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package org.hamcrest.collection;
import java.util.Arrays;
import java.util.Collection;
import org.hamcrest.BaseMatcher;
import org.hamcrest.Description;
import org.hamcrest.Factory;
import org.hamcrest.Matcher;
public class IsIn<T> extends BaseMatcher<T> {
private final Collection<T> collection;
public IsIn(Collection<T> collection) {
this.collection = collection;
}
public IsIn(T[] elements) {
collection = Arrays.asList(elements);
}
public boolean matches(Object o) {
return collection.contains(o);
}
public void describeTo(Description buffer) {
buffer.appendText("one of ");
buffer.appendValueList("{", ", ", "}", collection);
}
@Factory
public static <T> Matcher<T> isIn(Collection<T> collection) {
return new IsIn<T>(collection);
}
@Factory
public static <T> Matcher<T> isIn(T[] elements) {
return new IsIn<T>(elements);
}
@Factory
public static <T> Matcher<T> isOneOf(T... elements) {
return isIn(elements);
}
}
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