", verify="true"))
-        d.addCallback(self.json_check_is_healthy, self.large, "large+v",
-                      incomplete=True)
-        d.addCallback(lambda ign:
-                      self.web_json(self.small, t="check", verify="true"))
-        d.addCallback(self.json_check_lit, self.small, "small+v")
-        d.addCallback(lambda ign:
-                      self.web_json(self.small2, t="check", verify="true"))
-        d.addCallback(self.json_check_lit, self.small2, "small2+v")
-
-        # check and repair, no verify
-        d.addCallback(lambda ign:
-                      self.web_json(self.root, t="check", repair="true"))
-        d.addCallback(self.json_check_and_repair_is_healthy, self.root, "root+r")
-        d.addCallback(lambda ign:
-                      self.web_json(self.mutable, t="check", repair="true"))
-        d.addCallback(self.json_check_and_repair_is_healthy, self.mutable, "mutable+r")
-        d.addCallback(lambda ign:
-                      self.web_json(self.large, t="check", repair="true"))
-        d.addCallback(self.json_check_and_repair_is_healthy, self.large, "large+r")
-        d.addCallback(lambda ign:
-                      self.web_json(self.small, t="check", repair="true"))
-        d.addCallback(self.json_check_lit, self.small, "small+r")
-        d.addCallback(lambda ign:
-                      self.web_json(self.small2, t="check", repair="true"))
-        d.addCallback(self.json_check_lit, self.small2, "small2+r")
-
-        # check+verify+repair
-        d.addCallback(lambda ign:
-                      self.web_json(self.root, t="check", repair="true", verify="true"))
-        d.addCallback(self.json_check_and_repair_is_healthy, self.root, "root+vr")
-        d.addCallback(lambda ign:
-                      self.web_json(self.mutable, t="check", repair="true", verify="true"))
-        d.addCallback(self.json_check_and_repair_is_healthy, self.mutable, "mutable+vr")
-        d.addCallback(lambda ign:
-                      self.web_json(self.large, t="check", repair="true", verify="true"))
-        d.addCallback(self.json_check_and_repair_is_healthy, self.large, "large+vr", incomplete=True)
-        d.addCallback(lambda ign:
-                      self.web_json(self.small, t="check", repair="true", verify="true"))
-        d.addCallback(self.json_check_lit, self.small, "small+vr")
-        d.addCallback(lambda ign:
-                      self.web_json(self.small2, t="check", repair="true", verify="true"))
-        d.addCallback(self.json_check_lit, self.small2, "small2+vr")
-
-        # now run a deep-check, with various verify= and repair= flags
-        d.addCallback(lambda ign:
-                      self.slow_web(self.root, t="start-deep-check", output="json"))
-        d.addCallback(self.json_full_deepcheck_is_healthy, self.root, "root+d")
-        d.addCallback(lambda ign:
-                      self.slow_web(self.root, t="start-deep-check", verify="true",
-                                    output="json"))
-        d.addCallback(self.json_full_deepcheck_is_healthy, self.root, "root+dv")
-        d.addCallback(lambda ign:
-                      self.slow_web(self.root, t="start-deep-check", repair="true",
-                                    output="json"))
-        d.addCallback(self.json_full_deepcheck_and_repair_is_healthy, self.root, "root+dr")
-        d.addCallback(lambda ign:
-                      self.slow_web(self.root, t="start-deep-check", verify="true", repair="true", output="json"))
-        d.addCallback(self.json_full_deepcheck_and_repair_is_healthy, self.root, "root+dvr")
-
-        # now look at t=info
-        d.addCallback(lambda ign: self.web(self.root, t="info"))
-        # TODO: examine the output
-        d.addCallback(lambda ign: self.web(self.mutable, t="info"))
-        d.addCallback(lambda ign: self.web(self.large, t="info"))
-        d.addCallback(lambda ign: self.web(self.small, t="info"))
-        d.addCallback(lambda ign: self.web(self.small2, t="info"))
-
-        return d
-
-    def _run_cli(self, argv, stdin=""):
-        #print "CLI:", argv
-        stdout, stderr = StringIO(), StringIO()
-        d = threads.deferToThread(runner.runner, argv, run_by_human=False,
-                                  stdin=StringIO(stdin),
-                                  stdout=stdout, stderr=stderr)
-        def _done(res):
-            return stdout.getvalue(), stderr.getvalue()
-        d.addCallback(_done)
-        return d
-
-    def do_test_cli_good(self, ignored):
-        d = defer.succeed(None)
-        d.addCallback(lambda ign: self.do_cli_manifest_stream1())
-        d.addCallback(lambda ign: self.do_cli_manifest_stream2())
-        d.addCallback(lambda ign: self.do_cli_manifest_stream3())
-        d.addCallback(lambda ign: self.do_cli_manifest_stream4())
-        d.addCallback(lambda ign: self.do_cli_manifest_stream5())
-        d.addCallback(lambda ign: self.do_cli_stats1())
-        d.addCallback(lambda ign: self.do_cli_stats2())
-        return d
-
-    def _check_manifest_storage_index(self, out):
-        lines = [l for l in out.split("\n") if l]
-        self.failUnlessEqual(len(lines), 3)
-        self.failUnless(base32.b2a(self.root.get_storage_index()) in lines)
-        self.failUnless(base32.b2a(self.mutable.get_storage_index()) in lines)
-        self.failUnless(base32.b2a(self.large.get_storage_index()) in lines)
-
-    def do_cli_manifest_stream1(self):
-        basedir = self.getdir("client0")
-        d = self._run_cli(["manifest",
-                           "--node-directory", basedir,
-                           self.root_uri])
-        def _check((out,err)):
-            self.failUnlessEqual(err, "")
-            lines = [l for l in out.split("\n") if l]
-            self.failUnlessEqual(len(lines), 5)
-            caps = {}
-            for l in lines:
-                try:
-                    cap, path = l.split(None, 1)
-                except ValueError:
-                    cap = l.strip()
-                    path = ""
-                caps[cap] = path
-            self.failUnless(self.root.get_uri() in caps)
-            self.failUnlessEqual(caps[self.root.get_uri()], "")
-            self.failUnlessEqual(caps[self.mutable.get_uri()], "mutable")
-            self.failUnlessEqual(caps[self.large.get_uri()], "large")
-            self.failUnlessEqual(caps[self.small.get_uri()], "small")
-            self.failUnlessEqual(caps[self.small2.get_uri()], "small2")
-        d.addCallback(_check)
-        return d
-
-    def do_cli_manifest_stream2(self):
-        basedir = self.getdir("client0")
-        d = self._run_cli(["manifest",
-                           "--node-directory", basedir,
-                           "--raw",
-                           self.root_uri])
-        def _check((out,err)):
-            self.failUnlessEqual(err, "")
-            # this should be the same as the POST t=stream-manifest output
-            self._check_streamed_manifest(out)
-        d.addCallback(_check)
-        return d
-
-    def do_cli_manifest_stream3(self):
-        basedir = self.getdir("client0")
-        d = self._run_cli(["manifest",
-                           "--node-directory", basedir,
-                           "--storage-index",
-                           self.root_uri])
-        def _check((out,err)):
-            self.failUnlessEqual(err, "")
-            self._check_manifest_storage_index(out)
-        d.addCallback(_check)
-        return d
-
-    def do_cli_manifest_stream4(self):
-        basedir = self.getdir("client0")
-        d = self._run_cli(["manifest",
-                           "--node-directory", basedir,
-                           "--verify-cap",
-                           self.root_uri])
-        def _check((out,err)):
-            self.failUnlessEqual(err, "")
-            lines = [l for l in out.split("\n") if l]
-            self.failUnlessEqual(len(lines), 3)
-            self.failUnless(self.root.get_verify_cap().to_string() in lines)
-            self.failUnless(self.mutable.get_verify_cap().to_string() in lines)
-            self.failUnless(self.large.get_verify_cap().to_string() in lines)
-        d.addCallback(_check)
-        return d
-
-    def do_cli_manifest_stream5(self):
-        basedir = self.getdir("client0")
-        d = self._run_cli(["manifest",
-                           "--node-directory", basedir,
-                           "--repair-cap",
-                           self.root_uri])
-        def _check((out,err)):
-            self.failUnlessEqual(err, "")
-            lines = [l for l in out.split("\n") if l]
-            self.failUnlessEqual(len(lines), 3)
-            self.failUnless(self.root.get_repair_cap().to_string() in lines)
-            self.failUnless(self.mutable.get_repair_cap().to_string() in lines)
-            self.failUnless(self.large.get_repair_cap().to_string() in lines)
-        d.addCallback(_check)
-        return d
-
-    def do_cli_stats1(self):
-        basedir = self.getdir("client0")
-        d = self._run_cli(["stats",
-                           "--node-directory", basedir,
-                           self.root_uri])
-        def _check3((out,err)):
-            lines = [l.strip() for l in out.split("\n") if l]
-            self.failUnless("count-immutable-files: 1" in lines)
-            self.failUnless("count-mutable-files: 1" in lines)
-            self.failUnless("count-literal-files: 2" in lines)
-            self.failUnless("count-files: 4" in lines)
-            self.failUnless("count-directories: 1" in lines)
-            self.failUnless("size-immutable-files: 13000    (13.00 kB, 12.70 kiB)" in lines, lines)
-            self.failUnless("size-literal-files: 48" in lines)
-            self.failUnless("   11-31    : 2    (31 B, 31 B)".strip() in lines)
-            self.failUnless("10001-31622 : 1    (31.62 kB, 30.88 kiB)".strip() in lines)
-        d.addCallback(_check3)
-        return d
-
-    def do_cli_stats2(self):
-        basedir = self.getdir("client0")
-        d = self._run_cli(["stats",
-                           "--node-directory", basedir,
-                           "--raw",
-                           self.root_uri])
-        def _check4((out,err)):
-            data = simplejson.loads(out)
-            self.failUnlessEqual(data["count-immutable-files"], 1)
-            self.failUnlessEqual(data["count-immutable-files"], 1)
-            self.failUnlessEqual(data["count-mutable-files"], 1)
-            self.failUnlessEqual(data["count-literal-files"], 2)
-            self.failUnlessEqual(data["count-files"], 4)
-            self.failUnlessEqual(data["count-directories"], 1)
-            self.failUnlessEqual(data["size-immutable-files"], 13000)
-            self.failUnlessEqual(data["size-literal-files"], 48)
-            self.failUnless([11,31,2] in data["size-files-histogram"])
-            self.failUnless([10001,31622,1] in data["size-files-histogram"])
-        d.addCallback(_check4)
-        return d
-
-
-class DeepCheckWebBad(DeepCheckBase, unittest.TestCase):
-
-    def test_bad(self):
-        self.basedir = self.mktemp()
-        d = self.set_up_nodes()
-        d.addCallback(self.set_up_damaged_tree)
-        d.addCallback(self.do_check)
-        d.addCallback(self.do_deepcheck)
-        d.addCallback(self.do_test_web_bad)
-        d.addErrback(self.explain_web_error)
-        d.addErrback(self.explain_error)
-        return d
-
-
-
-    def set_up_damaged_tree(self, ignored):
-        # 6.4s
-
-        # root
-        #   mutable-good
-        #   mutable-missing-shares
-        #   mutable-corrupt-shares
-        #   mutable-unrecoverable
-        #   large-good
-        #   large-missing-shares
-        #   large-corrupt-shares
-        #   large-unrecoverable
-
-        self.nodes = {}
-
-        c0 = self.clients[0]
-        d = c0.create_empty_dirnode()
-        def _created_root(n):
-            self.root = n
-            self.root_uri = n.get_uri()
-        d.addCallback(_created_root)
-        d.addCallback(self.create_mangled, "mutable-good")
-        d.addCallback(self.create_mangled, "mutable-missing-shares")
-        d.addCallback(self.create_mangled, "mutable-corrupt-shares")
-        d.addCallback(self.create_mangled, "mutable-unrecoverable")
-        d.addCallback(self.create_mangled, "large-good")
-        d.addCallback(self.create_mangled, "large-missing-shares")
-        d.addCallback(self.create_mangled, "large-corrupt-shares")
-        d.addCallback(self.create_mangled, "large-unrecoverable")
-
-        return d
-
-
-    def create_mangled(self, ignored, name):
-        nodetype, mangletype = name.split("-", 1)
-        if nodetype == "mutable":
-            d = self.clients[0].create_mutable_file("mutable file contents")
-            d.addCallback(lambda n: self.root.set_node(unicode(name), n))
-        elif nodetype == "large":
-            large = upload.Data("Lots of data\n" * 1000 + name + "\n", None)
-            d = self.root.add_file(unicode(name), large)
-        elif nodetype == "small":
-            small = upload.Data("Small enough for a LIT", None)
-            d = self.root.add_file(unicode(name), small)
-
-        def _stash_node(node):
-            self.nodes[name] = node
-            return node
-        d.addCallback(_stash_node)
-
-        if mangletype == "good":
-            pass
-        elif mangletype == "missing-shares":
-            d.addCallback(self._delete_some_shares)
-        elif mangletype == "corrupt-shares":
-            d.addCallback(self._corrupt_some_shares)
-        else:
-            assert mangletype == "unrecoverable"
-            d.addCallback(self._delete_most_shares)
-
-        return d
-
-    def _run_cli(self, argv):
-        stdout, stderr = StringIO(), StringIO()
-        # this can only do synchronous operations
-        assert argv[0] == "debug"
-        runner.runner(argv, run_by_human=False, stdout=stdout, stderr=stderr)
-        return stdout.getvalue()
-
-    def _find_shares(self, node):
-        si = node.get_storage_index()
-        out = self._run_cli(["debug", "find-shares", base32.b2a(si)] +
-                            [c.basedir for c in self.clients])
-        files = out.split("\n")
-        return [f for f in files if f]
-
-    def _delete_some_shares(self, node):
-        shares = self._find_shares(node)
-        os.unlink(shares[0])
-        os.unlink(shares[1])
-
-    def _corrupt_some_shares(self, node):
-        shares = self._find_shares(node)
-        self._run_cli(["debug", "corrupt-share", shares[0]])
-        self._run_cli(["debug", "corrupt-share", shares[1]])
-
-    def _delete_most_shares(self, node):
-        shares = self._find_shares(node)
-        for share in shares[1:]:
-            os.unlink(share)
-
-
-    def check_is_healthy(self, cr, where):
-        try:
-            self.failUnless(ICheckResults.providedBy(cr), (cr, type(cr), where))
-            self.failUnless(cr.is_healthy(), (cr.get_report(), cr.is_healthy(), cr.get_summary(), where))
-            self.failUnless(cr.is_recoverable(), where)
-            d = cr.get_data()
-            self.failUnlessEqual(d["count-recoverable-versions"], 1, where)
-            self.failUnlessEqual(d["count-unrecoverable-versions"], 0, where)
-            return cr
-        except Exception, le:
-            le.args = tuple(le.args + (where,))
-            raise
-
-    def check_is_missing_shares(self, cr, where):
-        self.failUnless(ICheckResults.providedBy(cr), where)
-        self.failIf(cr.is_healthy(), where)
-        self.failUnless(cr.is_recoverable(), where)
-        d = cr.get_data()
-        self.failUnlessEqual(d["count-recoverable-versions"], 1, where)
-        self.failUnlessEqual(d["count-unrecoverable-versions"], 0, where)
-        return cr
-
-    def check_has_corrupt_shares(self, cr, where):
-        # by "corrupt-shares" we mean the file is still recoverable
-        self.failUnless(ICheckResults.providedBy(cr), where)
-        d = cr.get_data()
-        self.failIf(cr.is_healthy(), (where, cr))
-        self.failUnless(cr.is_recoverable(), where)
-        d = cr.get_data()
-        self.failUnless(d["count-shares-good"] < 10, where)
-        self.failUnless(d["count-corrupt-shares"], where)
-        self.failUnless(d["list-corrupt-shares"], where)
-        return cr
-
-    def check_is_unrecoverable(self, cr, where):
-        self.failUnless(ICheckResults.providedBy(cr), where)
-        d = cr.get_data()
-        self.failIf(cr.is_healthy(), where)
-        self.failIf(cr.is_recoverable(), where)
-        self.failUnless(d["count-shares-good"] < d["count-shares-needed"], (d["count-shares-good"], d["count-shares-needed"], where))
-        self.failUnlessEqual(d["count-recoverable-versions"], 0, where)
-        self.failUnlessEqual(d["count-unrecoverable-versions"], 1, where)
-        return cr
-
-    def do_check(self, ignored):
-        d = defer.succeed(None)
-
-        # check the individual items, without verification. This will not
-        # detect corrupt shares.
-        def _check(which, checker):
-            d = self.nodes[which].check(Monitor())
-            d.addCallback(checker, which + "--check")
-            return d
-
-        d.addCallback(lambda ign: _check("mutable-good", self.check_is_healthy))
-        d.addCallback(lambda ign: _check("mutable-missing-shares",
-                                         self.check_is_missing_shares))
-        d.addCallback(lambda ign: _check("mutable-corrupt-shares",
-                                         self.check_is_healthy))
-        d.addCallback(lambda ign: _check("mutable-unrecoverable",
-                                         self.check_is_unrecoverable))
-        d.addCallback(lambda ign: _check("large-good", self.check_is_healthy))
-        d.addCallback(lambda ign: _check("large-missing-shares",
-                                         self.check_is_missing_shares))
-        d.addCallback(lambda ign: _check("large-corrupt-shares",
-                                         self.check_is_healthy))
-        d.addCallback(lambda ign: _check("large-unrecoverable",
-                                         self.check_is_unrecoverable))
-
-        # and again with verify=True, which *does* detect corrupt shares.
-        def _checkv(which, checker):
-            d = self.nodes[which].check(Monitor(), verify=True)
-            d.addCallback(checker, which + "--check-and-verify")
-            return d
-
-        d.addCallback(lambda ign: _checkv("mutable-good", self.check_is_healthy))
-        d.addCallback(lambda ign: _checkv("mutable-missing-shares",
-                                         self.check_is_missing_shares))
-        d.addCallback(lambda ign: _checkv("mutable-corrupt-shares",
-                                         self.check_has_corrupt_shares))
-        d.addCallback(lambda ign: _checkv("mutable-unrecoverable",
-                                         self.check_is_unrecoverable))
-        d.addCallback(lambda ign: _checkv("large-good", self.check_is_healthy))
-        d.addCallback(lambda ign: _checkv("large-missing-shares", self.check_is_missing_shares))
-        d.addCallback(lambda ign: _checkv("large-corrupt-shares", self.check_has_corrupt_shares))
-        d.addCallback(lambda ign: _checkv("large-unrecoverable",
-                                         self.check_is_unrecoverable))
-
-        return d
-
-    def do_deepcheck(self, ignored):
-        d = defer.succeed(None)
-
-        # now deep-check the root, with various verify= and repair= options
-        d.addCallback(lambda ign:
-                      self.root.start_deep_check().when_done())
-        def _check1(cr):
-            self.failUnless(IDeepCheckResults.providedBy(cr))
-            c = cr.get_counters()
-            self.failUnlessEqual(c["count-objects-checked"], 9)
-            self.failUnlessEqual(c["count-objects-healthy"], 5)
-            self.failUnlessEqual(c["count-objects-unhealthy"], 4)
-            self.failUnlessEqual(c["count-objects-unrecoverable"], 2)
-        d.addCallback(_check1)
-
-        d.addCallback(lambda ign:
-                      self.root.start_deep_check(verify=True).when_done())
-        def _check2(cr):
-            self.failUnless(IDeepCheckResults.providedBy(cr))
-            c = cr.get_counters()
-            self.failUnlessEqual(c["count-objects-checked"], 9)
-            self.failUnlessEqual(c["count-objects-healthy"], 3)
-            self.failUnlessEqual(c["count-objects-unhealthy"], 6)
-            self.failUnlessEqual(c["count-objects-healthy"], 3) # root, mutable good, large good
-            self.failUnlessEqual(c["count-objects-unrecoverable"], 2) # mutable unrecoverable, large unrecoverable
-        d.addCallback(_check2)
-
-        return d
-
-    def json_is_healthy(self, data, where):
-        r = data["results"]
-        self.failUnless(r["healthy"], where)
-        self.failUnless(r["recoverable"], where)
-        self.failUnlessEqual(r["count-recoverable-versions"], 1, where)
-        self.failUnlessEqual(r["count-unrecoverable-versions"], 0, where)
-
-    def json_is_missing_shares(self, data, where):
-        r = data["results"]
-        self.failIf(r["healthy"], where)
-        self.failUnless(r["recoverable"], where)
-        self.failUnlessEqual(r["count-recoverable-versions"], 1, where)
-        self.failUnlessEqual(r["count-unrecoverable-versions"], 0, where)
-
-    def json_has_corrupt_shares(self, data, where):
-        # by "corrupt-shares" we mean the file is still recoverable
-        r = data["results"]
-        self.failIf(r["healthy"], where)
-        self.failUnless(r["recoverable"], where)
-        self.failUnless(r["count-shares-good"] < 10, where)
-        self.failUnless(r["count-corrupt-shares"], where)
-        self.failUnless(r["list-corrupt-shares"], where)
-
-    def json_is_unrecoverable(self, data, where):
-        r = data["results"]
-        self.failIf(r["healthy"], where)
-        self.failIf(r["recoverable"], where)
-        self.failUnless(r["count-shares-good"] < r["count-shares-needed"],
-                        where)
-        self.failUnlessEqual(r["count-recoverable-versions"], 0, where)
-        self.failUnlessEqual(r["count-unrecoverable-versions"], 1, where)
-
-    def do_test_web_bad(self, ignored):
-        d = defer.succeed(None)
-
-        # check, no verify
-        def _check(which, checker):
-            d = self.web_json(self.nodes[which], t="check")
-            d.addCallback(checker, which + "--webcheck")
-            return d
-
-        d.addCallback(lambda ign: _check("mutable-good",
-                                         self.json_is_healthy))
-        d.addCallback(lambda ign: _check("mutable-missing-shares",
-                                         self.json_is_missing_shares))
-        d.addCallback(lambda ign: _check("mutable-corrupt-shares",
-                                         self.json_is_healthy))
-        d.addCallback(lambda ign: _check("mutable-unrecoverable",
-                                         self.json_is_unrecoverable))
-        d.addCallback(lambda ign: _check("large-good",
-                                         self.json_is_healthy))
-        d.addCallback(lambda ign: _check("large-missing-shares",
-                                         self.json_is_missing_shares))
-        d.addCallback(lambda ign: _check("large-corrupt-shares",
-                                         self.json_is_healthy))
-        d.addCallback(lambda ign: _check("large-unrecoverable",
-                                         self.json_is_unrecoverable))
-
-        # check and verify
-        def _checkv(which, checker):
-            d = self.web_json(self.nodes[which], t="check", verify="true")
-            d.addCallback(checker, which + "--webcheck-and-verify")
-            return d
-
-        d.addCallback(lambda ign: _checkv("mutable-good",
-                                          self.json_is_healthy))
-        d.addCallback(lambda ign: _checkv("mutable-missing-shares",
-                                         self.json_is_missing_shares))
-        d.addCallback(lambda ign: _checkv("mutable-corrupt-shares",
-                                         self.json_has_corrupt_shares))
-        d.addCallback(lambda ign: _checkv("mutable-unrecoverable",
-                                         self.json_is_unrecoverable))
-        d.addCallback(lambda ign: _checkv("large-good",
-                                          self.json_is_healthy))
-        d.addCallback(lambda ign: _checkv("large-missing-shares", self.json_is_missing_shares))
-        d.addCallback(lambda ign: _checkv("large-corrupt-shares", self.json_has_corrupt_shares))
-        d.addCallback(lambda ign: _checkv("large-unrecoverable",
-                                         self.json_is_unrecoverable))
-
-        return d