@Test
public void testSetOpenMon() throws Exception {

    OpenMon nullMon = new NullImp();
    automonAspectBase.setOpenMon(nullMon);
    assertThat(automonAspectBase.isEnabled()).isFalse();
    assertThat(automonAspectBase.getOpenMon()).isEqualTo(nullMon);
    automonAspectBase.setOpenMon(openMon);
    assertThat(automonAspectBase.isEnabled()).isTrue();
    assertThat(automonAspectBase.getOpenMon()).isEqualTo(openMon);
}