@Test
public void testDriverChange() {
when(view.getDriver()).thenReturn(DRIVER_UUID);
// emulates the presenter method executed from the UI.
mainPanel.onDriverChange();
verify(view, times(1)).getDriver();
// the handler should have been invoked and collected the expected value.
assertEquals(DRIVER_UUID, driver);
}
@Test
public void testGetDriver() {
when(view.getDriver()).thenReturn(DRIVER_UUID);
assertEquals(DRIVER_UUID, mainPanel.getDriver());
}