python (3.12.0)
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subclass, specify in the constructor arguments the name of the test method
that the instance is to execute.
Test authors should subclass TestCase for their own tests. Construction
and deconstruction of the test's environment ('fixture') can be
implemented by overriding the 'setUp' and 'tearDown' methods respectively.
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of the classes are instantiated automatically by parts of the framework
in order to be run.
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* failureException: determines which exception will be raised when
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exception will be deemed to have 'failed' rather than 'errored'.
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objects used in assert methods) will be printed on failure in *addition*
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| || | _ | j j | j d 5 d ddd | j j s*| j j }|.|j r"t | j j rt || _ y# 1 sw Y mxY w# || _ w xY ww)aP Return a context manager that will return the enclosed block
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assertTruezTestCase.assertTrue s7 %%c+;io+MNC'', , r c | j s|xs |S ||S |d|S # t $ r t | dt | cY S w xY w)a Honour the longMessage attribute when generating failure messages.
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z : ) longMessageUnicodeDecodeErrorr )r" r r s r r zTestCase._formatMessage s[ %+ % ; I !,S1 1! I!*;!73 H H Is "AAc T t || } |j d|| d}S # d}w xY w)a= Fail unless an exception of class expected_exception is raised
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unexpected exception.
If called with the callable and arguments omitted, will return a
context object used like this::
with self.assertRaises(SomeException):
do_something()
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is used as a context object.
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the 'exception' attribute. This allows you to inspect the
exception after the assertion::
with self.assertRaises(SomeException) as cm:
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the_exception = cm.exception
self.assertEqual(the_exception.error_code, 3)
assertRaisesNr r )r" expected_exceptionrW rX contexts r rc zTestCase.assertRaises s3 4 ''94@ >>.$? GdGs # 'c @ t || }|j d|| S )a Fail unless a warning of class warnClass is triggered
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out, or raised as an exception.
If called with the callable and arguments omitted, will return a
context object used like this::
with self.assertWarns(SomeWarning):
do_something()
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is used as a context object.
The context manager keeps a reference to the first matching
warning as the 'warning' attribute; similarly, the 'filename'
and 'lineno' attributes give you information about the line
of Python code from which the warning was triggered.
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with self.assertWarns(SomeWarning) as cm:
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the_warning = cm.warning
self.assertEqual(the_warning.some_attribute, 147)
assertWarnsr r )r" expected_warningrW rX rf s r rh zTestCase.assertWarns s$ 8 &&6=~~mT6::r c & ddl m} || ||d S )a Fail unless a log message of level *level* or higher is emitted
on *logger_name* or its children. If omitted, *level* defaults to
INFO and *logger* defaults to the root logger.
This method must be used as a context manager, and will yield
a recording object with two attributes: `output` and `records`.
At the end of the context manager, the `output` attribute will
be a list of the matching formatted log messages and the
`records` attribute will be a list of the corresponding LogRecord
objects.
Example::
with self.assertLogs('foo', level='INFO') as cm:
logging.getLogger('foo').info('first message')
logging.getLogger('foo.bar').error('second message')
self.assertEqual(cm.output, ['INFO:foo:first message',
'ERROR:foo.bar:second message'])
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assertLogszTestCase.assertLogs. s * -!$uEEr c & ddl m} || ||d S )z Fail unless no log messages of level *level* or higher are emitted
on *logger_name* or its children.
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r rl Trn rp rr s r assertNoLogszTestCase.assertNoLogsF s -!$tDDr c t | t | u rD| j j t | }| t |t r t | | }|S | j S )a Get a detailed comparison function for the types of the two args.
Returns: A callable accepting (first, second, msg=None) that will
raise a failure exception if first != second with a useful human
readable error message for those types.
)rH r getrg r( r6 _baseAssertEqual)r" firstsecondasserters r _getAssertEqualityFuncz TestCase._getAssertEqualityFuncO s[ " ;$v, &0044T%[AH# h, &tX 6H $$$r c r ||k( s2dt || z }| j || }| j | y)z:The default assertEqual implementation, not type specific.%s != %sN)r r r> )r" r{ r| r r s r rz zTestCase._baseAssertEquali sC $';E6'JJK%%c;7C'', , r c > | j || } |||| y)z[Fail if the two objects are unequal as determined by the '=='
operator.
)r N)r~ )r" r{ r| r assertion_funcs r assertEqualzTestCase.assertEqualp s" 44UFCuf#.r c ||k7 s:| j |t | dt | }| j | y)zYFail if the two objects are equal as determined by the '!='
operator.
== NrY )r" r{ r| r s r assertNotEqualzTestCase.assertNotEqualw sI %%c59I:CF:K,M NC'', , r c ~ ||k( ry|
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a' Fail if the two objects are unequal as determined by their
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as significant digits (measured from the most significant digit).
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compare almost equal.
N specify delta or places not bothz != within delta ( difference) r z places (rL absr roundr r> r" r{ r| placesr deltadiffr s r assertAlmostEqualzTestCase.assertAlmostEqual s F? !3 >? ?56>" u} % &!% $ !K ~T6"a' % &!$ !K
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a Fail if the two objects are equal as determined by their
difference rounded to the given number of decimal places
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difference between the two objects is less than the given delta.
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as significant digits (measured from the most significant digit).
Objects that are equal automatically fail.
Nr r r r r r r z placesr r s r assertNotAlmostEqualz TestCase.assertNotAlmostEqual s !3 >? ?56>" VO % &!% $ !K ~VOtV)<)A9B59I9B69J9?AK !!#{3##C((r c |d|j }t || s | j d|dt | t || s"| j d|dt | d}d} t | }| t | }|||k( ryd|j ft || z z }t t D ]+ } || }
|| } |
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t t f$ r |d||fz z
}Y jw xY w)aA An equality assertion for ordered sequences (like lists and tuples).
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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.
NzFirst sequence is not a r zSecond sequence is not a sequencez(First %s has no length. Non-sequence?z)Second %s has no length. Non-sequence?z%ss differ: %s != %s
z(
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z(Unable to index element %d of second %s
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rg r> r lenrL NotImplementedError
capitalizer rangemin
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seq_type_name differinglen1len2iitem1item2r diffMsgs r assertSequenceEqualz TestCase.assertSequenceEqual s $ - -M dH-+++8)D/-K L L dH-+++8)D/-K L L 'M #t9D
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Kc n | j }|t | |k r||z S |t t | z z S r0 )maxDiffr DIFF_OMITTED)r" r r max_diffs r r zTestCase._truncateMessage3 s: << s4yH 4T> !,T233r c 6 | j |||t y)a A list-specific equality assertion.
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msg: Optional message to use on failure instead of a list of
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r N)r r )r" list1list2r s r r zTestCase.assertListEqual9 s
sT Br c 6 | j |||t y)a A tuple-specific equality assertion.
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r N)r r )r" tuple1tuple2r s r r zTestCase.assertTupleEqualE s
u Er c |j | } |j | }ssyg }|r2|j d |D ] }|j t | r2|j d |D ] }|j t | dj
| } | j | j || y# t $ r }| j d|z Y d}~d}~wt $ r }| j d|z Y d}~d}~ww xY w# t $ r }| j d|z Y d}~d}~wt $ r }| j d|z Y d}~:d}~ww xY w)a A set-specific equality assertion.
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set1: The first set to compare.
set2: The second set to compare.
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is optimized for sets specifically (parameters must support a
difference method).
z/invalid type when attempting set difference: %sNz2first argument does not support set difference: %sz3second argument does not support set difference: %sz*Items in the first set but not the second:z*Items in the second set but not the first:r )
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M IIG!K L L Q IIKaO P P QsF C D DC)) D5DD E$ D99 E$E E$c ||vr;t | dt | }| j | j || yy)zDJust like self.assertTrue(a in b), but with a nicer default message. not found in Nr rW r r" member containerr r s r assertInzTestCase.assertIn{ s@ "2;F2C2;I2FHK IId))#{; < #r c ||v r;t | dt | }| j | j || yy)zHJust like self.assertTrue(a not in b), but with a nicer default message.z unexpectedly found in Nr r s r assertNotInzTestCase.assertNotIn s@ Y ;DV;L8A)8LNK IId))#{; < r c ||ur;t | dt | }| j | j || yy)zDJust like self.assertTrue(a is b), but with a nicer default message.z is not Nr r" expr1expr2r r s r assertIszTestCase.assertIs s? ,5e,<-6u-=?K IId))#{; < r c l ||u r0dt | }| j | j || yy)zHJust like self.assertTrue(a is not b), but with a nicer default message.zunexpectedly identical: Nr r s r assertIsNotzTestCase.assertIsNot s4 E>:CE:JLK IId))#{; < r c | j |t d | j |t d ||k7 rdt || z }ddj t j
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j | j z }| j || }| j | j || y y )Nz"First argument is not a dictionaryz#Second argument is not a dictionaryr r ) assertIsInstancer r r r r r r r r rW r )r" d1d2r r r s r r zTestCase.assertDictEqual s b$(LM b$(MN
8$';B'CCK499W]]!>>"-88:!>>"-88:&< = =D // TBK IId))#{; <
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times, without regard to order.
self.assertEqual(Counter(list(first)),
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Example:
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- [0, 0, 1] and [0, 1] compare unequal.
Nz Element counts were not equal:
z First has %d, Second has %d: %rr )
r collectionsCounterr rL r r r r rW ) r" r{ r| r first_seq
second_seq differencesr r r r s r assertCountEqualzTestCase.assertCountEqual s !%U T&\: F '' 2E ((4F
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z-Assert that two multi-line strings are equal.z First argument is not a stringz Second argument is not a stringr T)keependsr rn N)
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firstlines secondlinesr r s
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K"HIID // TBK IId))#{; <9 r c ||k s;t | dt | }| j | j || yy)zCJust like self.assertTrue(a < b), but with a nicer default message.z not less than Nr r" abr r s r
assertLesszTestCase.assertLess s9 1u3<Q<1 NK IId))#{; < r c ||k s;t | dt | }| j | j || yy)zDJust like self.assertTrue(a <= b), but with a nicer default message.z not less than or equal to Nr r s r assertLessEqualzTestCase.assertLessEqual s: Av?H|YWX\ZK IId))#{; < r c ||kD s;t | dt | }| j | j || yy)zCJust like self.assertTrue(a > b), but with a nicer default message.z not greater than Nr r s r
assertGreaterzTestCase.assertGreater s9 1u6?lIaLQK IId))#{; < r c ||k\ s;t | dt | }| j | j || yy)zDJust like self.assertTrue(a >= b), but with a nicer default message.z not greater than or equal to Nr r s r assertGreaterEqualzTestCase.assertGreaterEqual s< AvBKA,PYZ[P\]K IId))#{; < r c h |0t | d}| j | j || yy)zCSame as self.assertTrue(obj is None), with a nicer default message.Nz is not Noner r" rC r r s r assertIsNonezTestCase.assertIsNone s1 ?.7n>K IId))#{; < r c P |$d}| j | j || yy)z(Included for symmetry with assertIsNone.Nzunexpectedly None)rW r r s r assertIsNotNonezTestCase.assertIsNotNone s* ;-K IId))#{; < r c t || s2t | d|}| j | j || yy)zTSame as self.assertTrue(isinstance(obj, cls)), with a nicer
default message.z is not an instance of Nrg r rW r r" rC rO r r s r r zTestCase.assertIsInstance s: #s#;DS>3OK IId))#{; < $r c t || r2t | d|}| j | j || yy)z,Included for symmetry with assertIsInstance.z is an instance of Nr r s r assertNotIsInstancez TestCase.assertNotIsInstance s8 c3 7@~sKK IId))#{; < r c B t || | }|j d|| S )a Asserts that the message in a raised exception matches a regex.
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msg: Optional message used in case of failure. Can only be used
when assertRaisesRegex is used as a context manager.
assertRaisesRegexrd )r" re r rW rX rf s r r zTestCase.assertRaisesRegex s' ''94 P~~ 14@@r c B t || | }|j d|| S )a Asserts that the message in a triggered warning matches a regexp.
Basic functioning is similar to assertWarns() with the addition
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are considered successful matches.
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expected_warning: Warning class expected to be triggered.
expected_regex: Regex (re.Pattern object or string) expected
to be found in error message.
args: Function to be called and extra positional args.
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msg: Optional message used in case of failure. Can only be used
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assertWarnsRegexri )r" rj r rW rX rf s r r zTestCase.assertWarnsRegex& s' &&6nM~~ 0$??r c t |t t f rt j | }|j | s5d|j d|}| j || }| j | y)z=Fail the test unless the text matches the regular expression.zRegex didn't match: r N) rg r( bytesr r r r r r> )r" textr r r s r assertRegexzTestCase.assertRegex9 sh nsEl 3 ZZ 7N $$T* &&.K %%c;7C'', , +r c . t |t t f rt j | }|j | }|rWd||j
|j d|j d|}| j || }| j | y)z9Fail the test if the text matches the regular expression.zRegex matched: z matches z in N) rg r( r r r r startendr r r> )r" r unexpected_regexr matchr s r assertNotRegexzTestCase.assertNotRegexE s &e 5 !zz*: ; ''- U[[]UYY[1 ((K
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r r r AssertionErrorr> r` r r r r# r r r r r r r r r r r r r r r r r r! r1 r2 _subtest_msg_sentinelr, r+ r. r2 r4 r: r< r> rJ rF rN rQ rS rU rW r\ r^ r rc rh ru rw r~ rz r r r r r r r r r r r r r r r r r r r r r r r r r r r r
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FunctionTestCaseaI A test case that wraps a test function.
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