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Commit 4dc9c84e authored by Sandro Tosi's avatar Sandro Tosi
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#11572: improvements to copy module tests along with removal of old test suite

parent 29f62976
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Showing with 95 additions and 138 deletions
Lib/copy.py
View file @ 4dc9c84e
......@@ -323,68 +323,3 @@ del types
# Helper for instance creation without calling __init__
class _EmptyClass:
pass
def _test():
l = [None, 1, 2, 3.14, 'xyzzy', (1, 2), [3.14, 'abc'],
{'abc': 'ABC'}, (), [], {}]
l1 = copy(l)
print(l1==l)
l1 = map(copy, l)
print(l1==l)
l1 = deepcopy(l)
print(l1==l)
class C:
def __init__(self, arg=None):
self.a = 1
self.arg = arg
if __name__ == '__main__':
import sys
file = sys.argv[0]
else:
file = __file__
self.fp = open(file)
self.fp.close()
def __getstate__(self):
return {'a': self.a, 'arg': self.arg}
def __setstate__(self, state):
for key, value in state.items():
setattr(self, key, value)
def __deepcopy__(self, memo=None):
new = self.__class__(deepcopy(self.arg, memo))
new.a = self.a
return new
c = C('argument sketch')
l.append(c)
l2 = copy(l)
print(l == l2)
print(l)
print(l2)
l2 = deepcopy(l)
print(l == l2)
print(l)
print(l2)
l.append({l[1]: l, 'xyz': l[2]})
l3 = copy(l)
import reprlib
print(map(reprlib.repr, l))
print(map(reprlib.repr, l1))
print(map(reprlib.repr, l2))
print(map(reprlib.repr, l3))
l3 = deepcopy(l)
print(map(reprlib.repr, l))
print(map(reprlib.repr, l1))
print(map(reprlib.repr, l2))
print(map(reprlib.repr, l3))
class odict(dict):
def __init__(self, d = {}):
self.a = 99
dict.__init__(self, d)
def __setitem__(self, k, i):
dict.__setitem__(self, k, i)
self.a
o = odict({"A" : "B"})
x = deepcopy(o)
print(o, x)
if __name__ == '__main__':
_test()
Lib/test/test_copy.py
View file @ 4dc9c84e
......@@ -17,7 +17,7 @@ class TestCopy(unittest.TestCase):
# Attempt full line coverage of copy.py from top to bottom
def test_exceptions(self):
self.assertTrue(copy.Error is copy.error)
self.assertIs(copy.Error, copy.error)
self.assertTrue(issubclass(copy.Error, Exception))
# The copy() method
......@@ -54,20 +54,26 @@ class TestCopy(unittest.TestCase):
def test_copy_reduce_ex(self):
class C(object):
def __reduce_ex__(self, proto):
c.append(1)
return ""
def __reduce__(self):
raise support.TestFailed("shouldn't call this")
self.fail("shouldn't call this")
c = []
x = C()
y = copy.copy(x)
self.assertTrue(y is x)
self.assertIs(y, x)
self.assertEqual(c, [1])
def test_copy_reduce(self):
class C(object):
def __reduce__(self):
c.append(1)
return ""
c = []
x = C()
y = copy.copy(x)
self.assertTrue(y is x)
self.assertIs(y, x)
self.assertEqual(c, [1])
def test_copy_cant(self):
class C(object):
......@@ -91,7 +97,7 @@ class TestCopy(unittest.TestCase):
"hello", "hello\u1234", f.__code__,
NewStyle, range(10), Classic, max]
for x in tests:
self.assertTrue(copy.copy(x) is x, repr(x))
self.assertIs(copy.copy(x), x)
def test_copy_list(self):
x = [1, 2, 3]
......@@ -185,9 +191,9 @@ class TestCopy(unittest.TestCase):
x = [x, x]
y = copy.deepcopy(x)
self.assertEqual(y, x)
self.assertTrue(y is not x)
self.assertTrue(y[0] is not x[0])
self.assertTrue(y[0] is y[1])
self.assertIsNot(y, x)
self.assertIsNot(y[0], x[0])
self.assertIs(y[0], y[1])
def test_deepcopy_issubclass(self):
# XXX Note: there's no way to test the TypeError coming out of
......@@ -227,20 +233,26 @@ class TestCopy(unittest.TestCase):
def test_deepcopy_reduce_ex(self):
class C(object):
def __reduce_ex__(self, proto):
c.append(1)
return ""
def __reduce__(self):
raise support.TestFailed("shouldn't call this")
self.fail("shouldn't call this")
c = []
x = C()
y = copy.deepcopy(x)
self.assertTrue(y is x)
self.assertIs(y, x)
self.assertEqual(c, [1])
def test_deepcopy_reduce(self):
class C(object):
def __reduce__(self):
c.append(1)
return ""
c = []
x = C()
y = copy.deepcopy(x)
self.assertTrue(y is x)
self.assertIs(y, x)
self.assertEqual(c, [1])
def test_deepcopy_cant(self):
class C(object):
......@@ -264,14 +276,14 @@ class TestCopy(unittest.TestCase):
"hello", "hello\u1234", f.__code__,
NewStyle, range(10), Classic, max]
for x in tests:
self.assertTrue(copy.deepcopy(x) is x, repr(x))
self.assertIs(copy.deepcopy(x), x)
def test_deepcopy_list(self):
x = [[1, 2], 3]
y = copy.deepcopy(x)
self.assertEqual(y, x)
self.assertTrue(x is not y)
self.assertTrue(x[0] is not y[0])
self.assertIsNot(x, y)
self.assertIsNot(x[0], y[0])
def test_deepcopy_reflexive_list(self):
x = []
......@@ -279,16 +291,26 @@ class TestCopy(unittest.TestCase):
y = copy.deepcopy(x)
for op in comparisons:
self.assertRaises(RuntimeError, op, y, x)
self.assertTrue(y is not x)
self.assertTrue(y[0] is y)
self.assertIsNot(y, x)
self.assertIs(y[0], y)
self.assertEqual(len(y), 1)
def test_deepcopy_empty_tuple(self):
x = ()
y = copy.deepcopy(x)
self.assertIs(x, y)
def test_deepcopy_tuple(self):
x = ([1, 2], 3)
y = copy.deepcopy(x)
self.assertEqual(y, x)
self.assertTrue(x is not y)
self.assertTrue(x[0] is not y[0])
self.assertIsNot(x, y)
self.assertIsNot(x[0], y[0])
def test_deepcopy_tuple_of_immutables(self):
x = ((1, 2), 3)
y = copy.deepcopy(x)
self.assertIs(x, y)
def test_deepcopy_reflexive_tuple(self):
x = ([],)
......@@ -296,16 +318,16 @@ class TestCopy(unittest.TestCase):
y = copy.deepcopy(x)
for op in comparisons:
self.assertRaises(RuntimeError, op, y, x)
self.assertTrue(y is not x)
self.assertTrue(y[0] is not x[0])
self.assertTrue(y[0][0] is y)
self.assertIsNot(y, x)
self.assertIsNot(y[0], x[0])
self.assertIs(y[0][0], y)
def test_deepcopy_dict(self):
x = {"foo": [1, 2], "bar": 3}
y = copy.deepcopy(x)
self.assertEqual(y, x)
self.assertTrue(x is not y)
self.assertTrue(x["foo"] is not y["foo"])
self.assertIsNot(x, y)
self.assertIsNot(x["foo"], y["foo"])
def test_deepcopy_reflexive_dict(self):
x = {}
......@@ -315,8 +337,8 @@ class TestCopy(unittest.TestCase):
self.assertRaises(TypeError, op, y, x)
for op in equality_comparisons:
self.assertRaises(RuntimeError, op, y, x)
self.assertTrue(y is not x)
self.assertTrue(y['foo'] is y)
self.assertIsNot(y, x)
self.assertIs(y['foo'], y)
self.assertEqual(len(y), 1)
def test_deepcopy_keepalive(self):
......@@ -349,7 +371,7 @@ class TestCopy(unittest.TestCase):
x = C([42])
y = copy.deepcopy(x)
self.assertEqual(y, x)
self.assertTrue(y.foo is not x.foo)
self.assertIsNot(y.foo, x.foo)
def test_deepcopy_inst_deepcopy(self):
class C:
......@@ -362,8 +384,8 @@ class TestCopy(unittest.TestCase):
x = C([42])
y = copy.deepcopy(x)
self.assertEqual(y, x)
self.assertTrue(y is not x)
self.assertTrue(y.foo is not x.foo)
self.assertIsNot(y, x)
self.assertIsNot(y.foo, x.foo)
def test_deepcopy_inst_getinitargs(self):
class C:
......@@ -376,8 +398,8 @@ class TestCopy(unittest.TestCase):
x = C([42])
y = copy.deepcopy(x)
self.assertEqual(y, x)
self.assertTrue(y is not x)
self.assertTrue(y.foo is not x.foo)
self.assertIsNot(y, x)
self.assertIsNot(y.foo, x.foo)
def test_deepcopy_inst_getstate(self):
class C:
......@@ -390,8 +412,8 @@ class TestCopy(unittest.TestCase):
x = C([42])
y = copy.deepcopy(x)
self.assertEqual(y, x)
self.assertTrue(y is not x)
self.assertTrue(y.foo is not x.foo)
self.assertIsNot(y, x)
self.assertIsNot(y.foo, x.foo)
def test_deepcopy_inst_setstate(self):
class C:
......@@ -404,8 +426,8 @@ class TestCopy(unittest.TestCase):
x = C([42])
y = copy.deepcopy(x)
self.assertEqual(y, x)
self.assertTrue(y is not x)
self.assertTrue(y.foo is not x.foo)
self.assertIsNot(y, x)
self.assertIsNot(y.foo, x.foo)
def test_deepcopy_inst_getstate_setstate(self):
class C:
......@@ -420,8 +442,8 @@ class TestCopy(unittest.TestCase):
x = C([42])
y = copy.deepcopy(x)
self.assertEqual(y, x)
self.assertTrue(y is not x)
self.assertTrue(y.foo is not x.foo)
self.assertIsNot(y, x)
self.assertIsNot(y.foo, x.foo)
def test_deepcopy_reflexive_inst(self):
class C:
......@@ -429,8 +451,8 @@ class TestCopy(unittest.TestCase):
x = C()
x.foo = x
y = copy.deepcopy(x)
self.assertTrue(y is not x)
self.assertTrue(y.foo is y)
self.assertIsNot(y, x)
self.assertIs(y.foo, y)
# _reconstruct()
......@@ -440,9 +462,9 @@ class TestCopy(unittest.TestCase):
return ""
x = C()
y = copy.copy(x)
self.assertTrue(y is x)
self.assertIs(y, x)
y = copy.deepcopy(x)
self.assertTrue(y is x)
self.assertIs(y, x)
def test_reconstruct_nostate(self):
class C(object):
......@@ -451,9 +473,9 @@ class TestCopy(unittest.TestCase):
x = C()
x.foo = 42
y = copy.copy(x)
self.assertTrue(y.__class__ is x.__class__)
self.assertIs(y.__class__, x.__class__)
y = copy.deepcopy(x)
self.assertTrue(y.__class__ is x.__class__)
self.assertIs(y.__class__, x.__class__)
def test_reconstruct_state(self):
class C(object):
......@@ -467,7 +489,7 @@ class TestCopy(unittest.TestCase):
self.assertEqual(y, x)
y = copy.deepcopy(x)
self.assertEqual(y, x)
self.assertTrue(y.foo is not x.foo)
self.assertIsNot(y.foo, x.foo)
def test_reconstruct_state_setstate(self):
class C(object):
......@@ -483,7 +505,7 @@ class TestCopy(unittest.TestCase):
self.assertEqual(y, x)
y = copy.deepcopy(x)
self.assertEqual(y, x)
self.assertTrue(y.foo is not x.foo)
self.assertIsNot(y.foo, x.foo)
def test_reconstruct_reflexive(self):
class C(object):
......@@ -491,8 +513,8 @@ class TestCopy(unittest.TestCase):
x = C()
x.foo = x
y = copy.deepcopy(x)
self.assertTrue(y is not x)
self.assertTrue(y.foo is y)
self.assertIsNot(y, x)
self.assertIs(y.foo, y)
# Additions for Python 2.3 and pickle protocol 2
......@@ -506,12 +528,12 @@ class TestCopy(unittest.TestCase):
x = C([[1, 2], 3])
y = copy.copy(x)
self.assertEqual(x, y)
self.assertTrue(x is not y)
self.assertTrue(x[0] is y[0])
self.assertIsNot(x, y)
self.assertIs(x[0], y[0])
y = copy.deepcopy(x)
self.assertEqual(x, y)
self.assertTrue(x is not y)
self.assertTrue(x[0] is not y[0])
self.assertIsNot(x, y)
self.assertIsNot(x[0], y[0])
def test_reduce_5tuple(self):
class C(dict):
......@@ -523,12 +545,12 @@ class TestCopy(unittest.TestCase):
x = C([("foo", [1, 2]), ("bar", 3)])
y = copy.copy(x)
self.assertEqual(x, y)
self.assertTrue(x is not y)
self.assertTrue(x["foo"] is y["foo"])
self.assertIsNot(x, y)
self.assertIs(x["foo"], y["foo"])
y = copy.deepcopy(x)
self.assertEqual(x, y)
self.assertTrue(x is not y)
self.assertTrue(x["foo"] is not y["foo"])
self.assertIsNot(x, y)
self.assertIsNot(x["foo"], y["foo"])
def test_copy_slots(self):
class C(object):
......@@ -536,7 +558,7 @@ class TestCopy(unittest.TestCase):
x = C()
x.foo = [42]
y = copy.copy(x)
self.assertTrue(x.foo is y.foo)
self.assertIs(x.foo, y.foo)
def test_deepcopy_slots(self):
class C(object):
......@@ -545,7 +567,7 @@ class TestCopy(unittest.TestCase):
x.foo = [42]
y = copy.deepcopy(x)
self.assertEqual(x.foo, y.foo)
self.assertTrue(x.foo is not y.foo)
self.assertIsNot(x.foo, y.foo)
def test_deepcopy_dict_subclass(self):
class C(dict):
......@@ -562,7 +584,7 @@ class TestCopy(unittest.TestCase):
y = copy.deepcopy(x)
self.assertEqual(x, y)
self.assertEqual(x._keys, y._keys)
self.assertTrue(x is not y)
self.assertIsNot(x, y)
x['bar'] = 1
self.assertNotEqual(x, y)
self.assertNotEqual(x._keys, y._keys)
......@@ -575,8 +597,8 @@ class TestCopy(unittest.TestCase):
y = copy.copy(x)
self.assertEqual(list(x), list(y))
self.assertEqual(x.foo, y.foo)
self.assertTrue(x[0] is y[0])
self.assertTrue(x.foo is y.foo)
self.assertIs(x[0], y[0])
self.assertIs(x.foo, y.foo)
def test_deepcopy_list_subclass(self):
class C(list):
......@@ -586,8 +608,8 @@ class TestCopy(unittest.TestCase):
y = copy.deepcopy(x)
self.assertEqual(list(x), list(y))
self.assertEqual(x.foo, y.foo)
self.assertTrue(x[0] is not y[0])
self.assertTrue(x.foo is not y.foo)
self.assertIsNot(x[0], y[0])
self.assertIsNot(x.foo, y.foo)
def test_copy_tuple_subclass(self):
class C(tuple):
......@@ -604,8 +626,8 @@ class TestCopy(unittest.TestCase):
self.assertEqual(tuple(x), ([1, 2], 3))
y = copy.deepcopy(x)
self.assertEqual(tuple(y), ([1, 2], 3))
self.assertTrue(x is not y)
self.assertTrue(x[0] is not y[0])
self.assertIsNot(x, y)
self.assertIsNot(x[0], y[0])
def test_getstate_exc(self):
class EvilState(object):
......@@ -633,10 +655,10 @@ class TestCopy(unittest.TestCase):
obj = C()
x = weakref.ref(obj)
y = _copy(x)
self.assertTrue(y is x)
self.assertIs(y, x)
del obj
y = _copy(x)
self.assertTrue(y is x)
self.assertIs(y, x)
def test_copy_weakref(self):
self._check_weakref(copy.copy)
......@@ -652,7 +674,7 @@ class TestCopy(unittest.TestCase):
u[a] = b
u[c] = d
v = copy.copy(u)
self.assertFalse(v is u)
self.assertIsNot(v, u)
self.assertEqual(v, u)
self.assertEqual(v[a], b)
self.assertEqual(v[c], d)
......@@ -682,8 +704,8 @@ class TestCopy(unittest.TestCase):
v = copy.deepcopy(u)
self.assertNotEqual(v, u)
self.assertEqual(len(v), 2)
self.assertFalse(v[a] is b)
self.assertFalse(v[c] is d)
self.assertIsNot(v[a], b)
self.assertIsNot(v[c], d)
self.assertEqual(v[a].i, b.i)
self.assertEqual(v[c].i, d.i)
del c
......@@ -702,12 +724,12 @@ class TestCopy(unittest.TestCase):
self.assertNotEqual(v, u)
self.assertEqual(len(v), 2)
(x, y), (z, t) = sorted(v.items(), key=lambda pair: pair[0].i)
self.assertFalse(x is a)
self.assertIsNot(x, a)
self.assertEqual(x.i, a.i)
self.assertTrue(y is b)
self.assertFalse(z is c)
self.assertIs(y, b)
self.assertIsNot(z, c)
self.assertEqual(z.i, c.i)
self.assertTrue(t is d)
self.assertIs(t, d)
del x, y, z, t
del d
self.assertEqual(len(v), 1)
......@@ -720,7 +742,7 @@ class TestCopy(unittest.TestCase):
f.b = f.m
g = copy.deepcopy(f)
self.assertEqual(g.m, g.b)
self.assertTrue(g.b.__self__ is g)
self.assertIs(g.b.__self__, g)
g.b()
......
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