本文整理汇总了Python中sqlalchemy.util.itertools_filterfalse方法的典型用法代码示例。如果您正苦于以下问题：Python util.itertools_filterfalse方法的具体用法？Python util.itertools_filterfalse怎么用？Python util.itertools_filterfalse使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类sqlalchemy.util的用法示例。
在下文中一共展示了util.itertools_filterfalse方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: assert_unordered_result
# 需要导入模块: from sqlalchemy import util [as 别名]
# 或者: from sqlalchemy.util import itertools_filterfalse [as 别名]
def assert_unordered_result(self, result, cls, *expected):
"""As assert_result, but the order of objects is not considered.
The algorithm is very expensive but not a big deal for the small
numbers of rows that the test suite manipulates.
"""
class immutabledict(dict):
def __hash__(self):
return id(self)
found = util.IdentitySet(result)
expected = set([immutabledict(e) for e in expected])
for wrong in util.itertools_filterfalse(lambda o:
isinstance(o, cls), found):
fail('Unexpected type "%s", expected "%s"' % (
type(wrong).__name__, cls.__name__))
if len(found) != len(expected):
fail('Unexpected object count "%s", expected "%s"' % (
len(found), len(expected)))
NOVALUE = object()
def _compare_item(obj, spec):
for key, value in spec.items():
if isinstance(value, tuple):
try:
self.assert_unordered_result(
getattr(obj, key), value[0], *value[1])
except AssertionError:
return False
else:
if getattr(obj, key, NOVALUE) != value:
return False
return True
for expected_item in expected:
for found_item in found:
if _compare_item(found_item, expected_item):
found.remove(found_item)
break
else:
fail(
"Expected %s instance with attributes %s not found." % (
cls.__name__, repr(expected_item)))
return True 示例2: assert_unordered_result
# 需要导入模块: from sqlalchemy import util [as 别名]
# 或者: from sqlalchemy.util import itertools_filterfalse [as 别名]
def assert_unordered_result(self, result, cls, *expected):
"""As assert_result, but the order of objects is not considered.
The algorithm is very expensive but not a big deal for the small
numbers of rows that the test suite manipulates.
"""
class immutabledict(dict):
def __hash__(self):
return id(self)
found = util.IdentitySet(result)
expected = {immutabledict(e) for e in expected}
for wrong in util.itertools_filterfalse(lambda o:
isinstance(o, cls), found):
fail('Unexpected type "%s", expected "%s"' % (
type(wrong).__name__, cls.__name__))
if len(found) != len(expected):
fail('Unexpected object count "%s", expected "%s"' % (
len(found), len(expected)))
NOVALUE = object()
def _compare_item(obj, spec):
for key, value in spec.items():
if isinstance(value, tuple):
try:
self.assert_unordered_result(
getattr(obj, key), value[0], *value[1])
except AssertionError:
return False
else:
if getattr(obj, key, NOVALUE) != value:
return False
return True
for expected_item in expected:
for found_item in found:
if _compare_item(found_item, expected_item):
found.remove(found_item)
break
else:
fail(
"Expected %s instance with attributes %s not found." % (
cls.__name__, repr(expected_item)))
return True 示例3: assert_unordered_result
# 需要导入模块: from sqlalchemy import util [as 别名]
# 或者: from sqlalchemy.util import itertools_filterfalse [as 别名]
def assert_unordered_result(self, result, cls, *expected):
"""As assert_result, but the order of objects is not considered.
The algorithm is very expensive but not a big deal for the small
numbers of rows that the test suite manipulates.
"""
class immutabledict(dict):
def __hash__(self):
return id(self)
found = util.IdentitySet(result)
expected = set([immutabledict(e) for e in expected])
for wrong in util.itertools_filterfalse(lambda o: type(o) == cls, found):
fail('Unexpected type "%s", expected "%s"' % (
type(wrong).__name__, cls.__name__))
if len(found) != len(expected):
fail('Unexpected object count "%s", expected "%s"' % (
len(found), len(expected)))
NOVALUE = object()
def _compare_item(obj, spec):
for key, value in spec.items():
if isinstance(value, tuple):
try:
self.assert_unordered_result(
getattr(obj, key), value[0], *value[1])
except AssertionError:
return False
else:
if getattr(obj, key, NOVALUE) != value:
return False
return True
for expected_item in expected:
for found_item in found:
if _compare_item(found_item, expected_item):
found.remove(found_item)
break
else:
fail(
"Expected %s instance with attributes %s not found." % (
cls.__name__, repr(expected_item)))
return True