From: Brian Warner Date: Mon, 29 Aug 2011 07:27:17 +0000 (-0700) Subject: test_mutable.Update: only upload the files needed for each test. refs #1500 X-Git-Tag: allmydata-tahoe-1.9.0a2~69 X-Git-Url: https://git.rkrishnan.org/%5B/frontends/flags/%22file:/%22news.html/?a=commitdiff_plain;h=980eb778c1f3d40ec81f87c40ab9280eb0a25834;p=tahoe-lafs%2Ftahoe-lafs.git test_mutable.Update: only upload the files needed for each test. refs #1500 This first step shaves 15% off the runtime: from 139s to 119s on my laptop. It also fixes a couple of places where a Deferred was being dropped, which would cause two tests to run in parallel and also confuse error reporting. --- diff --git a/src/allmydata/test/test_mutable.py b/src/allmydata/test/test_mutable.py index 6a4af6c0..147f7de5 100644 --- a/src/allmydata/test/test_mutable.py +++ b/src/allmydata/test/test_mutable.py @@ -3361,58 +3361,64 @@ class Update(GridTestMixin, unittest.TestCase, testutil.ShouldFailMixin): self.nm = self.c.nodemaker self.data = "testdata " * 100000 # about 900 KiB; MDMF self.small_data = "test data" * 10 # about 90 B; SDMF - return self.do_upload() - def do_upload(self): - d1 = self.nm.create_mutable_file(MutableData(self.data), - version=MDMF_VERSION) - d2 = self.nm.create_mutable_file(MutableData(self.small_data)) - dl = gatherResults([d1, d2]) - def _then((n1, n2)): - assert isinstance(n1, MutableFileNode) - assert isinstance(n2, MutableFileNode) - - self.mdmf_node = n1 - self.sdmf_node = n2 - dl.addCallback(_then) - # Make SDMF and MDMF mutable file nodes that have 255 shares. - def _make_max_shares(ign): + def do_upload_sdmf(self): + d = self.nm.create_mutable_file(MutableData(self.small_data)) + def _then(n): + assert isinstance(n, MutableFileNode) + self.sdmf_node = n + # Make SDMF node that has 255 shares. self.nm.default_encoding_parameters['n'] = 255 self.nm.default_encoding_parameters['k'] = 127 - d1 = self.nm.create_mutable_file(MutableData(self.data), - version=MDMF_VERSION) - d2 = \ - self.nm.create_mutable_file(MutableData(self.small_data)) - return gatherResults([d1, d2]) - dl.addCallback(_make_max_shares) - def _stash((n1, n2)): - assert isinstance(n1, MutableFileNode) - assert isinstance(n2, MutableFileNode) - - self.mdmf_max_shares_node = n1 - self.sdmf_max_shares_node = n2 - dl.addCallback(_stash) - return dl + return self.nm.create_mutable_file(MutableData(self.small_data)) + d.addCallback(_then) + def _then2(n): + assert isinstance(n, MutableFileNode) + self.sdmf_max_shares_node = n + d.addCallback(_then2) + return d + def do_upload_mdmf(self): + d = self.nm.create_mutable_file(MutableData(self.data), + version=MDMF_VERSION) + def _then(n): + assert isinstance(n, MutableFileNode) + self.mdmf_node = n + # Make MDMF node that has 255 shares. + self.nm.default_encoding_parameters['n'] = 255 + self.nm.default_encoding_parameters['k'] = 127 + return self.nm.create_mutable_file(MutableData(self.data), + version=MDMF_VERSION) + d.addCallback(_then) + def _then2(n): + assert isinstance(n, MutableFileNode) + self.mdmf_max_shares_node = n + d.addCallback(_then2) + return d def _test_replace(self, offset, new_data): expected = self.data[:offset]+new_data+self.data[offset+len(new_data):] - for node in (self.mdmf_node, self.mdmf_max_shares_node): - d = node.get_best_mutable_version() - d.addCallback(lambda mv: - mv.update(MutableData(new_data), offset)) - # close around node. - d.addCallback(lambda ignored, node=node: - node.download_best_version()) - def _check(results): - if results != expected: - print - print "got: %s ... %s" % (results[:20], results[-20:]) - print "exp: %s ... %s" % (expected[:20], expected[-20:]) - self.fail("results != expected") - d.addCallback(_check) - return d + d0 = self.do_upload_mdmf() + def _run(ign): + d = defer.succeed(None) + for node in (self.mdmf_node, self.mdmf_max_shares_node): + d.addCallback(lambda ign: node.get_best_mutable_version()) + d.addCallback(lambda mv: + mv.update(MutableData(new_data), offset)) + # close around node. + d.addCallback(lambda ignored, node=node: + node.download_best_version()) + def _check(results): + if results != expected: + print + print "got: %s ... %s" % (results[:20], results[-20:]) + print "exp: %s ... %s" % (expected[:20], expected[-20:]) + self.fail("results != expected") + d.addCallback(_check) + return d + d0.addCallback(_run) + return d0 def test_append(self): # We should be able to append data to a mutable file and get @@ -3481,47 +3487,55 @@ class Update(GridTestMixin, unittest.TestCase, testutil.ShouldFailMixin): def test_replace_locations(self): # exercise fencepost conditions - expected = self.data SEGSIZE = 128*1024 suspects = range(SEGSIZE-3, SEGSIZE+1)+range(2*SEGSIZE-3, 2*SEGSIZE+1) letters = iter("ABCDEFGHIJKLMNOPQRSTUVWXYZ") - d = defer.succeed(None) - for offset in suspects: - new_data = letters.next()*2 # "AA", then "BB", etc - expected = expected[:offset]+new_data+expected[offset+2:] - d.addCallback(lambda ign: - self.mdmf_node.get_best_mutable_version()) - def _modify(mv, offset=offset, new_data=new_data): - # close over 'offset','new_data' - md = MutableData(new_data) - return mv.update(md, offset) - d.addCallback(_modify) - d.addCallback(lambda ignored: - self.mdmf_node.download_best_version()) - d.addCallback(self._check_differences, expected) - return d + d0 = self.do_upload_mdmf() + def _run(ign): + expected = self.data + d = defer.succeed(None) + for offset in suspects: + new_data = letters.next()*2 # "AA", then "BB", etc + expected = expected[:offset]+new_data+expected[offset+2:] + d.addCallback(lambda ign: + self.mdmf_node.get_best_mutable_version()) + def _modify(mv, offset=offset, new_data=new_data): + # close over 'offset','new_data' + md = MutableData(new_data) + return mv.update(md, offset) + d.addCallback(_modify) + d.addCallback(lambda ignored: + self.mdmf_node.download_best_version()) + d.addCallback(self._check_differences, expected) + return d + d0.addCallback(_run) + return d0 def test_replace_locations_max_shares(self): # exercise fencepost conditions - expected = self.data SEGSIZE = 128*1024 suspects = range(SEGSIZE-3, SEGSIZE+1)+range(2*SEGSIZE-3, 2*SEGSIZE+1) letters = iter("ABCDEFGHIJKLMNOPQRSTUVWXYZ") - d = defer.succeed(None) - for offset in suspects: - new_data = letters.next()*2 # "AA", then "BB", etc - expected = expected[:offset]+new_data+expected[offset+2:] - d.addCallback(lambda ign: - self.mdmf_max_shares_node.get_best_mutable_version()) - def _modify(mv, offset=offset, new_data=new_data): - # close over 'offset','new_data' - md = MutableData(new_data) - return mv.update(md, offset) - d.addCallback(_modify) - d.addCallback(lambda ignored: - self.mdmf_max_shares_node.download_best_version()) - d.addCallback(self._check_differences, expected) - return d + d0 = self.do_upload_mdmf() + def _run(ign): + expected = self.data + d = defer.succeed(None) + for offset in suspects: + new_data = letters.next()*2 # "AA", then "BB", etc + expected = expected[:offset]+new_data+expected[offset+2:] + d.addCallback(lambda ign: + self.mdmf_max_shares_node.get_best_mutable_version()) + def _modify(mv, offset=offset, new_data=new_data): + # close over 'offset','new_data' + md = MutableData(new_data) + return mv.update(md, offset) + d.addCallback(_modify) + d.addCallback(lambda ignored: + self.mdmf_max_shares_node.download_best_version()) + d.addCallback(self._check_differences, expected) + return d + d0.addCallback(_run) + return d0 def test_append_power_of_two(self): @@ -3535,29 +3549,38 @@ class Update(GridTestMixin, unittest.TestCase, testutil.ShouldFailMixin): # power-of-two boundary. segment = "a" * DEFAULT_MAX_SEGMENT_SIZE new_data = self.data + (segment * 2) - for node in (self.mdmf_node, self.mdmf_max_shares_node): - d = node.get_best_mutable_version() - d.addCallback(lambda mv: - mv.update(MutableData(segment * 2), len(self.data))) - d.addCallback(lambda ignored, node=node: - node.download_best_version()) - d.addCallback(lambda results: - self.failUnlessEqual(results, new_data)) - return d - + d0 = self.do_upload_mdmf() + def _run(ign): + d = defer.succeed(None) + for node in (self.mdmf_node, self.mdmf_max_shares_node): + d.addCallback(lambda ign: node.get_best_mutable_version()) + d.addCallback(lambda mv: + mv.update(MutableData(segment * 2), len(self.data))) + d.addCallback(lambda ignored, node=node: + node.download_best_version()) + d.addCallback(lambda results: + self.failUnlessEqual(results, new_data)) + return d + d0.addCallback(_run) + return d0 def test_update_sdmf(self): # Running update on a single-segment file should still work. new_data = self.small_data + "appended" - for node in (self.sdmf_node, self.sdmf_max_shares_node): - d = node.get_best_mutable_version() - d.addCallback(lambda mv: - mv.update(MutableData("appended"), len(self.small_data))) - d.addCallback(lambda ignored, node=node: - node.download_best_version()) - d.addCallback(lambda results: - self.failUnlessEqual(results, new_data)) - return d + d0 = self.do_upload_sdmf() + def _run(ign): + d = defer.succeed(None) + for node in (self.sdmf_node, self.sdmf_max_shares_node): + d.addCallback(lambda ign: node.get_best_mutable_version()) + d.addCallback(lambda mv: + mv.update(MutableData("appended"), len(self.small_data))) + d.addCallback(lambda ignored, node=node: + node.download_best_version()) + d.addCallback(lambda results: + self.failUnlessEqual(results, new_data)) + return d + d0.addCallback(_run) + return d0 def test_replace_in_last_segment(self): # The wrapper should know how to handle the tail segment @@ -3566,16 +3589,20 @@ class Update(GridTestMixin, unittest.TestCase, testutil.ShouldFailMixin): new_data = self.data[:replace_offset] + "replaced" rest_offset = replace_offset + len("replaced") new_data += self.data[rest_offset:] - for node in (self.mdmf_node, self.mdmf_max_shares_node): - d = node.get_best_mutable_version() - d.addCallback(lambda mv: - mv.update(MutableData("replaced"), replace_offset)) - d.addCallback(lambda ignored, node=node: - node.download_best_version()) - d.addCallback(lambda results: - self.failUnlessEqual(results, new_data)) - return d - + d0 = self.do_upload_mdmf() + def _run(ign): + d = defer.succeed(None) + for node in (self.mdmf_node, self.mdmf_max_shares_node): + d.addCallback(lambda ign: node.get_best_mutable_version()) + d.addCallback(lambda mv: + mv.update(MutableData("replaced"), replace_offset)) + d.addCallback(lambda ignored, node=node: + node.download_best_version()) + d.addCallback(lambda results: + self.failUnlessEqual(results, new_data)) + return d + d0.addCallback(_run) + return d0 def test_multiple_segment_replace(self): replace_offset = 2 * DEFAULT_MAX_SEGMENT_SIZE @@ -3585,16 +3612,21 @@ class Update(GridTestMixin, unittest.TestCase, testutil.ShouldFailMixin): new_data += "replaced" rest_offset = len(new_data) new_data += self.data[rest_offset:] - for node in (self.mdmf_node, self.mdmf_max_shares_node): - d = node.get_best_mutable_version() - d.addCallback(lambda mv: - mv.update(MutableData((2 * new_segment) + "replaced"), - replace_offset)) - d.addCallback(lambda ignored, node=node: - node.download_best_version()) - d.addCallback(lambda results: - self.failUnlessEqual(results, new_data)) - return d + d0 = self.do_upload_mdmf() + def _run(ign): + d = defer.succeed(None) + for node in (self.mdmf_node, self.mdmf_max_shares_node): + d.addCallback(lambda ign: node.get_best_mutable_version()) + d.addCallback(lambda mv: + mv.update(MutableData((2 * new_segment) + "replaced"), + replace_offset)) + d.addCallback(lambda ignored, node=node: + node.download_best_version()) + d.addCallback(lambda results: + self.failUnlessEqual(results, new_data)) + return d + d0.addCallback(_run) + return d0 class Interoperability(GridTestMixin, unittest.TestCase, testutil.ShouldFailMixin): sdmf_old_shares = {}