它们是我的方法,我正在测试它们:当我不将null作为参数时,它很好,但是当我将参数设为null时,我无法测试?我无法理解它的逻辑。
这就是我的转换器方法:
@Override
public Integer convertToDatabaseColumn(WorkerId id) {
if (Assert.isNull(id)) {
return null;
}
return id.getValue();
}
@Override
public WorkerId convertToEntityAttribute(Integer s) {
if (Assert.isNull(s)) {
return null;
}
return new WorkerId(s);
}
那就是我的测试方法:
@Test
public void testConvertToDatabaseColumn() {
WorkerId workerId = new WorkerId(1);
Integer result = workerIdConverter.convertToDatabaseColumn(workerId);
assertThat(result).isEqualTo(workerId.getValue());
}
@Test
public void testIfIdNull() {
WorkerId workerId = null;
Integer result = workerIdConverter.convertToDatabaseColumn(workerId);
assertThat(result).isEqualTo(workerIdConverter.convertToDatabaseColumn(null));
}
答案 0 :(得分:1)
您不需要也不应该调用两次测试方法 这就够了:
@Test
public void testIfIdNull() {
WorkerId workerId = null;
Integer result = workerIdConverter.convertToDatabaseColumn(workerId);
assertThat(result).isEqualTo(null);
}
或者更简单地没有匹配器(这在这里没有帮助):
@Test
public void testIfIdNull() {
WorkerId workerId = null;
Integer result = workerIdConverter.convertToDatabaseColumn(workerId);
Assert.assertNull(result);
}
由于断言和测试方法简洁,你甚至可以在一行中写下所有内容而不降低可读性:
@Test
public void testIfIdNull() {
Assert.assertNull(workerIdConverter.convertToDatabaseColumn(null));
}