+ private static class PostIdMatcher extends TypeSafeDiagnosingMatcher<Post> {
+
+ private final String id;
+
+ private PostIdMatcher(String id) {
+ this.id = id;
+ }
+
+ @Override
+ protected boolean matchesSafely(Post item,
+ Description mismatchDescription) {
+ if (!item.getId().equals(id)) {
+ mismatchDescription.appendText("post has ID ").appendValue(item.getId());
+ return false;
+ }
+ return true;
+ }
+
+ @Override
+ public void describeTo(Description description) {
+ description.appendText("post with ID ").appendValue(id);
+ }
+
+ }
+