@Test
public void testViewCardinalities() {
// SwitcherView should appear differently depending on number of views available
// Multiple views -> Combo box
// One view -> Label
// No views -> Neither
// Create the test object
View switcherView = SwitcherView.VIEW_INFO.createView(mockComponent);
// During normal initialization, should have two view infos.
// A Combo Box should be found.
Assert.assertNotNull(findComponent(switcherView, JComboBox.class));
// With only one view info, should have a label instead
Mockito.when(mockComponent.getViewInfos(ViewType.OBJECT))
.thenReturn(Collections.singleton(mockViewInfo1));
switcherView = SwitcherView.VIEW_INFO.createView(mockComponent);
Assert.assertNull(findComponent(switcherView, JComboBox.class));
Assert.assertNotNull(findComponent(switcherView, JLabel.class));
// With no views, there should be no label or combo box
Mockito.when(mockComponent.getViewInfos(ViewType.OBJECT))
.thenReturn(Collections.<ViewInfo>emptySet());
switcherView = SwitcherView.VIEW_INFO.createView(mockComponent);
Assert.assertNull(findComponent(switcherView, JComboBox.class));
Assert.assertNull(findComponent(switcherView, JLabel.class));
}
@Test(dataProvider = "generateSwitcherTests")
public void testSwitcher(boolean addGUI, boolean doChange, boolean acceptChange) {
// Create the test object
View switcherView = SwitcherView.VIEW_INFO.createView(mockComponent);
// Act as though the view provider has/hasn't accepted the view switch
Mockito.when(mockViewProvider.setHousedViewManifestation(mockViewInfo2))
.thenReturn(acceptChange);
// Attach view provider to gui, if this test iteration says we should
if (addGUI) {
switcherView.addMonitoredGUI(mockViewProvider);
}
// Find combo box so we can change selection
@SuppressWarnings("rawtypes")
JComboBox comboBox = findComponent(switcherView, JComboBox.class);
Assert.assertNotNull(comboBox);
// Change the item - again, only if we're supposed to
if (doChange) {
comboBox.setSelectedItem(mockViewInfo2);
}
// Verify that the change was reported to the GUI,
// if a GUI was attached and the change was done
Mockito.verify(mockViewProvider, Mockito.times(addGUI && doChange ? 1 : 0))
.setHousedViewManifestation(mockViewInfo2);
// Verify that combo box state has/hasn't reset, as apparopriate
// Specifically, only should if change was done, and an attached GUI didn't reject it
boolean shouldChange = doChange && !(addGUI && !acceptChange);
Assert.assertEquals(comboBox.getSelectedItem(), shouldChange ? mockViewInfo2 : mockViewInfo1);
}
@Test
public void testAppearance() {
// Exercise custom ComboBoxUI
// Mostly visual, so not much to verify
// Create the test object
View switcherView = SwitcherView.VIEW_INFO.createView(mockComponent);
// Find combo box so we can test its UI object
@SuppressWarnings("rawtypes")
JComboBox comboBox = findComponent(switcherView, JComboBox.class);
ComboBoxUI ui = comboBox.getUI();
// Verify that ui paints a rounded rect (per spec)
Graphics mockGraphics = Mockito.mock(Graphics.class, Mockito.RETURNS_MOCKS);
ui.paint(mockGraphics, comboBox);
Mockito.verify(mockGraphics)
.fillRoundRect(
Mockito.anyInt(),
Mockito.anyInt(),
Mockito.anyInt(),
Mockito.anyInt(),
Mockito.anyInt(),
Mockito.anyInt());
}
@Test
public void testBadInput() {
// Make sure that view does not break for unexpected input
// (verify that null checks are present.)
// Create the test object
View switcherView = SwitcherView.VIEW_INFO.createView(mockComponent);
// Add monitored GUI can take a variety of object types
// Make sure an unexpected object type does not trigger an exception
switcherView.addMonitoredGUI(null);
switcherView.addMonitoredGUI("hello");
Mockito.when(mockViewProvider.getHousedViewManifestation()).thenReturn(null);
switcherView.addMonitoredGUI(mockViewProvider);
}