如何将 Hamcrest 匹配器应用于被测类的属性？

有没有办法构建一个组合的 Hamcrest 匹配器来测试对象和该对象的属性？ - 伪代码：

both(
  instanceof(MultipleFailureException.class)
).and(
  // pseudo code starts
  adapt(
    new Adapter<MultipleFailureException, Iterable<Throwable>()
    {
      public Iterable<Throwable> getAdapter(MultipleFailureException item)
      {
        return item.getFailures();
      }
    }, 
    // pseudo code ends
    everyItem(instanceOf(IllegalArgumentException.class))
  )
)

背景：我有一个 JUnit 测试，它迭代动态对象的集合。每个对象在处理时都应该抛出异常。收集异常情况。测试预计以 MultipleFailureException 结束，其中包含这些抛出的异常的集合：

protected final ExpectedException expectation = ExpectedException.none();
protected final ErrorCollector collector = new ErrorCollector();

@Rule
public RuleChain exceptionRules = RuleChain.outerRule(expectation).around(collector);

@Test
public void testIllegalEnumConstant()
{
  expectation.expect(/* pseudo code from above */);
  for (Object object : ILLEGAL_OBJECTS)
  {
    try
    {
      object.processWithThrow();
    }
    catch (Throwable T)
    {
      collector.addError(T);
    }
  }
}

我想你可能正在寻找有属性 http://hamcrest.org/JavaHamcrest/javadoc/1.3/org/hamcrest/beans/HasProperty.html or 有属性和值 http://hamcrest.org/JavaHamcrest/javadoc/1.3/org/hamcrest/beans/HasPropertyWithValue.html

请参阅此处的示例：https://theholyjava.wordpress.com/2011/10/15/hasproperty-the-hidden-gem-of-hamcrest-and-assertthat/ https://theholyjava.wordpress.com/2011/10/15/hasproperty-the-hidden-gem-of-hamcrest-and-assertthat/

我以前处理过的另一个例子；在这里我们检查是否有Quote method getModels()返回一个集合PhoneModel并且集合中的其中一项具有属性makeId等于 LG_ID 且modelId等于 NEXUS_4_ID。

            assertThat(quote.getModels(),
                            hasItem(Matchers.<PhoneModel> hasProperty("makeId",
                                            equalTo(LG_ID))));
            assertThat(quote.getModels(),
                            hasItem(Matchers.<PhoneModel> hasProperty("modelId",
                                            equalTo(NEXUS_4_ID))));
    }

为此，hamcrest 依赖于您采用JavaBean http://docstore.mik.ua/orelly/java-ent/jnut/ch06_02.htm%20JavaBean惯例。