如何使用Hamcrest声明一个通用的整数列表？

Question

我试图匹配Hamcrest的整数列表,在线查看一些示例,但我得到运行时异常.

有人可以告诉我什么是正确的语法？

List<Integer> numbers = Arrays.asList( 1, 2, 3, 4, 5 );
assertThat((List<Object>) numbers, hasItem(hasProperty("value", is(1))));
assertThat((List<Object>) numbers, hasItem(hasProperty("value", is(2))));
assertThat((List<Object>) numbers, hasItem(hasProperty("value", is(3))));
assertThat((List<Object>) numbers, hasItem(hasProperty("value", is(4))));
assertThat((List<Object>) numbers, hasItem(hasProperty("value", is(5))));

谢谢

Answer 1

如果列表项的顺序无关紧要:

assertThat(numbers, hasItems(1, 2, 3, 4, 5));

如果是这样的话:

assertThat(numbers, is(equalTo(Arrays.asList(1, 2, 3, 4, 5))));

如果集合不应包含其他元素,那么还要检查大小:

assertThat(numbers, hasSize(5));