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package org.hamcrest.collection;
import java.util.Arrays;
import org.hamcrest.Description;
import org.hamcrest.Matcher;
import org.hamcrest.TypeSafeMatcher;
public class IsArray<T> extends TypeSafeMatcher<T[]> {
private final Matcher<T>[] elementMatchers;
public IsArray(Matcher<T>[] elementMatchers) {
this.elementMatchers = elementMatchers.clone();
}
public boolean matchesSafely(T[] array) {
if (array.length != elementMatchers.length) return false;
for (int i = 0; i < array.length; i++) {
if (!elementMatchers[i].matches(array[i])) return false;
}
return true;
}
public void describeTo(Description description) {
description.appendList(descriptionStart(), descriptionSeparator(), descriptionEnd(),
Arrays.asList(elementMatchers));
}
/**
* Returns the string that starts the description.
*
* Can be overridden in subclasses to customise how the matcher is
* described.
*/
protected String descriptionStart() {
return "[";
}
/**
* Returns the string that separates the elements in the description.
*
* Can be overridden in subclasses to customise how the matcher is
* described.
*/
protected String descriptionSeparator() {
return ", ";
}
/**
* Returns the string that ends the description.
*
* Can be overridden in subclasses to customise how the matcher is
* described.
*/
protected String descriptionEnd() {
return "]";
}
public static <T> IsArray<T> array(Matcher<T>... elementMatchers) {
return new IsArray<T>(elementMatchers);
}
}
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