Using assertArrayEquals in unit tests

Question

My intention is to use assertArrayEquals(int[], int[]) JUnit method described in the API for verification of one method in my class.

But Eclipse shows me the error message that it can't recognize such a method. Those two imports are in place:

import java.util.Arrays; import junit.framework.TestCase; 

Did I miss something?

Answer 1

This would work with JUnit 5:

import static org.junit.jupiter.api.Assertions.*;  assertArrayEquals(new int[]{1,2,3},new int[]{1,2,3}); 

This should work with JUnit 4:

import static org.junit.Assert.*; import org.junit.Test;   public class JUnitTest {       /** Have JUnit run this test() method. */     @Test     public void test() throws Exception {           assertArrayEquals(new int[]{1,2,3},new int[]{1,2,3});       } } 

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This is the same for the old JUnit framework (JUnit 3):

import junit.framework.TestCase;  public class JUnitTest extends TestCase {   public void test() {     assertArrayEquals(new int[]{1,2,3},new int[]{1,2,3});   } } 

Note the difference: no Annotations and the test class is a subclass of TestCase (which implements the static assert methods).

Answer 2

This could be useful if you want to use just assertEquals without depending on your Junit version

assertTrue(Arrays.equals(expected, actual));