def qapp():
"""
fixture that instantiates the QApplication instance that will be used by
the tests.
"""
app = QApplication.instance()
if app is None:
global _qapp_instance
_qapp_instance = QApplication([])
yield _qapp_instance
else:
yield app # pragma: no cover
def _process_events():
"""Calls app.processEvents() while taking care of capturing exceptions
or not based on the given item's configuration.
"""
app = QApplication.instance()
if app is not None:
app.processEvents()
def _process_events():
"""Calls app.processEvents() while taking care of capturing exceptions
or not based on the given item's configuration.
"""
app = QApplication.instance()
if app is not None:
app.processEvents()
def pytest_runtest_teardown():
"""
Hook called after each test tear down, to process any pending events and
avoiding leaking events to the next test.
"""
yield
app = QApplication.instance()
if app is not None:
app.processEvents()
def test_catch_exceptions_in_virtual_methods(qtbot, raise_error):
"""
Catch exceptions that happen inside Qt virtual methods and make the
tests fail if any.
"""
v = Receiver(raise_error)
app = QApplication.instance()
app.sendEvent(v, QtCore.QEvent(QtCore.QEvent.User))
app.sendEvent(v, QtCore.QEvent(QtCore.QEvent.User))
app.processEvents()
def qapp():
"""
fixture that instantiates the QApplication instance that will be used by
the tests.
"""
app = QApplication.instance()
if app is None:
global _qapp_instance
_qapp_instance = QApplication([])
yield app
else:
yield app # pragma: no cover
def stopForInteraction(self):
"""
Stops the current test flow, letting the user interact with any visible widget.
This is mainly useful so that you can verify the current state of the program while writing
tests.
Closing the windows should resume the test run, with ``qtbot`` attempting to restore visibility
of the widgets as they were before this call.
.. note:: As a convenience, it is also aliased as `stop`.
"""
widget_and_visibility = []
for weak_widget in self._widgets:
widget = weak_widget()
if widget is not None:
widget_and_visibility.append((widget, widget.isVisible()))
QApplication.instance().exec_()
for widget, visible in widget_and_visibility:
widget.setVisible(visible)
def test_basics(qtbot):
"""
Basic test that works more like a sanity check to ensure we are setting up a QApplication
properly and are able to display a simple event_recorder.
"""
assert QApplication.instance() is not None
widget = QWidget()
qtbot.addWidget(widget)
widget.setWindowTitle('W1')
widget.show()
assert widget.isVisible()
assert widget.windowTitle() == 'W1'
def qapp():
"""
fixture that instantiates the QApplication instance that will be used by
the tests.
"""
from pytestqt.qt_compat import QApplication
app = QApplication.instance()
if app is None:
global _qapp_instance
_qapp_instance = QApplication([])
yield _qapp_instance
else:
yield app # pragma: no cover
def stopForInteraction(self):
"""
Stops the current test flow, letting the user interact with any visible widget.
This is mainly useful so that you can verify the current state of the program while writing
tests.
Closing the windows should resume the test run, with ``qtbot`` attempting to restore visibility
of the widgets as they were before this call.
.. note:: As a convenience, it is also aliased as `stop`.
"""
widget_and_visibility = []
for weak_widget in _iter_widgets(self._request.node):
widget = weak_widget()
if widget is not None:
widget_and_visibility.append((widget, widget.isVisible()))
QApplication.instance().exec_()
for widget, visible in widget_and_visibility:
widget.setVisible(visible)
def _process_events(item):
"""Calls app.processEvents() while taking care of capturing exceptions
or not based on the given item's configuration.
"""
app = QApplication.instance()
if app is not None:
if _is_exception_capture_disabled(item):
app.processEvents()
else:
with capture_exceptions() as exceptions:
app.processEvents()
if exceptions:
pytest.fail("TEARDOWN ERROR: " + format_captured_exceptions(exceptions), pytrace=False)
def _process_events(item):
"""Calls app.processEvents() while taking care of capturing exceptions
or not based on the given item's configuration.
"""
app = QApplication.instance()
if app is not None:
if _exception_capture_disabled(item):
app.processEvents()
else:
with capture_exceptions() as exceptions:
app.processEvents()
if exceptions:
pytest.fail('TEARDOWN ERROR: ' +
format_captured_exceptions(exceptions),
pytrace=False)
def wait(self):
"""
Waits until either a connected signal is triggered or timeout is reached.
:raise ValueError: if no signals are connected and timeout is None; in
this case it would wait forever.
"""
try:
if self.signal_triggered:
return
if self.timeout is None and not self._signals:
raise ValueError("No signals or timeout specified.")
timer = QtCore.QElapsedTimer()
if self.timeout:
timer.start()
while not self.signal_triggered:
QApplication.instance().processEvents()
if self.timeout and timer.hasExpired(self.timeout):
break
if not self.signal_triggered and self.raising:
raise SignalTimeoutError("Didn't get signal after %sms." %
self.timeout)
finally:
self._cleanup()
def wait(self):
"""
Waits until either a connected signal is triggered or timeout is reached.
:raise ValueError: if no signals are connected and timeout is None; in
this case it would wait forever.
"""
try:
if self.signal_triggered:
return
if self.timeout is None and not self._signals:
raise ValueError("No signals or timeout specified.")
timer = QtCore.QElapsedTimer()
if self.timeout:
timer.start()
while not self.signal_triggered:
QApplication.instance().processEvents()
if self.timeout and timer.hasExpired(self.timeout):
break
if not self.signal_triggered and self.raising:
raise SignalTimeoutError("Didn't get signal after %sms." %
self.timeout)
finally:
self._cleanup()
def qapp():
"""
fixture that instantiates the QApplication instance that will be used by
the tests.
"""
app = QApplication.instance()
if app is None:
app = QApplication([])
yield app
app.exit()
app.deleteLater()
else:
yield app # pragma: no cover