Class MapContentMatchers<T,​V>

org.hamcrest.TypeSafeMatcher<Map<? super T,​? super V>>
All Implemented Interfaces:
org.hamcrest.Matcher<Map<? super T,​? super V>>, org.hamcrest.SelfDescribing

public final class MapContentMatchers<T,​V>
extends org.hamcrest.TypeSafeMatcher<Map<? super T,​? super V>>
Matchers that examine the contents of a Map.

It is possible to match a single entry by value or matcher like this:

 assertThat(map, hasEntry(SOME_KEY, is(SOME_VALUE)));
 assertThat(map, hasEntry(SOME_KEY, is(String.class)));
 assertThat(map, hasEntry(SOME_KEY, notNullValue()));

It's also possible to match multiple entries in a map:

 Map<String, Object> expectedInMap = new HashMap<String, Object>();
 expectedInMap.put(SOME_KEY, SOME_VALUE);
 expectedInMap.put(OTHER_KEY, is(OTHER_VALUE));
 assertThat(map, hasAllEntries(expectedInMap));

If you only need to verify the existence of a key:

 assertThat(map, hasKey(SOME_KEY));
Alex Peters, Iwein Fuld, Gunnar Hillert, Artem Bilan, Gary Russell
  • Method Summary

    Modifier and Type Method Description
    void describeTo​(org.hamcrest.Description description)  
    static <T,​ V> org.hamcrest.Matcher<Map<T,​V>> hasAllEntries​(Map<T,​V> entries)  
    boolean matchesSafely​(Map<? super T,​? super V> item)  

    Methods inherited from class org.hamcrest.TypeSafeMatcher

    describeMismatch, describeMismatchSafely, matches

    Methods inherited from class org.hamcrest.BaseMatcher

    _dont_implement_Matcher___instead_extend_BaseMatcher_, isNotNull, toString

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
  • Method Details

    • matchesSafely

      public boolean matchesSafely​(Map<? super T,​? super V> item)
      Specified by:
      matchesSafely in class org.hamcrest.TypeSafeMatcher<Map<? super T,​? super V>>
    • describeTo

      public void describeTo​(org.hamcrest.Description description)
    • hasAllEntries

      public static <T,​ V> org.hamcrest.Matcher<Map<T,​V>> hasAllEntries​(Map<T,​V> entries)