1 package org.hamcrest.collection; 2 3 import java.util.Arrays; 4 5 import org.hamcrest.Description; 6 import org.hamcrest.Matcher; 7 import org.hamcrest.TypeSafeMatcher; 8 9 public class IsArray<T> extends TypeSafeMatcher<T[]> { 10 private final Matcher<T>[] elementMatchers; 11 12 public IsArray(Matcher<T>[] elementMatchers) { 13 this.elementMatchers = elementMatchers.clone(); 14 } 15 16 public boolean matchesSafely(T[] array) { 17 if (array.length != elementMatchers.length) return false; 18 19 for (int i = 0; i < array.length; i++) { 20 if (!elementMatchers[i].matches(array[i])) return false; 21 } 22 23 return true; 24 } 25 26 public void describeTo(Description description) { 27 description.appendList(descriptionStart(), descriptionSeparator(), descriptionEnd(), 28 Arrays.asList(elementMatchers)); 29 } 30 31 /** 32 * Returns the string that starts the description. 33 * 34 * Can be overridden in subclasses to customise how the matcher is 35 * described. 36 */ 37 protected String descriptionStart() { 38 return "["; 39 } 40 41 /** 42 * Returns the string that separates the elements in the description. 43 * 44 * Can be overridden in subclasses to customise how the matcher is 45 * described. 46 */ 47 protected String descriptionSeparator() { 48 return ", "; 49 } 50 51 /** 52 * Returns the string that ends the description. 53 * 54 * Can be overridden in subclasses to customise how the matcher is 55 * described. 56 */ 57 protected String descriptionEnd() { 58 return "]"; 59 } 60 61 public static <T> IsArray<T> array(Matcher<T>... elementMatchers) { 62 return new IsArray<T>(elementMatchers); 63 } 64 } 65
