org.hamcrest.collection
Class IsArrayWithSize<E>

java.lang.Object
  org.hamcrest.BaseMatcher<T>
      org.hamcrest.TypeSafeDiagnosingMatcher<T>
          org.hamcrest.FeatureMatcher<E[],java.lang.Integer>
              org.hamcrest.collection.IsArrayWithSize<E>

All Implemented Interfaces:

Matcher<E[]>, SelfDescribing

public class IsArrayWithSize<E>
extends FeatureMatcher<E[],java.lang.Integer>

Matches if array size satisfies a nested matcher.

Constructor Summary

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

Method Summary

static <E> Matcher<E[]>	arrayWithSize(int size) Creates a matcher for arrays that matches when the length of the array equals the specified size.
static <E> Matcher<E[]>	arrayWithSize(Matcher<? super java.lang.Integer> sizeMatcher) Creates a matcher for arrays that matches when the length of the array satisfies the specified matcher.
static <E> Matcher<E[]>	emptyArray() Creates a matcher for arrays that matches when the length of the array is zero.
protected java.lang.Integer	featureValueOf(E[] actual) Implement this to extract the interesting feature.

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

IsArrayWithSize

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

Method Detail

featureValueOf

protected java.lang.Integer featureValueOf(E[] actual)

Description copied from class: FeatureMatcher

Implement this to extract the interesting feature.

Specified by:

featureValueOf in class FeatureMatcher<E[],java.lang.Integer>

Parameters:

actual - the target object

Returns:

the feature to be matched

arrayWithSize

public static <E> Matcher<E[]> arrayWithSize(Matcher<? super java.lang.Integer> sizeMatcher)

Creates a matcher for arrays that matches when the length of the array satisfies the specified matcher.

For example:

assertThat(new String[]{"foo", "bar"}, arrayWithSize(equalTo(2)))

Parameters:

sizeMatcher - a matcher for the length of an examined array

arrayWithSize

public static <E> Matcher<E[]> arrayWithSize(int size)

Creates a matcher for arrays that matches when the length of the array equals the specified size.

For example:

assertThat(new String[]{"foo", "bar"}, arrayWithSize(2))

Parameters:

size - the length that an examined array must have for a positive match

emptyArray

public static <E> Matcher<E[]> emptyArray()

Creates a matcher for arrays that matches when the length of the array is zero.

For example:

assertThat(new String[0], emptyArray())