[Python-checkins] python/dist/src/Lib/test test_sets.py,NONE,1.1
gvanrossum@users.sourceforge.net
gvanrossum@users.sourceforge.net
Mon, 19 Aug 2002 09:19:18 -0700
Update of /cvsroot/python/python/dist/src/Lib/test
In directory usw-pr-cvs1:/tmp/cvs-serv21071/test
Added Files:
test_sets.py
Log Message:
Set classes and their unit tests, from sandbox.
--- NEW FILE: test_sets.py ---
#!/usr/bin/env python
import unittest, operator, copy
from sets import Set, ImmutableSet
from test import test_support
empty_set = Set()
#==============================================================================
class TestBasicOps(unittest.TestCase):
def test_repr(self):
if self.repr is not None:
assert `self.set` == self.repr, "Wrong representation for " + self.case
def test_length(self):
assert len(self.set) == self.length, "Wrong length for " + self.case
def test_self_equality(self):
assert self.set == self.set, "Self-equality failed for " + self.case
def test_equivalent_equality(self):
assert self.set == self.dup, "Equivalent equality failed for " + self.case
def test_copy(self):
assert self.set.copy() == self.dup, "Copy and comparison failed for " + self.case
def test_self_union(self):
result = self.set | self.set
assert result == self.dup, "Self-union failed for " + self.case
def test_empty_union(self):
result = self.set | empty_set
assert result == self.dup, "Union with empty failed for " + self.case
def test_union_empty(self):
result = empty_set | self.set
assert result == self.dup, "Union with empty failed for " + self.case
def test_self_intersection(self):
result = self.set & self.set
assert result == self.dup, "Self-intersection failed for " + self.case
def test_empty_intersection(self):
result = self.set & empty_set
assert result == empty_set, "Intersection with empty failed for " + self.case
def test_intersection_empty(self):
result = empty_set & self.set
assert result == empty_set, "Intersection with empty failed for " + self.case
def test_self_symmetric_difference(self):
result = self.set ^ self.set
assert result == empty_set, "Self-symdiff failed for " + self.case
def checkempty_symmetric_difference(self):
result = self.set ^ empty_set
assert result == self.set, "Symdiff with empty failed for " + self.case
def test_self_difference(self):
result = self.set - self.set
assert result == empty_set, "Self-difference failed for " + self.case
def test_empty_difference(self):
result = self.set - empty_set
assert result == self.dup, "Difference with empty failed for " + self.case
def test_empty_difference_rev(self):
result = empty_set - self.set
assert result == empty_set, "Difference from empty failed for " + self.case
def test_iteration(self):
for v in self.set:
assert v in self.values, "Missing item in iteration for " + self.case
#------------------------------------------------------------------------------
class TestBasicOpsEmpty(TestBasicOps):
def setUp(self):
self.case = "empty set"
self.values = []
self.set = Set(self.values)
self.dup = Set(self.values)
self.length = 0
self.repr = "Set([])"
#------------------------------------------------------------------------------
class TestBasicOpsSingleton(TestBasicOps):
def setUp(self):
self.case = "unit set (number)"
self.values = [3]
self.set = Set(self.values)
self.dup = Set(self.values)
self.length = 1
self.repr = "Set([3])"
def test_in(self):
assert 3 in self.set, "Valueship for unit set"
def test_not_in(self):
assert 2 not in self.set, "Non-valueship for unit set"
#------------------------------------------------------------------------------
class TestBasicOpsTuple(TestBasicOps):
def setUp(self):
self.case = "unit set (tuple)"
self.values = [(0, "zero")]
self.set = Set(self.values)
self.dup = Set(self.values)
self.length = 1
self.repr = "Set([(0, 'zero')])"
def test_in(self):
assert (0, "zero") in self.set, "Valueship for tuple set"
def test_not_in(self):
assert 9 not in self.set, "Non-valueship for tuple set"
#------------------------------------------------------------------------------
class TestBasicOpsTriple(TestBasicOps):
def setUp(self):
self.case = "triple set"
self.values = [0, "zero", operator.add]
self.set = Set(self.values)
self.dup = Set(self.values)
self.length = 3
self.repr = None
#==============================================================================
class TestBinaryOps(unittest.TestCase):
def setUp(self):
self.set = Set((2, 4, 6))
def test_union_subset(self):
result = self.set | Set([2])
assert result == Set((2, 4, 6)), "Subset union"
def test_union_superset(self):
result = self.set | Set([2, 4, 6, 8])
assert result == Set([2, 4, 6, 8]), "Superset union"
def test_union_overlap(self):
result = self.set | Set([3, 4, 5])
assert result == Set([2, 3, 4, 5, 6]), "Overlapping union"
def test_union_non_overlap(self):
result = self.set | Set([8])
assert result == Set([2, 4, 6, 8]), "Non-overlapping union"
def test_intersection_subset(self):
result = self.set & Set((2, 4))
assert result == Set((2, 4)), "Subset intersection"
def test_intersection_superset(self):
result = self.set & Set([2, 4, 6, 8])
assert result == Set([2, 4, 6]), "Superset intersection"
def test_intersection_overlap(self):
result = self.set & Set([3, 4, 5])
assert result == Set([4]), "Overlapping intersection"
def test_intersection_non_overlap(self):
result = self.set & Set([8])
assert result == empty_set, "Non-overlapping intersection"
def test_sym_difference_subset(self):
result = self.set ^ Set((2, 4))
assert result == Set([6]), "Subset symmetric difference"
def test_sym_difference_superset(self):
result = self.set ^ Set((2, 4, 6, 8))
assert result == Set([8]), "Superset symmetric difference"
def test_sym_difference_overlap(self):
result = self.set ^ Set((3, 4, 5))
assert result == Set([2, 3, 5, 6]), "Overlapping symmetric difference"
def test_sym_difference_non_overlap(self):
result = self.set ^ Set([8])
assert result == Set([2, 4, 6, 8]), "Non-overlapping symmetric difference"
#==============================================================================
class TestUpdateOps(unittest.TestCase):
def setUp(self):
self.set = Set((2, 4, 6))
def test_union_subset(self):
self.set |= Set([2])
assert self.set == Set((2, 4, 6)), "Subset union"
def test_union_superset(self):
self.set |= Set([2, 4, 6, 8])
assert self.set == Set([2, 4, 6, 8]), "Superset union"
def test_union_overlap(self):
self.set |= Set([3, 4, 5])
assert self.set == Set([2, 3, 4, 5, 6]), "Overlapping union"
def test_union_non_overlap(self):
self.set |= Set([8])
assert self.set == Set([2, 4, 6, 8]), "Non-overlapping union"
def test_intersection_subset(self):
self.set &= Set((2, 4))
assert self.set == Set((2, 4)), "Subset intersection"
def test_intersection_superset(self):
self.set &= Set([2, 4, 6, 8])
assert self.set == Set([2, 4, 6]), "Superset intersection"
def test_intersection_overlap(self):
self.set &= Set([3, 4, 5])
assert self.set == Set([4]), "Overlapping intersection"
def test_intersection_non_overlap(self):
self.set &= Set([8])
assert self.set == empty_set, "Non-overlapping intersection"
def test_sym_difference_subset(self):
self.set ^= Set((2, 4))
assert self.set == Set([6]), "Subset symmetric difference"
def test_sym_difference_superset(self):
self.set ^= Set((2, 4, 6, 8))
assert self.set == Set([8]), "Superset symmetric difference"
def test_sym_difference_overlap(self):
self.set ^= Set((3, 4, 5))
assert self.set == Set([2, 3, 5, 6]), "Overlapping symmetric difference"
def test_sym_difference_non_overlap(self):
self.set ^= Set([8])
assert self.set == Set([2, 4, 6, 8]), "Non-overlapping symmetric difference"
#==============================================================================
class TestMutate(unittest.TestCase):
def setUp(self):
self.values = ["a", "b", "c"]
self.set = Set(self.values)
def test_add_present(self):
self.set.add("c")
assert self.set == Set(("a", "b", "c")), "Adding present element"
def test_add_absent(self):
self.set.add("d")
assert self.set == Set(("a", "b", "c", "d")), "Adding missing element"
def test_add_until_full(self):
tmp = Set()
expected_len = 0
for v in self.values:
tmp.add(v)
expected_len += 1
assert len(tmp) == expected_len, "Adding values one by one to temporary"
assert tmp == self.set, "Adding values one by one"
def test_remove_present(self):
self.set.remove("b")
assert self.set == Set(("a", "c")), "Removing present element"
def test_remove_absent(self):
try:
self.set.remove("d")
assert 0, "Removing missing element"
except LookupError:
pass
def test_remove_until_empty(self):
expected_len = len(self.set)
for v in self.values:
self.set.remove(v)
expected_len -= 1
assert len(self.set) == expected_len, "Removing values one by one"
def test_discard_present(self):
self.set.discard("c")
assert self.set == Set(("a", "b")), "Discarding present element"
def test_discard_absent(self):
self.set.discard("d")
assert self.set == Set(("a", "b", "c")), "Discarding missing element"
def test_clear(self):
self.set.clear()
assert len(self.set) == 0, "Clearing set"
def test_popitem(self):
popped = {}
while self.set:
popped[self.set.popitem()] = None
assert len(popped) == len(self.values), "Popping items"
for v in self.values:
assert v in popped, "Popping items"
def test_update_empty_tuple(self):
self.set.update(())
assert self.set == Set(self.values), "Updating with empty tuple"
def test_update_unit_tuple_overlap(self):
self.set.update(("a",))
assert self.set == Set(self.values), "Updating with overlapping unit tuple"
def test_update_unit_tuple_non_overlap(self):
self.set.update(("a", "z"))
assert self.set == Set(self.values + ["z"]), "Updating with non-overlapping unit tuple"
#==============================================================================
class TestSubsets(unittest.TestCase):
def test_issubset(self):
result = self.left.issubset(self.right)
if "<" in self.cases:
assert result, "subset: " + self.name
else:
assert not result, "non-subset: " + self.name
#------------------------------------------------------------------------------
class TestSubsetEqualEmpty(TestSubsets):
def setUp(self):
self.left = Set()
self.right = Set()
self.name = "both empty"
self.cases = "<>"
#------------------------------------------------------------------------------
class TestSubsetEqualNonEmpty(TestSubsets):
def setUp(self):
self.left = Set([1, 2])
self.right = Set([1, 2])
self.name = "equal pair"
self.cases = "<>"
#------------------------------------------------------------------------------
class TestSubsetEmptyNonEmpty(TestSubsets):
def setUp(self):
self.left = Set()
self.right = Set([1, 2])
self.name = "one empty, one non-empty"
self.cases = "<"
#------------------------------------------------------------------------------
class TestSubsetPartial(TestSubsets):
def setUp(self):
self.left = Set([1])
self.right = Set([1, 2])
self.name = "one a non-empty subset of other"
self.cases = "<"
#------------------------------------------------------------------------------
class TestSubsetNonOverlap(TestSubsets):
def setUp(self):
self.left = Set([1])
self.right = Set([2])
self.name = "neither empty, neither contains"
self.cases = ""
#==============================================================================
class TestOnlySetsInBinaryOps(unittest.TestCase):
def test_cmp(self):
try:
self.other < self.set
assert 0, "Comparison with non-set on left"
except TypeError:
pass
try:
self.set >= self.other
assert 0, "Comparison with non-set on right"
except TypeError:
pass
def test_union_update(self):
try:
self.set |= self.other
assert 0, "Union update with non-set"
except TypeError:
pass
def test_union(self):
try:
self.other | self.set
assert 0, "Union with non-set on left"
except TypeError:
pass
try:
self.set | self.other
assert 0, "Union with non-set on right"
except TypeError:
pass
def test_intersection_update(self):
try:
self.set &= self.other
assert 0, "Intersection update with non-set"
except TypeError:
pass
def test_intersection(self):
try:
self.other & self.set
assert 0, "Intersection with non-set on left"
except TypeError:
pass
try:
self.set & self.other
assert 0, "Intersection with non-set on right"
except TypeError:
pass
def test_sym_difference_update(self):
try:
self.set ^= self.other
assert 0, "Symmetric difference update with non-set"
except TypeError:
pass
def test_sym_difference(self):
try:
self.other ^ self.set
assert 0, "Symmetric difference with non-set on left"
except TypeError:
pass
try:
self.set ^ self.other
assert 0, "Symmetric difference with non-set on right"
except TypeError:
pass
def test_difference_update(self):
try:
self.set -= self.other
assert 0, "Symmetric difference update with non-set"
except TypeError:
pass
def test_difference(self):
try:
self.other - self.set
assert 0, "Symmetric difference with non-set on left"
except TypeError:
pass
try:
self.set - self.other
assert 0, "Symmetric difference with non-set on right"
except TypeError:
pass
#------------------------------------------------------------------------------
class TestOnlySetsNumeric(TestOnlySetsInBinaryOps):
def setUp(self):
self.set = Set((1, 2, 3))
self.other = 19
#------------------------------------------------------------------------------
class TestOnlySetsDict(TestOnlySetsInBinaryOps):
def setUp(self):
self.set = Set((1, 2, 3))
self.other = {1:2, 3:4}
#------------------------------------------------------------------------------
class TestOnlySetsOperator(TestOnlySetsInBinaryOps):
def setUp(self):
self.set = Set((1, 2, 3))
self.other = operator.add
#==============================================================================
class TestCopying(unittest.TestCase):
def test_copy(self):
dup = self.set.copy()
dup_list = list(dup); dup_list.sort()
set_list = list(self.set); set_list.sort()
assert len(dup_list) == len(set_list), "Unequal lengths after copy"
for i in range(len(dup_list)):
assert dup_list[i] is set_list[i], "Non-identical items after copy"
def test_deep_copy(self):
dup = copy.deepcopy(self.set)
##print type(dup), `dup`
dup_list = list(dup); dup_list.sort()
set_list = list(self.set); set_list.sort()
assert len(dup_list) == len(set_list), "Unequal lengths after deep copy"
for i in range(len(dup_list)):
assert dup_list[i] == set_list[i], "Unequal items after deep copy"
#------------------------------------------------------------------------------
class TestCopyingEmpty(TestCopying):
def setUp(self):
self.set = Set()
#------------------------------------------------------------------------------
class TestCopyingSingleton(TestCopying):
def setUp(self):
self.set = Set(["hello"])
#------------------------------------------------------------------------------
class TestCopyingTriple(TestCopying):
def setUp(self):
self.set = Set(["zero", 0, None])
#------------------------------------------------------------------------------
class TestCopyingTuple(TestCopying):
def setUp(self):
self.set = Set([(1, 2)])
#------------------------------------------------------------------------------
class TestCopyingNested(TestCopying):
def setUp(self):
self.set = Set([((1, 2), (3, 4))])
#==============================================================================
def makeAllTests():
suite = unittest.TestSuite()
suite.addTest(unittest.makeSuite(TestBasicOpsEmpty))
suite.addTest(unittest.makeSuite(TestBasicOpsSingleton))
suite.addTest(unittest.makeSuite(TestBasicOpsTuple))
suite.addTest(unittest.makeSuite(TestBasicOpsTriple))
suite.addTest(unittest.makeSuite(TestBinaryOps))
suite.addTest(unittest.makeSuite(TestUpdateOps))
suite.addTest(unittest.makeSuite(TestMutate))
suite.addTest(unittest.makeSuite(TestSubsetEqualEmpty))
suite.addTest(unittest.makeSuite(TestSubsetEqualNonEmpty))
suite.addTest(unittest.makeSuite(TestSubsetEmptyNonEmpty))
suite.addTest(unittest.makeSuite(TestSubsetPartial))
suite.addTest(unittest.makeSuite(TestSubsetNonOverlap))
suite.addTest(unittest.makeSuite(TestOnlySetsNumeric))
suite.addTest(unittest.makeSuite(TestOnlySetsDict))
suite.addTest(unittest.makeSuite(TestOnlySetsOperator))
suite.addTest(unittest.makeSuite(TestCopyingEmpty))
suite.addTest(unittest.makeSuite(TestCopyingSingleton))
suite.addTest(unittest.makeSuite(TestCopyingTriple))
suite.addTest(unittest.makeSuite(TestCopyingTuple))
suite.addTest(unittest.makeSuite(TestCopyingNested))
return suite
#------------------------------------------------------------------------------
def test_main():
suite = makeAllTests()
test_support.run_suite(suite)
if __name__ == "__main__":
test_main()