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Tests for the behaviour of unit tests.
Many tests in this module follow a simple pattern. A mixin is defined which
includes test methods for a certain feature. The mixin is inherited from twice,
once by a class also inheriting from SynchronousTestCase and once from a class
inheriting from TestCase. These two subclasses are named like
I{SynchronousFooTests} and I{AsynchronousFooTests}, where I{Foo} is related to
the name of the mixin. Sometimes the mixin is defined in another module, along
with the synchronous subclass. The mixin is imported into this module to define
the asynchronous subclass.
This pattern allows the same tests to be applied to the two base test case
classes trial provides, ensuring their behavior is the same.
Most new tests should be added in this pattern. Tests for functionality which
is intentionally only provided by TestCase, not SynchronousTestCase, is excepted
of course.
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Tests for the reporting of successful tests in the synchronous case.
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Tests for the reporting of skipping tests in L{twisted.trial.unittest.TestCase}.
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Tests for the reporting of skipping tests in the synchronous case.
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Tests for the reporting of skipping tests in the asynchronous case.
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Test the class skipping features in the synchronous case.
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Test the class skipping features in the asynchronous case.
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Tests for the individual test method I{expected failure} features of
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Ensure that we've got three test cases.
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C{setUp} is excluded from the failure expectation defined by a C{todo}
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C{tearDown} is excluded from the failure expectation defined by a C{todo}
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Test the class skipping features in the synchronous case.
See: L{twisted.trial.test.test_tests.TodoMixin}
z+twisted.trial.test.skipping.SynchronousTodoz0twisted.trial.test.skipping.SynchronousSetUpTodoz3twisted.trial.test.skipping.SynchronousTearDownTodoN�r) r* r+ r, r r� r� r� r r r r r� � �
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Test the class skipping features in the asynchronous case.
See: L{twisted.trial.test.test_tests.TodoMixin}
z,twisted.trial.test.skipping.AsynchronousTodoz1twisted.trial.test.skipping.AsynchronousSetUpTodoz4twisted.trial.test.skipping.AsynchronousTearDownTodoNr� r r r r r� � r� r� c @ rp )
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Tests for the class-wide I{expected failure} features of
L{twisted.trial.unittest.TestCase}.
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Ensure that we've got four test cases.
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to fail recorded as C{unexpectedSuccesses}. Additionally, no tests are
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Tests for the class-wide I{expected failure} features in the synchronous case.
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Tests for the class-wide I{expected failure} features in the asynchronous case.
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Tests for the I{expected failure} features of
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Tests for the expected failure case when the exact failure that is expected
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Tests for broken fixture helper methods in the synchronous case
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Tests for broken fixture helper methods in the asynchronous case
See: L{twisted.trial.test.test_tests.FixtureMixin}
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Tests for the warning suppression features of
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By default, tests should not force garbage collection.
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z4GarbageCollectionDefaultTests.test_collectNotDefaultN)r) r* r+ r, r� r r r r r� � r� c @ r� )�GarbageCollectionTestsz-
Test that, when force GC, it works.
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�z)GarbageCollectionTests.test_collectCalledN)r) r* r+ r, r� r r r r r� % r� r� c @ s< e Zd ZdZdd� Zdd� Ze�ed�dd� �Z d d
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d S ) �UnhandledDeferredTestsz\
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c C s( ddl m} t�� t|�d��| _dS )r0 r )�weird�test_unhandledDeferredN)�twisted.trial.testr� rD �disabler � TestBleeding�test1)r r� r r r r2 = s
�z UnhandledDeferredTests.setUpc C s* t �� }| �|� | �t|j�dd� dS )zo
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reported as errors.
r5 z(Unhandled deferred passed without noticeN)r r r� r rX r )r r1 r r r �test_isReportedI s
�z&UnhandledDeferredTests.test_isReportedz GC works differently on PyPy.c C sP t �� }| �|� | �� ttj�}| �|dd� | �� }| �t|�dd� dS )z�
Forcing garbage collection in the test should mean that there are
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r z unreachable cycle still existedz Errors logged after gc.collectN)r r r� �flushLoggedErrorsrX rD �garbager )r r1 �n�xr r r �test_doesntBleedT s
z'UnhandledDeferredTests.test_doesntBleedc C s t �� t �� | �� dS r� )rD rE �enabler� r# r r r r� e s z UnhandledDeferredTests.tearDownN) r) r* r+ r, r2 r� r �skipIfr r� r� r r r r r� 7 s
r� c sP e Zd ZdZ� fdd�Zdd� Zdd� Zdd � Zd
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Test the addCleanup method of TestCase.
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AddCleanupr: r# �r= r r r2 s s
zAddCleanupMixin.setUpc C �D | j j| j _| j �| j jd� | j �| j� | �ddg| j j� dS )zQ
Callables added with C{addCleanup} are run even if setUp fails.
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Callables added with C{addCleanup} are run even if setUp raises
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Callables added with C{addCleanup} should be called before C{tearDown}
in reverse order of addition.
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� d� dS )z�
Errors raised in cleanup functions should be treated like errors in
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r� r5 N) r: r �failr> r1 ru r r rX r �getErrorMessage�r r: �errorr r r � test_errorInCleanupIsCaptured� s z-AddCleanupMixin.test_errorInCleanupIsCapturedc C s� | j �| j jd� | j �| j jd� | j �| j� | �g d�| j j� | �dt| jj �� | jj \\}}| �|| j � | �|�
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r> r1 r r rX r r r r r r �&test_cleanupsContinueRunningAfterError� s z6AddCleanupMixin.test_cleanupsContinueRunningAfterErrorc C s� | j �| j jd� | j �| j jd� | j �| j� | �g d�| j j� | �dt| jj�� | jj\\}}\}}| �|| j � | �|| j � | �|� � d� | �|� � d� dS )zm
If more than one cleanup fails, then the test should fail with more
than one error.
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r> r1 r r rX r r )r r� �error1�test2�error2r r r �test_multipleErrorsReported� s z+AddCleanupMixin.test_multipleErrorsReported) r) r* r+ r, r2 r r r r r r �
__classcell__r r r� r r� n s
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Test the addCleanup method of TestCase in the synchronous case
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z1twisted.trial.test.skipping.SynchronousAddCleanupN)r) r* r+ r, r r� r r r r r � r� r c @ s e Zd ZdZed�Zdd� ZdS )�AsynchronousAddCleanupTestsz�
Test the addCleanup method of TestCase in the asynchronous case
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If an added callable returns a L{Deferred}, then the test should wait
until that L{Deferred} has fired before running the next cleanup
method.
c s& t �� }t�d|j| � |�� jj�S )Nr )r �Deferredr � callLater�callback� addCallbackr: r� )rd �dr# r r �cleanup� s zMAsynchronousAddCleanupTests.test_addCleanupWaitsForDeferreds.<locals>.cleanupr� r r Nr )r r r r# r � test_addCleanupWaitsForDeferreds� s
z<AsynchronousAddCleanupTests.test_addCleanupWaitsForDeferredsN)r) r* r+ r, r r� r r r r r r � s r c @ � e Zd ZdZdd� Zdd� ZdS )�SuiteClearingMixinzM
Tests for our extension that allows us to clear out a L{TestSuite}.
c C �B t �� }|�| �� � | �d|�� � t|� | �d|�� � dS )z_
Calling L{_clearSuite} on a populated L{TestSuite} removes
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z"SuiteClearingMixin.test_clearSuitec C r )z�
Calling L{_clearSuite} on a populated standard library
L{TestSuite} removes all tests.
This test is important since C{_clearSuite} operates by mutating
internal variables.
r5 r N)r r! r" r# r r% r r r r r �test_clearPyunitSuite� s
z(SuiteClearingMixin.test_clearPyunitSuiteN)r) r* r+ r, r$ r% r r r r r � s r c @ � e Zd ZdZejZdS )� SynchronousSuiteClearingTestsz�
Tests for our extension that allows us to clear out a L{TestSuite} in the
synchronous case.
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N�r) r* r+ r, r r� r# r r r r r' �
r' c @ � e Zd ZdZejZdS )� AsynchronousSuiteClearingTestsz�
Tests for our extension that allows us to clear out a L{TestSuite} in the
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See L{twisted.trial.test.test_tests.SuiteClearingMixin}
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d � Zd d
� Z dd� Z
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dd� ZdS )�TestDecoratorMixinz1
Tests for our test decoration features.
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Assert that the given decorated tests are equal.
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_originalTestN)r r= �getattrrF )r �observed�expected�observedOriginal�expectedOriginalr r r �assertTestsEqual' s �z#TestDecoratorMixin.assertTestsEqualc C sr | � |j|jd� | � t|j�t|j�d� t|j|j�D ]\}}t|dd�dur0| �||� q | �||� q dS )zS
Assert that the given test suites with decorated tests are equal.
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For decorated tests, C{run} uses a result adapter that preserves the
test decoration for calls to C{addError}, C{startTest} and the like.
See L{reporter._AdaptedReporter}.
r ��LoggingReporterN)r# r �
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decoratedTestr< r1 r r r � test_usesAdaptedReporterWithRun@ s
z2TestDecoratorMixin.test_usesAdaptedReporterWithRunc C s> | � � }t�|�}ddlm} |� }||� | �|j|� dS )z�
For decorated tests, C{__call__} uses a result adapter that preserves
the test decoration for calls to C{addError}, C{startTest} and the
like.
See L{reporter._AdaptedReporter}.
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z3TestDecoratorMixin.test_usesAdaptedReporterWithCallc C s, | � � }t�|tj�}| �t�|�|� dS )z�
Calling L{decorate} on a single test case returns the test case
decorated with the provided decorator.
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Calling L{decorate} on a test suite will return a test suite with
each test decorated with the provided decorator.
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Calling L{decorate} on a test suite will mutate the original suite.
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When decorating a test suite in-place, the number of references to the
test objects in that test suite should stay the same.
Previously, L{unittest.decorate} recreated a test suite, so the
original suite kept references to the test objects. This test is here
to ensure the problem doesn't reappear again.
� getrefcountNz*getrefcount not supported on this platform) r0 �sysr �SkipTestr# r! rD r= r )r rK r: r �count1�count2r r r � test_decorateTestSuiteReferences� s
z3TestDecoratorMixin.test_decorateTestSuiteReferencesc C sT | � � }t�t�|g�g�}t�|tj�}t�t�t�|�g�g�}| �||� dS )z�
Calling L{decorate} on a test suite with nested suites will return a
test suite that maintains the same structure, but with all tests
decorated.
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Calling L{decorate} on a test suite with already-decorated tests
decorates all of the tests in the suite again.
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Tests can be in non-standard suites. L{decorate} preserves the
non-standard suites when it decorates the tests.
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r- c @ r& )� SynchronousTestDecoratorTestsz�
Tests for our test decoration features in the synchronous case.
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Nr( r r r r rW � �
rW c @ r* )� AsynchronousTestDecoratorTestsz�
Tests for our test decoration features in the asynchronous case.
See L{twisted.trial.test.test_tests.TestDecoratorMixin}
Nr, r r r r rY � rX rY c @ r- )�MonkeyPatchMixinzF
Tests for the patch() helper method in L{unittest.TestCase}.
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originalValue� patchedValue�
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attribute.
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after the test has run.
r_ N) r: r` r^ r> r r� r r_ r] r# r r r �test_patchRestoredAfterRun� s z+MonkeyPatchMixin.test_patchRestoredAfterRunc C s. | j �| d| j�}|�� | �| j| j� dS )z�
C{patch()} return a L{monkey.MonkeyPatcher} object that can be used to
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r_ N)r: r` r^ �restorer r_ r] �r r` r r r �test_revertDuringTest� s z&MonkeyPatchMixin.test_revertDuringTestc C s6 | j �| d| j�}|�� |�� | �| j| j� dS )zq
The returned L{monkey.MonkeyPatcher} object can re-apply the patch
during the test run.
r_ N)r: r` r^ rc r r_ rd r r r �test_revertAndRepatch� s z&MonkeyPatchMixin.test_revertAndRepatchc C sd | j �| d| j� | �| j| j� | j �| dd� | �| jd� | j �t�� � | �| j| j� dS )zW
Successive patches are applied and reverted just like a single patch.
r_ z second valueN) r: r` r^ r r_ r> r r� r] r# r r r �test_successivePatches s z'MonkeyPatchMixin.test_successivePatchesN)
r) r* r+ r, r2 ra rb re rf rg r r r r rZ � s
rZ c @ r& )�SynchronousMonkeyPatchTestsz�
Tests for the patch() helper method in the synchronous case.
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Nr( r r r r rh rX rh c @ r* )� AsynchronousMonkeyPatchTestsz�
Tests for the patch() helper method in the asynchronous case.
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Nr, r r r r ri rX ri c @ r� ) �IterateTestsMixinz]
L{_iterateTests} returns a list of all test cases in a test suite or test
case.
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L{_iterateTests} on a single test case returns a list containing that
test case.
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L{_iterateTests} on a test suite that contains a single test case
returns a list containing that test case.
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�r r: r r r r � test_iterateSingletonTestSuite1 s z0IterateTestsMixin.test_iterateSingletonTestSuitec C s6 | � � }t�t�|g�g�}| �|gtt|��� dS )zP
L{_iterateTests} returns tests that are in nested test suites.
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L{_iterateTests} returns tests in left-to-right, depth-first order.
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Check that L{_iterateTests} returns a list of all test cases in a test suite
or test case for synchronous tests.
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Nr( r r r r rq K r) rq c @ r* )� AsynchronousIterateTestsTestsz�
Check that L{_iterateTests} returns a list of all test cases in a test suite
or test case for asynchronous tests.
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Nr, r r r r rr V r) rr c @ r )�TrialGeneratorFunctionTestsz=
Tests for generator function methods in test cases.
c C � G dd� dt j�}|d�}t�� }|�|� | �t|j�d� | �t|j�d� | � d|jd d j
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purposes.
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zcTrialGeneratorFunctionTests.test_errorOnGeneratorFunction.<locals>.GeneratorTestCase.test_generatorN�r) r* r+ r, rx r r r r �GeneratorTestCasel r� r{ rx r r5 z GeneratorTestCase.test_generatorz+GeneratorTestCase testMethod=test_generator�4is a generator function and therefore will never runN) r r# r r r> r rX r! r �assertInr� �args)r r{ �testCaser1 r r r � test_errorOnGeneratorFunctionf s"
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In a SynchronousTestCase, a test method which is a generator function
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A fake SynchronousTestCase for testing purposes.
c s ru rv rw r# r r r rx � ry z�TrialGeneratorFunctionTests.test_synchronousTestCaseErrorOnGeneratorFunction.<locals>.GeneratorSynchronousTestCase.test_generatorNrz r r r r � GeneratorSynchronousTestCase� r� r� rx r r5 z+GeneratorSynchronousTestCase.test_generatorz6GeneratorSynchronousTestCase testMethod=test_generatorr| N) r r� r r r> r rX r! r r} r� r~ )r r� r r1 r r r �0test_synchronousTestCaseErrorOnGeneratorFunction� s$
���zLTrialGeneratorFunctionTests.test_synchronousTestCaseErrorOnGeneratorFunctionN)r) r* r+ r, r� r� r r r r rs a s $rs )Ir, rD rL r r rB �ior �twisted.internetr r �twisted.python.compatr �twisted.python.reflectr �
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