waitSignalsnow provide much more detailed messages when expected signals are not emitted. Many thanks to @MShekow for the PR (#153).
qtbotfixture now can capture Qt virtual method exceptions in a block using
captureExceptions(#154). Thanks to @fogo for the PR.
- New qtbot.waitActive and qtbot.waitExposed methods for PyQt5. Thanks @The-Compiler for the request (#158).
SignalTimeoutErrorhas been renamed to
SignalTimeoutErroris kept as a backward compatibility alias.
pytest-qt 2.0, we changed some defaults to values we think are much
better, however this required some backwards-incompatible changes:
pytest-qtnow defaults to using
PYTEST_QT_APIis not set. Before, it preferred
PySidewhich is using the discontinued Qt4.
- Python 3 versions prior to 3.4 are no longer supported.
@pytest.mark.qt_log_ignoremark now defaults to
extend=True, i.e. extends the patterns defined in the config file rather than overriding them. You can pass
extend=Falseto get the old behaviour of overriding the patterns.
qtbot.waitSignalnow defaults to
raising=Trueand raises an exception on timeouts. You can set
qt_wait_signal_raising = falsein your config to get back the old behaviour.
PYTEST_QT_FORCE_PYQTenvironment variable is no longer supported. Set
PYTEST_QT_APIto the appropriate value instead or the new
qt_apiconfiguration option in your
- From this version onward,
pytest-qtis licensed under the MIT license (#134).
qtmodeltesterfixture to test
QAbstractItemModelsubclasses. Thanks @The-Compiler for the initiative and port of the original C++ code for ModelTester (#63).
qtbot.waitUntilmethod, which continuously calls a callback until a condition is met or a timeout is reached. Useful for testing asynchronous features (like in X window environments for example).
waitSignalscan receive an optional callback (or list of callbacks) that can evaluate if the arguments of emitted signals should resume execution or not. Additionally
waitSignalshas a new
orderparameter that allows to expect signals and their arguments in a strict, semi-strict or no specific order. Thanks @MShekow for the PR (#141).
- Now which Qt binding
pytest-qtwill use can be configured by the
qt_apiconfig option. Thanks @The-Compiler for the request (#129).
pytestqt.qt_compatis an internal module and shouldn’t be imported directly, it is known that some test suites did import it. This module now uses a lazy-load mechanism to load Qt classes and objects, so the old symbols (
QApplication, etc.) are no longer available from it.
The default value for
raising is planned to change to
True starting in
1.12. Users wishing to preserve
the current behavior (
False by default) should make
use of the new
qt_wait_signal_raising ini option below.
qt_wait_signal_raisingini option can be used to override the default value of the
raisingparameter of the
qtbot.waitSignalsfunctions when omitted:
[pytest] qt_wait_signal_raising = true
- Exception capturing now happens as early/late as possible in order to catch all possible exceptions (including fixtures)(105). Thanks @The-Compiler for the request.
- Widgets registered by
qtbot.addWidgetare now closed before all other fixtures are tear down (106). Thanks @The-Compiler for request.
qtbotnow has a new
waitmethod which does a blocking wait while the event loop continues to run, similar to
QTest::qWait. Thanks @The-Compiler for the PR (closes 107)!
ImportErrorwhen failing to import any Qt binding: raising the latter causes pluggy in pytest-2.8 to generate a subtle warning instead of a full blown error. Thanks @Sheeo for bringing this problem to attention (closes 109).
pytest.mark.qt_log_ignorenow supports an
extendparameter that will extend the list of regexes used to ignore Qt messages (defaults to False). Thanks @The-Compiler for the PR (99).
- Fixed internal error when interacting with other plugins that raise an error, hiding the original exception (98). Thanks @The-Compiler for the PR!
pytest-qtis properly tested with PyQt5 on Travis-CI. Many thanks to @The-Compiler for the PR!
- Reduced verbosity when exceptions are captured in virtual methods (77, thanks @The-Compiler).
pytestqt.pluginhas been split in several files (74) and tests have been moved out of the
pytestqtpackage. This should not affect users, but it is worth mentioning nonetheless.
QApplication.processEvents()is now called before and after other fixtures and teardown hooks, to better try to avoid non-processed events from leaking from one test to the next. (67, thanks @The-Compiler).
- Show Qt/PyQt/PySide versions in pytest header (68, thanks @The-Compiler!).
- Disconnect SignalBlocker functions after its loop exits to ensure second emissions that call the internal functions on the now-garbage-collected SignalBlocker instance (#69, thanks @The-Compiler for the PR).
- Exceptions are now captured also during test tear down, as delayed events will
get processed then and might raise exceptions in virtual methods;
this is specially problematic in
PyQt5.5, which changed the behavior to call
abortby default, which will crash the interpreter. (65, thanks @The-Compiler).
- Fixed log line number in messages, and provide better contextual information in Qt5 (55, thanks @The-Compiler);
- Fixed issue where exceptions inside a
waitSignalwith-statement block would be swallowed and a
SignalTimeoutErrorwould be raised instead. (59, thanks @The-Compiler for bringing up the issue and providing a test case);
- Fixed issue where the first usage of
qappfixture would return
None. Thanks to @gqmelo for noticing and providing a PR;
qtlognow sports a context manager method,
disabled(58). Thanks @The-Compiler for the idea and testing;
- Messages sent by
qCriticalare captured and displayed when tests fail, similar to pytest-catchlog. Also, tests can be configured to automatically fail if an unexpected message is generated.
- New method
waitSignals: will block untill all signals given are triggered (thanks @The-Compiler for idea and complete PR).
- New parameter
Truewill raise a
qtbot.SignalTimeoutErrorexception when timeout is reached (defaults to
False). (thanks again to @The-Compiler for idea and complete PR).
pytestversion >= 2.7.
Internal changes to improve memory management¶
QApplication.exit()is no longer called at the end of the test session and the
QApplicationinstance is not garbage collected anymore;
QtBotno longer receives a QApplication as a parameter in the constructor, always referencing
QApplication.instance()now; this avoids keeping an extra reference in the
deleteLateris called on widgets added in
QtBot.addWidgetat the end of each test;
QApplication.processEvents()is called at the end of each test to make sure widgets are cleaned up;
- Now the module
``qt_compat``no longer sets
2for PyQt, making it compatible for those still using version
1of the API.
- Now it is possible to disable automatic exception capture by using markers or
pytest.inioption. Consult the documentation for more information. (26, thanks @datalyze-solutions for bringing this up).
QApplicationinstance is created only if it wasn’t created yet (21, thanks @fabioz!)
addWidgetnow keeps a weak reference its widgets (20, thanks @fabioz)
This version include the new
waitSignal function, which makes it easy
to write tests for long running computations that happen in other threads
def test_long_computation(qtbot): app = Application() # Watch for the app.worker.finished signal, then start the worker. with qtbot.waitSignal(app.worker.finished, timeout=10000) as blocker: blocker.connect(app.worker.failed) # Can add other signals to blocker app.worker.start() # Test will wait here until either signal is emitted, or 10 seconds has elapsed assert blocker.signal_triggered # Assuming the work took less than 10 seconds assert_application_results(app)
Now exceptions raised in virtual methods make tests fail, instead of silently passing (11). If an exception is raised, the test will fail and it exceptions that happened inside virtual calls will be printed as such:
E Failed: Qt exceptions in virtual methods: E ________________________________________________________________________________ E File "x:\pytest-qt\pytestqt\_tests\test_exceptions.py", line 14, in event E raise ValueError('mistakes were made') E E ValueError: mistakes were made E ________________________________________________________________________________ E File "x:\pytest-qt\pytestqt\_tests\test_exceptions.py", line 14, in event E raise ValueError('mistakes were made') E E ValueError: mistakes were made E ________________________________________________________________________________
Thanks to @jdreaver for request and sample code!
Fixed documentation for
QtBot: it was not being rendered in the docs due to an import error.
Python 3 support.
Minor documentation fixes.
Small bug fix release.
First working version.