@Test
public void shouldDoNothingIfAlreadyRaised() {
// Preconditions
lifter.raise();
lifter.assertRaised();
command.step(0);
lifter.assertRaised();
}
@Test
public void shouldRaiseRampWhenDown() {
// Preconditions
lifter.lower();
lifter.assertLowered();
command.step(0);
lifter.assertRaised();
}