1package org.junit.internal.matchers;
2
3import static org.hamcrest.core.AllOf.allOf;
4import static org.hamcrest.core.IsEqual.equalTo;
5
6import java.util.ArrayList;
7import java.util.Collection;
8
9import org.hamcrest.Description;
10import org.hamcrest.Factory;
11import org.hamcrest.Matcher;
12
13// Copied (hopefully temporarily) from hamcrest-library
14public class IsCollectionContaining<T> extends TypeSafeMatcher<Iterable<T>> {
15    private final Matcher<? extends T> elementMatcher;
16
17    public IsCollectionContaining(Matcher<? extends T> elementMatcher) {
18        this.elementMatcher = elementMatcher;
19    }
20
21    @Override
22	public boolean matchesSafely(Iterable<T> collection) {
23        for (T item : collection) {
24            if (elementMatcher.matches(item)){
25                return true;
26            }
27        }
28        return false;
29    }
30
31    public void describeTo(Description description) {
32        description
33        	.appendText("a collection containing ")
34        	.appendDescriptionOf(elementMatcher);
35    }
36
37    @Factory
38    public static <T> Matcher<Iterable<T>> hasItem(Matcher<? extends T> elementMatcher) {
39        return new IsCollectionContaining<T>(elementMatcher);
40    }
41
42    @Factory
43    public static <T> Matcher<Iterable<T>> hasItem(T element) {
44        return hasItem(equalTo(element));
45    }
46
47    @Factory
48    public static <T> Matcher<Iterable<T>> hasItems(Matcher<? extends T>... elementMatchers) {
49        Collection<Matcher<? extends Iterable<T>>> all
50                = new ArrayList<Matcher<? extends Iterable<T>>>(elementMatchers.length);
51        for (Matcher<? extends T> elementMatcher : elementMatchers) {
52            all.add(hasItem(elementMatcher));
53        }
54        return allOf(all);
55    }
56
57    @Factory
58    public static <T> Matcher<Iterable<T>> hasItems(T... elements) {
59        Collection<Matcher<? extends Iterable<T>>> all
60                = new ArrayList<Matcher<? extends Iterable<T>>>(elements.length);
61        for (T element : elements) {
62            all.add(hasItem(element));
63        }
64        return allOf(all);
65    }
66
67}
68