我正在尝试使用org.hamcrest.Matchers.contains(java.util.List>) http://hamcrest.org/JavaHamcrest/javadoc/1.3/org/hamcrest/Matchers.html#contains(java.util.List),但编译器告诉我它无法解析该方法。
我什至尝试过 Hamcrest 给出的例子here http://hamcrest.org/JavaHamcrest/javadoc/1.3/org/hamcrest/Matchers.html#contains(java.util.List),但我得到相同的编译错误:
assertThat(Arrays.asList("foo", "bar"), contains(Arrays.asList(equalTo("foo"), equalTo("bar"))));
Error:(13, 9) java: no suitable method found for assertThat(java.util.List<java.lang.String>,org.hamcrest.Matcher<java.lang.Iterable<? extends java.util.List<org.hamcrest.Matcher<java.lang.String>>>>)
method org.hamcrest.MatcherAssert.<T>assertThat(T,org.hamcrest.Matcher<? super T>) is not applicable
(actual argument org.hamcrest.Matcher<java.lang.Iterable<? extends java.util.List<org.hamcrest.Matcher<java.lang.String>>>> cannot be converted to org.hamcrest.Matcher<? super java.util.List<java.lang.String>> by method invocation conversion)
method org.hamcrest.MatcherAssert.<T>assertThat(java.lang.String,T,org.hamcrest.Matcher<? super T>) is not applicable
(cannot instantiate from arguments because actual and formal argument lists differ in length)
method org.hamcrest.MatcherAssert.assertThat(java.lang.String,boolean) is not applicable
(actual argument java.util.List<java.lang.String> cannot be converted to java.lang.String by method invocation conversion)
我尝试将第二个参数转换为 Matcher超级列表>
assertThat(Arrays.asList("foo", "bar"), (Matcher<? super List<String>>)contains(Arrays.asList(equalTo("foo"), equalTo("bar"))));
但随后我收到另一个编译错误:
Error:(16, 88) java: inconvertible types
required: org.hamcrest.Matcher<? super java.util.List<java.lang.String>>
found: org.hamcrest.Matcher<java.lang.Iterable<? extends java.util.List<org.hamcrest.Matcher<java.lang.String>>>>
有没有办法正确使用这个方法?