def test_exception_handler_interactive(qtbot, caplog):
"""Test exception handler logs to console and emits a signal."""
handler = ExceptionHandler(gui_exceptions=False)
with qtbot.waitSignal(handler.error, timeout=1000):
with caplog.at_level(logging.ERROR):
handler.handle(ValueError, ValueError("whoops"), None)
assert len(caplog.records) == 1
record = caplog.records[0]
assert record.levelname == 'ERROR'
assert 'Unhandled exception' in record.message
assert 'ValueError: whoops' in record.message
def test_exception_handler_gui(qtbot, make_napari_viewer):
"""Test exception handler can create a NapariNotification"""
viewer = make_napari_viewer()
handler = ExceptionHandler(gui_exceptions=True)
with qtbot.waitSignal(handler.error, timeout=1000):
handler.handle(ValueError, ValueError("whoops"), None)
assert handler.message in viewer.window.qt_viewer.canvas.native.children()
handler.message.toggle_expansion()
assert handler.message.property('expanded') is True
handler.message.toggle_expansion()
assert handler.message.property('expanded') is False
handler.message.close()
def test_keyboard_interupt_handler(qtbot, capsys):
handler = ExceptionHandler()
with pytest.raises(SystemExit):
handler.handle(KeyboardInterrupt, KeyboardInterrupt(), None)
assert capsys.readouterr().err == "Closed by KeyboardInterrupt\n"