twisted.trial._dist.test.test_disttrial.DistTrialRunnerTests

Tests for DistTrialRunner.

Method	setUp	Create a runner for testing.
Method	reap	Reap the workers and trap `ConnectionDone` failures on their `endDeferred`s.
Method	getFakeSchedulerAndEternalCooperator	Helper to create fake scheduler and cooperator in tests.
Method	test_writeResults	`DistTrialRunner.writeResults` writes to the stream specified in the init.
Method	test_createLocalWorkers	`createLocalWorkers` iterates the list of protocols and create one `LocalWorker` for each.
Method	test_launchWorkerProcesses	Given a `spawnProcess` function, `launchWorkerProcess` launches a python process with an existing path as its argument.
Method	test_run	`run` starts the reactor exactly once and spawns each of the workers exactly once.
Method	test_runUsedDirectory	`DistTrialRunner` checks if the test directory is already locked, and if it is generates a name based on it.
Method	test_minimalWorker	`DistTrialRunner` doesn't try to start more workers than the number of tests.
Method	test_runUncleanWarnings	Running with the `unclean-warnings` option makes `DistTrialRunner` uses the `UncleanWarningsReporterWrapper`.
Method	test_runWithoutTest	When the suite contains no test, `DistTrialRunner` takes a shortcut path without launching any process or starting the reactor.
Method	test_runWithoutTestButWithAnError	Even if there is no test, the suite can contain an error (most likely, an import error): this should make the run fail, and the error should be printed.
Method	test_runUnexpectedError	If for some reasons we can't connect to the worker process, the test suite catches and fails.
Method	test_runStopAfterTests	`DistTrialRunner` calls `reactor.stop` and unlocks the test directory once the tests have run.
Method	test_runWaitForProcessesDeferreds	`DistTrialRunner` waits for the worker processes to stop when the reactor is stopping, and then unlocks the test directory, not trying to stop the reactor again.
Method	test_runUntilFailure	`DistTrialRunner` can run in `untilFailure` mode where it will run the given tests until they fail.

Inherited from TestCase:

Instance Variable	timeout	A real number of seconds. If set, the test will raise an error if it takes longer than `timeout` seconds. If not set, util.DEFAULT_TIMEOUT_DURATION is used.
Method	__init__	Construct an asynchronous test case for `methodName`.
Method	assertFailure	Fail if `deferred` does not errback with one of `expectedFailures`. Returns the original Deferred with callbacks added. You will need to return this Deferred from your test case.
Method	__call__	Run the test. Should always do exactly the same thing as run().
Method	deferSetUp	Undocumented
Method	deferTestMethod	Undocumented
Method	deferTearDown	Undocumented
Method	deferRunCleanups	Run any scheduled cleanups and report errors (if any to the result object.
Method	addCleanup	Extend the base cleanup feature with support for cleanup functions which return Deferreds.
Method	getSuppress	Undocumented
Method	getTimeout	No summary
Method	_run	Run a single method, either a test method or fixture.
Method	_ebDeferSetUp	Undocumented
Method	_cbDeferTestMethod	Undocumented
Method	_ebDeferTestMethod	Undocumented
Method	_ebDeferTearDown	Undocumented
Method	_cbDeferRunCleanups	Undocumented
Method	_cleanUp	Undocumented
Method	_classCleanUp	Undocumented
Method	_makeReactorMethod	Create a method which wraps the reactor method `name`. The new method issues a deprecation warning and calls the original.
Method	_deprecateReactor	Deprecate `iterate`, `crash` and `stop` on `reactor`. That is, each method is wrapped in a function that issues a deprecation warning, then calls the original.
Method	_undeprecateReactor	Restore the deprecated reactor methods. Undoes what `_deprecateReactor` did.
Method	_runCleanups	Run the cleanups added with `addCleanup` in order.
Method	_runFixturesAndTest	Really run `setUp`, the test method, and `tearDown`. Any of these may return `defer.Deferred`s. After they complete, do some reactor cleanup.
Method	_wait	Take a Deferred that only ever callbacks. Block until it happens.

Inherited from SynchronousTestCase (via TestCase):

Instance Variable	failureException	An exception class, defaulting to `FailTest`. If the test method raises this exception, it will be reported as a failure, rather than an exception. All of the assertion methods raise this if the assertion fails.
Instance Variable	skip	`None` or a string explaining why this test is to be skipped. If defined, the test will not be run. Instead, it will be reported to the result object as 'skipped' (if the `TestResult` supports skipping).
Instance Variable	todo	`None`, a string or a tuple of `(errors, reason)` where `errors` is either an exception class or an iterable of exception classes, and `reason` is a string. See `Todo` or `makeTodo` for more information.
Instance Variable	suppress	`None` or a list of tuples of `(args, kwargs)` to be passed to `warnings.filterwarnings`. Use these to suppress warnings raised in a test. Useful for testing deprecated code. See also `util.suppress`.
Method	__eq__	No summary
Method	__ne__	Undocumented
Method	__hash__	Undocumented
Method	shortDescription	Undocumented
Method	getSkip	No summary
Method	getTodo	No summary
Method	runTest	If no `methodName` argument is passed to the constructor, `run` will treat this method as the thing with the actual test inside.
Method	run	Run the test case, storing the results in `result`.
Method	patch	Monkey patch an object for the duration of the test.
Method	flushLoggedErrors	Remove stored errors received from the log.
Method	flushWarnings	Remove stored warnings from the list of captured warnings and return them.
Method	callDeprecated	Call a function that should have been deprecated at a specific version and in favor of a specific alternative, and assert that it was thusly deprecated.
Method	mktemp	Create a new path name which can be used for a new file or directory.
Method	_getSuppress	No summary
Method	_getSkipReason	Return the reason to use for skipping a test method.
Method	_installObserver	Undocumented
Method	_removeObserver	Undocumented

Inherited from _Assertions (via TestCase, SynchronousTestCase):

Method	fail	Absolutely fail the test. Do not pass go, do not collect $200.
Method	assertFalse	Fail the test if `condition` evaluates to True.
Method	assertTrue	Fail the test if `condition` evaluates to False.
Method	assertRaises	Fail the test unless calling the function `f` with the given `args` and `kwargs` raises `exception`. The failure will report the traceback and call stack of the unexpected exception.
Method	assertEqual	Fail the test if `first` and `second` are not equal.
Method	assertIs	Fail the test if `first` is not `second`. This is an obect-identity-equality test, not an object equality (i.e. `__eq__`) test.
Method	assertIsNot	Fail the test if `first` is `second`. This is an obect-identity-equality test, not an object equality (i.e. `__eq__`) test.
Method	assertNotEqual	Fail the test if `first` == `second`.
Method	assertIn	Fail the test if `containee` is not found in `container`.
Method	assertNotIn	Fail the test if `containee` is found in `container`.
Method	assertNotAlmostEqual	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.
Method	assertAlmostEqual	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.
Method	assertApproximates	Fail if `first` - `second` > `tolerance`
Method	assertSubstring	Fail if `substring` does not exist within `astring`.
Method	assertNotSubstring	Fail if `astring` contains `substring`.
Method	assertWarns	Fail if the given function doesn't generate the specified warning when called. It calls the function, checks the warning, and forwards the result of the function if everything is fine.
Method	assertIsInstance	Fail if `instance` is not an instance of the given class or of one of the given classes.
Method	assertNotIsInstance	Fail if `instance` is an instance of the given class or of one of the given classes.
Method	successResultOf	Return the current success result of `deferred` or raise `self.failureException`.
Method	failureResultOf	Return the current failure result of `deferred` or raise `self.failureException`.
Method	assertNoResult	Assert that `deferred` does not have a result at this point.
Method	assertRegex	Fail the test if a `regexp` search of `text` fails.

def setUp(self):

Create a runner for testing.

def reap(self, workers):

Reap the workers and trap ConnectionDone failures on their endDeferreds.

Parameters workers The workers to reap. (type: An iterable of LocalWorker)

def getFakeSchedulerAndEternalCooperator(self):

Helper to create fake scheduler and cooperator in tests.

The cooperator has a termination timer which will never inform the scheduler that the task needs to be terminated.

Returns tuple of (scheduler, cooperator)

def test_writeResults(self):

DistTrialRunner.writeResults writes to the stream specified in the init.

def test_createLocalWorkers(self):

createLocalWorkers iterates the list of protocols and create one LocalWorker for each.

def test_launchWorkerProcesses(self):

Given a spawnProcess function, launchWorkerProcess launches a python process with an existing path as its argument.

def test_run(self):

run starts the reactor exactly once and spawns each of the workers exactly once.

def test_runUsedDirectory(self):

DistTrialRunner checks if the test directory is already locked, and if it is generates a name based on it.

def test_minimalWorker(self):

DistTrialRunner doesn't try to start more workers than the number of tests.

def test_runUncleanWarnings(self):

Running with the unclean-warnings option makes DistTrialRunner uses the UncleanWarningsReporterWrapper.

def test_runWithoutTest(self):

When the suite contains no test, DistTrialRunner takes a shortcut path without launching any process or starting the reactor.

def test_runWithoutTestButWithAnError(self):

Even if there is no test, the suite can contain an error (most likely, an import error): this should make the run fail, and the error should be printed.

def test_runUnexpectedError(self):

If for some reasons we can't connect to the worker process, the test suite catches and fails.

def test_runStopAfterTests(self):

DistTrialRunner calls reactor.stop and unlocks the test directory once the tests have run.

def test_runWaitForProcessesDeferreds(self):

DistTrialRunner waits for the worker processes to stop when the reactor is stopping, and then unlocks the test directory, not trying to stop the reactor again.

def test_runUntilFailure(self):

DistTrialRunner can run in untilFailure mode where it will run the given tests until they fail.

API Documentation for twisted, generated by pydoctor at 2020-03-25 17:34:30.

twisted.trial._dist.test.test_disttrial.DistTrialRunnerTests(TestCase) class documentation

`twisted.trial._dist.test.test_disttrial.DistTrialRunnerTests(TestCase)` class documentation