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package org.junit.matchers;
import org.hamcrest.Matcher;
import org.junit.internal.matchers.CombinableMatcher;
import org.junit.internal.matchers.Each;
import org.junit.internal.matchers.IsCollectionContaining;
import org.junit.internal.matchers.StringContains;
/**
* Convenience import class: these are useful matchers for use with the assertThat method, but they are
* not currently included in the basic CoreMatchers class from hamcrest.
*/
public class JUnitMatchers {
/**
* @param element
* @return A matcher matching any collection containing element
*/
public static <T> org.hamcrest.Matcher<java.lang.Iterable<T>> hasItem(T element) {
return IsCollectionContaining.hasItem(element);
}
/**
* @param elementMatcher
* @return A matcher matching any collection containing an element matching elementMatcher
*/
public static <T> org.hamcrest.Matcher<java.lang.Iterable<T>> hasItem(org.hamcrest.Matcher<? extends T> elementMatcher) {
return IsCollectionContaining.hasItem(elementMatcher);
}
/**
* @param elements
* @return A matcher matching any collection containing every element in elements
*/
public static <T> org.hamcrest.Matcher<java.lang.Iterable<T>> hasItems(T... elements) {
return IsCollectionContaining.hasItems(elements);
}
/**
* @param elementMatchers
* @return A matcher matching any collection containing at least one element that matches
* each matcher in elementMatcher (this may be one element matching all matchers,
* or different elements matching each matcher)
*/
public static <T> org.hamcrest.Matcher<java.lang.Iterable<T>> hasItems(org.hamcrest.Matcher<? extends T>... elementMatchers) {
return IsCollectionContaining.hasItems(elementMatchers);
}
/**
* @param elementMatcher
* @return A matcher matching any collection in which every element matches elementMatcher
*/
public static <T> Matcher<Iterable<T>> everyItem(final Matcher<T> elementMatcher) {
return Each.each(elementMatcher);
}
/**
* @param substring
* @return a matcher matching any string that contains substring
*/
public static org.hamcrest.Matcher<java.lang.String> containsString(java.lang.String substring) {
return StringContains.containsString(substring);
}
/**
* This is useful for fluently combining matchers that must both pass. For example:
* <pre>
* assertThat(string, both(containsString("a")).and(containsString("b")));
* </pre>
*/
public static <T> CombinableMatcher<T> both(Matcher<T> matcher) {
return new CombinableMatcher<T>(matcher);
}
/**
* This is useful for fluently combining matchers where either may pass, for example:
* <pre>
* assertThat(string, either(containsString("a")).or(containsString("b")));
* </pre>
*/
public static <T> CombinableMatcher<T> either(Matcher<T> matcher) {
return new CombinableMatcher<T>(matcher);
}
}
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