常用断言：
1.assertEqual(self, first, second, msg=None)
--判断两个参数相等：first == second
2.assertNotEqual(self, first, second, msg=None)
--判断两个参数不相等：first ！= second
3.assertIn(self, member, container, msg=None)
--判断是字符串是否包含：member in container
4.assertNotIn(self, member, container, msg=None)
--判断是字符串是否不包含：member not in container
5.assertTrue(self, expr, msg=None)
--判断是否为真：expr is True
6.assertFalse(self, expr, msg=None)
--判断是否为假：expr is False
7.assertIsNone(self, obj, msg=None)
--判断是否为None：obj is None
8.assertIsNotNone(self, obj, msg=None)
--判断是否不为None：obj is not None
2.所有断言：
assertAlmostEqual(self, first, second, places=None, msg=None, delta=None)
Fail if the two objects are unequal as determined by their
difference rounded to the given number of decimal places
(default 7) and comparing to zero, or by comparing that the
between the two objects is more than the given delta.
Note that decimal places (from zero) are usually not the same
as significant digits (measured from the most signficant digit).
If the two objects compare equal then they will automatically
compare almost equal.
assertAlmostEquals = assertAlmostEqual(self, first, second, places=None, msg=None, delta=None)
assertDictContainsSubset(self, expected, actual, msg=None)
Checks whether actual is a superset of expected.
assertDictEqual(self, d1, d2, msg=None)
assertEqual(self, first, second, msg=None)
Fail if the two objects are unequal as determined by the '=='
operator.
assertEquals = assertEqual(self, first, second, msg=None)
assertFalse(self, expr, msg=None)
Check that the expression is false.
assertGreater(self, a, b, msg=None)
Just like self.assertTrue(a > b), but with a nicer default message.
assertGreaterEqual(self, a, b, msg=None)
Just like self.assertTrue(a >= b), but with a nicer default message.
assertIn(self, member, container, msg=None)
Just like self.assertTrue(a in b), but with a nicer default message.
assertIs(self, expr1, expr2, msg=None)
Just like self.assertTrue(a is b), but with a nicer default message.
assertIsInstance(self, obj, cls, msg=None)
Same as self.assertTrue(isinstance(obj, cls)), with a nicer
default message.
assertIsNone(self, obj, msg=None)
Same as self.assertTrue(obj is None), with a nicer default message.
assertIsNot(self, expr1, expr2, msg=None)
Just like self.assertTrue(a is not b), but with a nicer default message.
assertIsNotNone(self, obj, msg=None)
Included for symmetry with assertIsNone.
assertItemsEqual(self, expected_seq, actual_seq, msg=None)
An unordered sequence specific comparison. It asserts that
actual_seq and expected_seq have the same element counts.
Equivalent to::
self.assertEqual(Counter(iter(actual_seq)),
Counter(iter(expected_seq)))
Asserts that each element has the same count in both sequences.
Example:
- [0, 1, 1] and [1, 0, 1] compare equal.
- [0, 0, 1] and [0, 1] compare unequal.
assertLess(self, a, b, msg=None)
Just like self.assertTrue(a < b), but with a nicer default message.
assertLessEqual(self, a, b, msg=None)
Just like self.assertTrue(a <= b), but with a nicer default message.
assertListEqual(self, list1, list2, msg=None)
A list-specific equality assertion.
Args:
list1: The first list to compare.
list2: The second list to compare.
msg: Optional message to use on failure instead of a list of
differences.
assertMultiLineEqual(self, first, second, msg=None)
Assert that two multi-line strings are equal.
assertNotAlmostEqual(self, first, second, places=None, msg=None, delta=None)
Fail if the two objects are equal as determined by their
difference rounded to the given number of decimal places
(default 7) and comparing to zero, or by comparing that the
between the two objects is less than the given delta.
Note that decimal places (from zero) are usually not the same
as significant digits (measured from the most signficant digit).
Objects that are equal automatically fail.
assertNotAlmostEquals = assertNotAlmostEqual(self, first, second, places=None, msg=None, delta=None)
assertNotEqual(self, first, second, msg=None)
Fail if the two objects are equal as determined by the '!='
operator.
assertNotEquals = assertNotEqual(self, first, second, msg=None)
assertNotIn(self, member, container, msg=None)
Just like self.assertTrue(a not in b), but with a nicer default message.
assertNotIsInstance(self, obj, cls, msg=None)
Included for symmetry with assertIsInstance.
assertNotRegexpMatches(self, text, unexpected_regexp, msg=None)
Fail the test if the text matches the regular expression.
assertRaises(self, excClass, callableObj=None, *args, **kwargs)
Fail unless an exception of class excClass is raised
by callableObj when invoked with arguments args and keyword
arguments kwargs. If a different type of exception is
raised, it will not be caught, and the test case will be
deemed to have suffered an error, exactly as for an
unexpected exception.
If called with callableObj omitted or None, will return a
context object used like this::
with self.assertRaises(SomeException):
do_something()
The context manager keeps a reference to the exception as
the 'exception' attribute. This allows you to inspect the
exception after the assertion::
with self.assertRaises(SomeException) as cm:
do_something()
the_exception = cm.exception
self.assertEqual(the_exception.error_code, 3)
assertRaisesRegexp(self, expected_exception, expected_regexp, callable_obj=None, *args, **kwargs)
Asserts that the message in a raised exception matches a regexp.
Args:
expected_exception: Exception class expected to be raised.
expected_regexp: Regexp (re pattern object or string) expected
to be found in error message.
callable_obj: Function to be called.
args: Extra args.
kwargs: Extra kwargs.
assertRegexpMatches(self, text, expected_regexp, msg=None)
Fail the test unless the text matches the regular expression.
assertSequenceEqual(self, seq1, seq2, msg=None, seq_type=None)
An equality assertion for ordered sequences (like lists and tuples).
For the purposes of this function, a valid ordered sequence type is one
which can be indexed, has a length, and has an equality operator.
Args:
seq1: The first sequence to compare.
seq2: The second sequence to compare.
seq_type: The expected datatype of the sequences, or None if no
datatype should be enforced.
msg: Optional message to use on failure instead of a list of
differences.
assertSetEqual(self, set1, set2, msg=None)
A set-specific equality assertion.
Args:
set1: The first set to compare.
set2: The second set to compare.
msg: Optional message to use on failure instead of a list of
differences.
assertSetEqual uses ducktyping to support different types of sets, and
is optimized for sets specifically (parameters must support a
difference method).
assertTrue(self, expr, msg=None)
Check that the expression is true.
assertTupleEqual(self, tuple1, tuple2, msg=None)
A tuple-specific equality assertion.
Args:
tuple1: The first tuple to compare.
tuple2: The second tuple to compare.
msg: Optional message to use on failure instead of a list of
differences.