org.hamcrest.collection
Class IsCollectionWithSize<E>

java.lang.Object
  org.hamcrest.BaseMatcher<T>
      org.hamcrest.TypeSafeDiagnosingMatcher<T>
          org.hamcrest.FeatureMatcher<java.util.Collection<? extends E>,java.lang.Integer>
              org.hamcrest.collection.IsCollectionWithSize<E>

All Implemented Interfaces:

Matcher<java.util.Collection<? extends E>>, SelfDescribing

public class IsCollectionWithSize<E>
extends FeatureMatcher<java.util.Collection<? extends E>,java.lang.Integer>

Matches if collection size satisfies a nested matcher.

Constructor Summary

IsCollectionWithSize(Matcher<? super java.lang.Integer> sizeMatcher)

Method Summary

protected java.lang.Integer	featureValueOf(java.util.Collection<? extends E> actual) Implement this to extract the interesting feature.
static <E> Matcher<java.util.Collection<? extends E>>	hasSize(int size) Creates a matcher for Collections that matches when the size() method returns a value equal to the specified size.
static <E> Matcher<java.util.Collection<? extends E>>	hasSize(Matcher<? super java.lang.Integer> sizeMatcher) Creates a matcher for Collections that matches when the size() method returns a value that satisfies the specified matcher.

Methods inherited from class org.hamcrest.FeatureMatcher

describeTo, matchesSafely

Methods inherited from class org.hamcrest.TypeSafeDiagnosingMatcher

describeMismatch, matches

Methods inherited from class org.hamcrest.BaseMatcher

_dont_implement_Matcher___instead_extend_BaseMatcher_, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

IsCollectionWithSize

public IsCollectionWithSize(Matcher<? super java.lang.Integer> sizeMatcher)

Method Detail

featureValueOf

protected java.lang.Integer featureValueOf(java.util.Collection<? extends E> actual)

Description copied from class: FeatureMatcher

Implement this to extract the interesting feature.

Specified by:

featureValueOf in class FeatureMatcher<java.util.Collection<? extends E>,java.lang.Integer>

Parameters:

actual - the target object

Returns:

the feature to be matched

hasSize

public static <E> Matcher<java.util.Collection<? extends E>> hasSize(Matcher<? super java.lang.Integer> sizeMatcher)

Creates a matcher for Collections that matches when the size() method returns a value that satisfies the specified matcher.

For example:

assertThat(Arrays.asList("foo", "bar"), hasSize(equalTo(2)))

Parameters:

sizeMatcher - a matcher for the size of an examined Collection

hasSize

public static <E> Matcher<java.util.Collection<? extends E>> hasSize(int size)

Creates a matcher for Collections that matches when the size() method returns a value equal to the specified size.

For example:

assertThat(Arrays.asList("foo", "bar"), hasSize(2))

Parameters:

size - the expected size of an examined Collection