java - How can I create a JUnit test to test CompareTo? -

in code have 2 static methods. 1 using compare contents of 2 arrays of int's, , 1 comparing contents of 2 arrays of strings (in same order). how can structure junit test 1 of these methods? i'm thinking use edit** created test works not accurate.

//edited test, passes isn't correct.     public class arraycomparertests {         @test         public void testintarray() {     //      arraycomparer arraycomparer = new arraycomparer();             int[] list1 = {2,2,3};             int[] list2 = {1};             assertequals(false, arraycomparer.compareintarrays(list1, list2));         }      }     public class arraycomparer {         public static boolean compareintarrays(int[] list1, int[] list2) {              // checks same array reference             if (list1 == list2) {                 return true;             }              // checks null arrays             if (list1 == null || list2 == null) {                 return false;             }              // arrays should of equal length             if (list2.length != list1.length) {                 return false;             }              // compare array values             (int = 0; < list1.length; i++) {                 (i = 0; < list2.length; i++) {                     if (list1[i] != list2[i])                         return false;                 }             }             return true;         }           public static boolean comparestringarrays(string[] list3, string[] list4) {             // checks same array reference             if (list3 == list4) {                 return true;             }              // checks null arrays             if (list3 == null || list4 == null) {                 return false;             }              // arrays should of equal length             if (list4.length != list3.length) {                 return false;             }              // compare array values             (int = 0; < list3.length; i++) {                 (i = 0; < list4.length; i++) {                     if (list3[i] != list4[i])                         return false;                 }             }             return true;         }     } 

you can use assert.assertarrayequals.

@test public void testintarray() {     int[] list1 = {2,2,3};     int[] list2 = {1};     // assertion fail     assert.assertarrayequals(list2, list1);      // assertion pass     int list3 = {2,2,3};     assert.assertarrayequals(list1, list3); }