Hamcrest: arrayWithSize: Check array length

By using ‘arrayWithSize’ method, you can create a matcher for arrays that matches when the length of the array equals the specified size.

Ex

String arr[] = { "Hello", "How", "are", "you"};

assertThat("arr size should be equal to 4", arr, arrayWithSize(4));

Find the below working application.

TestApp.java

package com.sample.tests;

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.arrayWithSize;

import org.junit.Test;

public class TestApp {

 @Test
 public void testmethod() {
  String arr[] = { "Hello", "How", "are", "you"};
  assertThat("arr size should be equal to 4", arr, arrayWithSize(4));
 }
}

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