Package org.hamcrest.collection

Class 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 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())