@Test
public void testPasswordChange() {
when(view.getPassword()).thenReturn(PASSWORD);
// emulates the presenter method executed from the UI.
mainPanel.onPasswordChange();
verify(view, times(1)).getPassword();
// the handler should have been invoked and collected the expected value.
assertEquals(PASSWORD, password);
}
@Test
public void testGetPassword() {
when(view.getPassword()).thenReturn(PASSWORD);
assertEquals(PASSWORD, mainPanel.getPassword());
}