def test_mac(self, monkeypatch, fake_keyevent_factory):
     """Test with a simulated mac."""
     monkeypatch.setattr(sys, 'platform', 'darwin')
     evt = fake_keyevent_factory(key=Qt.Key_A, modifiers=Qt.ControlModifier)
     assert utils.keyevent_to_string(evt) == 'Meta+A'

 def test_key_and_modifier(self, fake_keyevent_factory):
     """Test with key and modifier pressed."""
     evt = fake_keyevent_factory(key=Qt.Key_A, modifiers=Qt.ControlModifier)
     expected = 'Meta+A' if sys.platform == 'darwin' else 'Ctrl+A'
     assert utils.keyevent_to_string(evt) == expected

 def test_key_and_modifiers(self, fake_keyevent_factory):
     """Test with key and multiple modifiers pressed."""
     evt = fake_keyevent_factory(
         key=Qt.Key_A, modifiers=(Qt.ControlModifier | Qt.AltModifier |
                                  Qt.MetaModifier | Qt.ShiftModifier))
     assert utils.keyevent_to_string(evt) == 'Ctrl+Alt+Meta+Shift+A'

 def test_only_key(self, fake_keyevent_factory):
     """Test with a simple key pressed."""
     evt = fake_keyevent_factory(key=Qt.Key_A)
     assert utils.keyevent_to_string(evt) == 'A'

 def test_only_hyper_l(self, fake_keyevent_factory):
     """Test keyeevent when only Hyper_L is pressed."""
     evt = fake_keyevent_factory(key=Qt.Key_Hyper_L,
                                 modifiers=Qt.MetaModifier)
     assert utils.keyevent_to_string(evt) is None

 def test_only_control(self, fake_keyevent_factory):
     """Test keyeevent when only control is pressed."""
     evt = fake_keyevent_factory(key=Qt.Key_Control,
                                 modifiers=Qt.ControlModifier)
     assert utils.keyevent_to_string(evt) is None

 def test_mac(self, fake_keyevent_factory):
     """Test with a simulated mac."""
     evt = fake_keyevent_factory(key=Qt.Key_A, modifiers=Qt.ControlModifier)
     assert utils.keyevent_to_string(evt) == 'meta+a'

 def test_key_and_modifier(self, fake_keyevent_factory):
     """Test with key and modifier pressed."""
     evt = fake_keyevent_factory(key=Qt.Key_A, modifiers=Qt.ControlModifier)
     expected = 'meta+a' if utils.is_mac else 'ctrl+a'
     assert utils.keyevent_to_string(evt) == expected