如何更改是否在测试中声明

Question

此测试验证了运输机从军机列表中接收的方法的正确性。如在测试中一样，请勿使用“ for”和“ if”，而应使用assertTrue。也不能使用FLAG和lambda。在所有这些旁边应该是一个断言。

@Test
public void testGetTransportMilitaryPlanes() {
    Airport airport = new Airport(planes);
    List<MilitaryPlane> transportMilitaryPlanes = airport.getTransportMilitaryPlanes();

    boolean flag = false;
    for (MilitaryPlane militaryPlane : transportMilitaryPlanes) {
        if ((militaryPlane.getMilitaryType() == MilitaryType.TRANSPORT)) {
            flag = true;
            break;
        }
    }
    Assert.assertEquals(flag, true);
}

我这样做了：

@Test
public void testGetTransportMilitaryPlanes() {
    Airport airport = new Airport(planes);
    List<MilitaryPlane> transportMilitaryPlanes = airport.getTransportMilitaryPlanes();

    MilitaryPlane militaryPlane = (MilitaryPlane) transportMilitaryPlanes;
    Assert.assertTrue(militaryPlane.getMilitaryType() == MilitaryType.TRANSPORT);

}

但是测试失败了。并且在原始版本中是真的。

Answer 1

使用流将使它更加优雅：

Assert.assertTrue
    (transportMilitaryPlanes.stream()
                            .anyMatch(p -> p.getMilitaryType() == MilitaryType.TRANSPORT));