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assert_deepequal supports callback for equality testing

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This commit is contained in:
John Dennis 2011-06-15 09:05:58 -04:00 committed by Rob Crittenden
parent 1a7d05cc0f
commit 4c1bfdb919
1 changed files with 10 additions and 1 deletions
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11
tests/util.py
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@ -266,6 +266,10 @@ def assert_deepequal(expected, got, doc='', stack=tuple()):
"""
Recursively check for type and equality.
If a value in expected is callable then it will used as a callback to
test for equality on the got value. The callback is passed the got
value and returns True if equal, False otherwise.
If the tests fails, it will raise an ``AssertionError`` with detailed
information, including the path to the offending value. For example:
@ -288,7 +292,7 @@ def assert_deepequal(expected, got, doc='', stack=tuple()):
expected = list(expected)
if isinstance(got, tuple):
got = list(got)
if not (isinstance(expected, Fuzzy) or type(expected) is type(got)):
if not (isinstance(expected, Fuzzy) or callable(expected) or type(expected) is type(got)):
raise AssertionError(
TYPE % (doc, type(expected), type(got), expected, got, stack)
)
@ -312,6 +316,11 @@ def assert_deepequal(expected, got, doc='', stack=tuple()):
e_sub = expected[key]
g_sub = got[key]
assert_deepequal(e_sub, g_sub, doc, stack + (key,))
elif callable(expected):
if not expected(got):
raise AssertionError(
VALUE % (doc, expected, got, stack)
)
elif expected != got:
raise AssertionError(
VALUE % (doc, expected, got, stack)