@Test
public void shouldAddWaitOption()
{

    HelmRollback command = Helm.rollback("foo-release", "1.0");
    HelmRollback copy    = command.waitForK8s();
    assertThat(copy, is(not(sameInstance(command))));
    assertCommand(copy, "rollback", "--wait", "foo-release", "1.0");
}