org.hamcrest.collection
Class IsCollectionWithSize<E>

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