From: Brian Warner Date: Mon, 16 Feb 2009 03:32:10 +0000 (-0700) Subject: test_util: get almost full test coverage of dictutil, starting with the original... X-Git-Tag: allmydata-tahoe-1.4.0~220 X-Git-Url: https://git.rkrishnan.org/components/%22news.html/provisioning?a=commitdiff_plain;h=3235b9630b40bca30cc458f2f8236de153e18ade;p=tahoe-lafs%2Ftahoe-lafs.git test_util: get almost full test coverage of dictutil, starting with the original pyutil tests as a base. The remaining three uncovered lines involve funny cases of ValueOrderedDict that I can't figure out how to get at --- diff --git a/src/allmydata/test/test_mutable.py b/src/allmydata/test/test_mutable.py index f3c6e469..4d62f165 100644 --- a/src/allmydata/test/test_mutable.py +++ b/src/allmydata/test/test_mutable.py @@ -19,7 +19,7 @@ from foolscap.logging import log import sha from allmydata.mutable.filenode import MutableFileNode, BackoffAgent -from allmydata.mutable.common import DictOfSets, ResponseCache, \ +from allmydata.mutable.common import ResponseCache, \ MODE_CHECK, MODE_ANYTHING, MODE_WRITE, MODE_READ, \ NeedMoreDataError, UnrecoverableFileError, UncoordinatedWriteError, \ NotEnoughServersError, CorruptShareError @@ -1696,20 +1696,6 @@ class MultipleVersions(unittest.TestCase, PublishMixin, CheckerMixin): class Utils(unittest.TestCase): - def test_dict_of_sets(self): - ds = DictOfSets() - ds.add(1, "a") - ds.add(2, "b") - ds.add(2, "b") - ds.add(2, "c") - self.failUnlessEqual(ds[1], set(["a"])) - self.failUnlessEqual(ds[2], set(["b", "c"])) - ds.discard(3, "d") # should not raise an exception - ds.discard(2, "b") - self.failUnlessEqual(ds[2], set(["c"])) - ds.discard(2, "c") - self.failIf(2 in ds) - def _do_inside(self, c, x_start, x_length, y_start, y_length): # we compare this against sets of integers x = set(range(x_start, x_start+x_length)) diff --git a/src/allmydata/test/test_util.py b/src/allmydata/test/test_util.py index e1e6ab41..8d979667 100644 --- a/src/allmydata/test/test_util.py +++ b/src/allmydata/test/test_util.py @@ -10,7 +10,7 @@ from twisted.python import failure from allmydata.util import base32, idlib, humanreadable, mathutil, hashutil from allmydata.util import assertutil, fileutil, deferredutil, abbreviate from allmydata.util import limiter, time_format, pollmixin, cachedir -from allmydata.util import statistics +from allmydata.util import statistics, dictutil class Base32(unittest.TestCase): def test_b2a_matches_Pythons(self): @@ -840,3 +840,358 @@ class CacheDir(unittest.TestCase): _failIfExists("a") _failUnlessExists("b") _failUnlessExists("c") + +ctr = [0] +class EqButNotIs: + def __init__(self, x): + self.x = x + self.hash = ctr[0] + ctr[0] += 1 + def __repr__(self): + return "<%s %s>" % (self.__class__.__name__, self.x,) + def __hash__(self): + return self.hash + def __le__(self, other): + return self.x <= other + def __lt__(self, other): + return self.x < other + def __ge__(self, other): + return self.x >= other + def __gt__(self, other): + return self.x > other + def __ne__(self, other): + return self.x != other + def __eq__(self, other): + return self.x == other + +class DictUtil(unittest.TestCase): + def _help_test_empty_dict(self, klass): + d1 = klass() + d2 = klass({}) + + self.failUnless(d1 == d2, "d1: %r, d2: %r" % (d1, d2,)) + self.failUnless(len(d1) == 0) + self.failUnless(len(d2) == 0) + + def _help_test_nonempty_dict(self, klass): + d1 = klass({'a': 1, 'b': "eggs", 3: "spam",}) + d2 = klass({'a': 1, 'b': "eggs", 3: "spam",}) + + self.failUnless(d1 == d2) + self.failUnless(len(d1) == 3, "%s, %s" % (len(d1), d1,)) + self.failUnless(len(d2) == 3) + + def _help_test_eq_but_notis(self, klass): + d = klass({'a': 3, 'b': EqButNotIs(3), 'c': 3}) + d.pop('b') + + d.clear() + d['a'] = 3 + d['b'] = EqButNotIs(3) + d['c'] = 3 + d.pop('b') + + d.clear() + d['b'] = EqButNotIs(3) + d['a'] = 3 + d['c'] = 3 + d.pop('b') + + d.clear() + d['a'] = EqButNotIs(3) + d['c'] = 3 + d['a'] = 3 + + d.clear() + fake3 = EqButNotIs(3) + fake7 = EqButNotIs(7) + d[fake3] = fake7 + d[3] = 7 + d[3] = 8 + self.failUnless(filter(lambda x: x is 8, d.itervalues())) + self.failUnless(filter(lambda x: x is fake7, d.itervalues())) + # The real 7 should have been ejected by the d[3] = 8. + self.failUnless(not filter(lambda x: x is 7, d.itervalues())) + self.failUnless(filter(lambda x: x is fake3, d.iterkeys())) + self.failUnless(filter(lambda x: x is 3, d.iterkeys())) + d[fake3] = 8 + + d.clear() + d[3] = 7 + fake3 = EqButNotIs(3) + fake7 = EqButNotIs(7) + d[fake3] = fake7 + d[3] = 8 + self.failUnless(filter(lambda x: x is 8, d.itervalues())) + self.failUnless(filter(lambda x: x is fake7, d.itervalues())) + # The real 7 should have been ejected by the d[3] = 8. + self.failUnless(not filter(lambda x: x is 7, d.itervalues())) + self.failUnless(filter(lambda x: x is fake3, d.iterkeys())) + self.failUnless(filter(lambda x: x is 3, d.iterkeys())) + d[fake3] = 8 + + def test_all(self): + self._help_test_eq_but_notis(dictutil.UtilDict) + self._help_test_eq_but_notis(dictutil.NumDict) + self._help_test_eq_but_notis(dictutil.ValueOrderedDict) + self._help_test_nonempty_dict(dictutil.UtilDict) + self._help_test_nonempty_dict(dictutil.NumDict) + self._help_test_nonempty_dict(dictutil.ValueOrderedDict) + self._help_test_eq_but_notis(dictutil.UtilDict) + self._help_test_eq_but_notis(dictutil.NumDict) + self._help_test_eq_but_notis(dictutil.ValueOrderedDict) + + def test_dict_of_sets(self): + ds = dictutil.DictOfSets() + ds.add(1, "a") + ds.add(2, "b") + ds.add(2, "b") + ds.add(2, "c") + self.failUnlessEqual(ds[1], set(["a"])) + self.failUnlessEqual(ds[2], set(["b", "c"])) + ds.discard(3, "d") # should not raise an exception + ds.discard(2, "b") + self.failUnlessEqual(ds[2], set(["c"])) + ds.discard(2, "c") + self.failIf(2 in ds) + + ds.union(1, ["a", "e"]) + ds.union(3, ["f"]) + self.failUnlessEqual(ds[1], set(["a","e"])) + self.failUnlessEqual(ds[3], set(["f"])) + ds2 = dictutil.DictOfSets() + ds2.add(3, "f") + ds2.add(3, "g") + ds2.add(4, "h") + ds.update(ds2) + self.failUnlessEqual(ds[1], set(["a","e"])) + self.failUnlessEqual(ds[3], set(["f", "g"])) + self.failUnlessEqual(ds[4], set(["h"])) + + def test_move(self): + d1 = {1: "a", 2: "b"} + d2 = {2: "c", 3: "d"} + dictutil.move(1, d1, d2) + self.failUnlessEqual(d1, {2: "b"}) + self.failUnlessEqual(d2, {1: "a", 2: "c", 3: "d"}) + + d1 = {1: "a", 2: "b"} + d2 = {2: "c", 3: "d"} + dictutil.move(2, d1, d2) + self.failUnlessEqual(d1, {1: "a"}) + self.failUnlessEqual(d2, {2: "b", 3: "d"}) + + d1 = {1: "a", 2: "b"} + d2 = {2: "c", 3: "d"} + self.failUnlessRaises(KeyError, dictutil.move, 5, d1, d2, strict=True) + + def test_subtract(self): + d1 = {1: "a", 2: "b"} + d2 = {2: "c", 3: "d"} + d3 = dictutil.subtract(d1, d2) + self.failUnlessEqual(d3, {1: "a"}) + + d1 = {1: "a", 2: "b"} + d2 = {2: "c"} + d3 = dictutil.subtract(d1, d2) + self.failUnlessEqual(d3, {1: "a"}) + + def test_utildict(self): + d = dictutil.UtilDict({1: "a", 2: "b"}) + d.del_if_present(1) + d.del_if_present(3) + self.failUnlessEqual(d, {2: "b"}) + def eq(a, b): + return a == b + self.failUnlessRaises(TypeError, eq, d, "not a dict") + + d = dictutil.UtilDict({1: "b", 2: "a"}) + self.failUnlessEqual(d.items_sorted_by_value(), + [(2, "a"), (1, "b")]) + self.failUnlessEqual(d.items_sorted_by_key(), + [(1, "b"), (2, "a")]) + self.failUnlessEqual(repr(d), "{1: 'b', 2: 'a'}") + self.failUnless(1 in d) + + d2 = dictutil.UtilDict({3: "c", 4: "d"}) + self.failUnless(d != d2) + self.failUnless(d2 > d) + self.failUnless(d2 >= d) + self.failUnless(d <= d2) + self.failUnless(d < d2) + self.failUnlessEqual(d[1], "b") + self.failUnlessEqual(sorted(list([k for k in d])), [1,2]) + + d3 = d.copy() + self.failUnlessEqual(d, d3) + self.failUnless(isinstance(d3, dictutil.UtilDict)) + + d4 = d.fromkeys([3,4], "e") + self.failUnlessEqual(d4, {3: "e", 4: "e"}) + + self.failUnlessEqual(d.get(1), "b") + self.failUnlessEqual(d.get(3), None) + self.failUnlessEqual(d.get(3, "default"), "default") + self.failUnlessEqual(sorted(list(d.items())), + [(1, "b"), (2, "a")]) + self.failUnlessEqual(sorted(list(d.iteritems())), + [(1, "b"), (2, "a")]) + self.failUnlessEqual(sorted(d.keys()), [1, 2]) + self.failUnlessEqual(sorted(d.values()), ["a", "b"]) + x = d.setdefault(1, "new") + self.failUnlessEqual(x, "b") + self.failUnlessEqual(d[1], "b") + x = d.setdefault(3, "new") + self.failUnlessEqual(x, "new") + self.failUnlessEqual(d[3], "new") + del d[3] + + x = d.popitem() + self.failUnless(x in [(1, "b"), (2, "a")]) + x = d.popitem() + self.failUnless(x in [(1, "b"), (2, "a")]) + self.failUnlessRaises(KeyError, d.popitem) + + def test_numdict(self): + d = dictutil.NumDict({"a": 1, "b": 2}) + + d.add_num("a", 10, 5) + d.add_num("c", 20, 5) + d.add_num("d", 30) + self.failUnlessEqual(d, {"a": 11, "b": 2, "c": 25, "d": 30}) + + d.subtract_num("a", 10) + d.subtract_num("e", 10) + d.subtract_num("f", 10, 15) + self.failUnlessEqual(d, {"a": 1, "b": 2, "c": 25, "d": 30, + "e": -10, "f": 5}) + + self.failUnlessEqual(d.sum(), sum([1, 2, 25, 30, -10, 5])) + + d = dictutil.NumDict() + d.inc("a") + d.inc("a") + d.inc("b", 5) + self.failUnlessEqual(d, {"a": 2, "b": 6}) + d.dec("a") + d.dec("c") + d.dec("d", 5) + self.failUnlessEqual(d, {"a": 1, "b": 6, "c": -1, "d": 4}) + self.failUnlessEqual(d.items_sorted_by_key(), + [("a", 1), ("b", 6), ("c", -1), ("d", 4)]) + self.failUnlessEqual(d.items_sorted_by_value(), + [("c", -1), ("a", 1), ("d", 4), ("b", 6)]) + self.failUnlessEqual(d.item_with_largest_value(), ("b", 6)) + + d = dictutil.NumDict({"a": 1, "b": 2}) + self.failUnlessEqual(repr(d), "{'a': 1, 'b': 2}") + self.failUnless("a" in d) + + d2 = dictutil.NumDict({"c": 3, "d": 4}) + self.failUnless(d != d2) + self.failUnless(d2 > d) + self.failUnless(d2 >= d) + self.failUnless(d <= d2) + self.failUnless(d < d2) + self.failUnlessEqual(d["a"], 1) + self.failUnlessEqual(sorted(list([k for k in d])), ["a","b"]) + def eq(a, b): + return a == b + self.failUnlessRaises(TypeError, eq, d, "not a dict") + + d3 = d.copy() + self.failUnlessEqual(d, d3) + self.failUnless(isinstance(d3, dictutil.NumDict)) + + d4 = d.fromkeys(["a","b"], 5) + self.failUnlessEqual(d4, {"a": 5, "b": 5}) + + self.failUnlessEqual(d.get("a"), 1) + self.failUnlessEqual(d.get("c"), 0) + self.failUnlessEqual(d.get("c", 5), 5) + self.failUnlessEqual(sorted(list(d.items())), + [("a", 1), ("b", 2)]) + self.failUnlessEqual(sorted(list(d.iteritems())), + [("a", 1), ("b", 2)]) + self.failUnlessEqual(sorted(d.keys()), ["a", "b"]) + self.failUnlessEqual(sorted(d.values()), [1, 2]) + self.failUnless(d.has_key("a")) + self.failIf(d.has_key("c")) + + x = d.setdefault("c", 3) + self.failUnlessEqual(x, 3) + self.failUnlessEqual(d["c"], 3) + x = d.setdefault("c", 5) + self.failUnlessEqual(x, 3) + self.failUnlessEqual(d["c"], 3) + del d["c"] + + x = d.popitem() + self.failUnless(x in [("a", 1), ("b", 2)]) + x = d.popitem() + self.failUnless(x in [("a", 1), ("b", 2)]) + self.failUnlessRaises(KeyError, d.popitem) + + d.update({"c": 3}) + d.update({"c": 4, "d": 5}) + self.failUnlessEqual(d, {"c": 4, "d": 5}) + + def test_del_if_present(self): + d = {1: "a", 2: "b"} + dictutil.del_if_present(d, 1) + dictutil.del_if_present(d, 3) + self.failUnlessEqual(d, {2: "b"}) + + def test_valueordereddict(self): + d = dictutil.ValueOrderedDict() + d["a"] = 3 + d["b"] = 2 + d["c"] = 1 + + self.failUnlessEqual(d, {"a": 3, "b": 2, "c": 1}) + self.failUnlessEqual(d.items(), [("c", 1), ("b", 2), ("a", 3)]) + self.failUnlessEqual(d.values(), [1, 2, 3]) + self.failUnlessEqual(d.keys(), ["c", "b", "a"]) + self.failUnlessEqual(repr(d), "") + def eq(a, b): + return a == b + self.failIf(d == {"a": 4}) + self.failUnless(d != {"a": 4}) + + x = d.setdefault("d", 0) + self.failUnlessEqual(x, 0) + self.failUnlessEqual(d["d"], 0) + x = d.setdefault("d", -1) + self.failUnlessEqual(x, 0) + self.failUnlessEqual(d["d"], 0) + + x = d.remove("e", "default", False) + self.failUnlessEqual(x, "default") + self.failUnlessRaises(KeyError, d.remove, "e", "default", True) + x = d.remove("d", 5) + self.failUnlessEqual(x, 0) + + x = d.__getitem__("c") + self.failUnlessEqual(x, 1) + x = d.__getitem__("e", "default", False) + self.failUnlessEqual(x, "default") + self.failUnlessRaises(KeyError, d.__getitem__, "e", "default", True) + + self.failUnlessEqual(d.popitem(), ("c", 1)) + self.failUnlessEqual(d.popitem(), ("b", 2)) + self.failUnlessEqual(d.popitem(), ("a", 3)) + self.failUnlessRaises(KeyError, d.popitem) + + d = dictutil.ValueOrderedDict({"a": 3, "b": 2, "c": 1}) + x = d.pop("d", "default", False) + self.failUnlessEqual(x, "default") + self.failUnlessRaises(KeyError, d.pop, "d", "default", True) + x = d.pop("b") + self.failUnlessEqual(x, 2) + self.failUnlessEqual(d.items(), [("c", 1), ("a", 3)]) + + d = dictutil.ValueOrderedDict({"a": 3, "b": 2, "c": 1}) + x = d.pop_from_list(1) # pop the second item, b/2 + self.failUnlessEqual(x, "b") + self.failUnlessEqual(d.items(), [("c", 1), ("a", 3)]) +