Comparing collection using equals method for assertEquals (#2460)

* Comparing collection with equals method.

* replaced all occurence of comparison operator with equals methods for non primitive data types

* added test cases for collections, sets and list

* build failing

Co-authored-by: Prashant Maroti <prashant@ip-192-168-1-2.ap-southeast-1.compute.internal>
Co-authored-by: Prashant Maroti <prashant@ip-192-168-1-4.ap-southeast-1.compute.internal>

CHANGES.txt

@@ -1,4 +1,5 @@
 Current
+Fixed: GITHUB-2296: Fix for assertEquals not working for sets as order is not guaranteed. (Prashant Maroti)
 Fixed: GITHUB-2465: Fix bux where Strings.join returns empty String
 Fixed: GITHUB-1632: throwing SkipException sets iTestResult status to Failure instead of Skip (Julien Herr & Krishnan Mahadevan)
 New  : GITHUB-2456: Add onDataProviderFailure listener (Krishnan Mahadevan)

src/main/java/org/testng/Assert.java

@@ -5,13 +5,13 @@
 import static org.testng.internal.EclipseInterface.ASSERT_MIDDLE;
 import static org.testng.internal.EclipseInterface.ASSERT_RIGHT;
 import static org.testng.internal.EclipseInterface.ASSERT_UNEQUAL_LEFT;
-
 import java.lang.reflect.Array;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
+import java.util.Objects;
 import java.util.Set;
 import org.testng.collections.Lists;
 
@@ -165,7 +165,7 @@ private static boolean areEqualImpl(Object actual, Object expected) {
    * returns not equal reason or null if equal
    **/
   private static String getArrayNotEqualReason(Object actual, Object expected) {
-    if (actual == expected) {
+    if (Objects.equals(actual, expected)) {
       return null;
     }
     if (null == expected) {
@@ -975,7 +975,7 @@ public static void assertNull(Object object, String message) {
    * @param message  the assertion error message
    */
   public static void assertSame(Object actual, Object expected, String message) {
-    if (expected == actual) {
+    if (Objects.equals(actual, expected)) {
       return;
     }
     failNotSame(actual, expected, message);
@@ -1001,7 +1001,7 @@ public static void assertSame(Object actual, Object expected) {
    * @param message  the assertion error message
    */
   public static void assertNotSame(Object actual, Object expected, String message) {
-    if (expected == actual) {
+    if (Objects.equals(actual, expected)) {
       failSame(actual, expected, message);
     }
   }
@@ -1074,7 +1074,7 @@ public static void assertEquals(Collection<?> actual, Collection<?> expected) {
    * @param message  the assertion error message
    */
   public static void assertEquals(Collection<?> actual, Collection<?> expected, String message) {
-    if (actual == expected) {
+    if (Objects.equals(actual, expected)) {
       return;
     }
 
@@ -1126,7 +1126,7 @@ public static void assertEquals(Iterator<?> actual, Iterator<?> expected) {
    * @param message  the assertion error message
    */
   public static void assertEquals(Iterator<?> actual, Iterator<?> expected, String message) {
-    if (actual == expected) {
+    if (Objects.equals(actual, expected)) {
       return;
     }
     if (actual == null || expected == null) {
@@ -1183,7 +1183,7 @@ public static void assertEquals(Iterable<?> actual, Iterable<?> expected) {
    * @param message  the assertion error message
    */
   public static void assertEquals(Iterable<?> actual, Iterable<?> expected, String message) {
-    if (actual == expected) {
+    if (Objects.equals(actual, expected)) {
       return;
     }
 
@@ -1210,7 +1210,7 @@ public static void assertEquals(Iterable<?> actual, Iterable<?> expected, String
    * @param message  the assertion error message
    */
   public static void assertEquals(Object[] actual, Object[] expected, String message) {
-    if (actual == expected) {
+    if (Arrays.equals(actual, expected)) {
       return;
     }
 
@@ -1256,7 +1256,7 @@ public static void assertEquals(Object[] actual, Object[] expected, String messa
    * @param message  the assertion error message
    */
   public static void assertEqualsNoOrder(Object[] actual, Object[] expected, String message) {
-    if (actual == expected) {
+    if (Arrays.equals(actual, expected)) {
       return;
     }
 
@@ -1327,7 +1327,7 @@ public static void assertEquals(Set<?> actual, Set<?> expected) {
    * returns not equal reason or null if equal
    **/
   private static String getNotEqualReason(Set<?> actual, Set<?> expected) {
-    if (actual == expected) {
+    if (Objects.equals(actual, expected)) {
       return null;
     }
 
@@ -1336,7 +1336,7 @@ private static String getNotEqualReason(Set<?> actual, Set<?> expected) {
       return "Sets not equal: expected: " + expected + " and actual: " + actual;
     }
 
-    if (!actual.equals(expected)) {
+    if (!Objects.equals(actual, expected)) {
       return "Sets differ: expected " + expected + " but got " + actual;
     }
     return null;
@@ -1365,7 +1365,7 @@ public static void assertEquals(Set<?> actual, Set<?> expected, String message)
    * returns not equal deep reason or null if equal
    **/
   private static String getNotEqualDeepReason(Set<?> actual, Set<?> expected) {
-    if (actual == expected) {
+    if (Objects.equals(actual, expected)) {
       return null;
     }
 
@@ -1413,7 +1413,7 @@ public static void assertEquals(Map<?, ?> actual, Map<?, ?> expected) {
   }
 
   private static String getNotEqualReason(Map<?, ?> actual, Map<?, ?> expected) {
-    if (actual == expected) {
+    if (Objects.equals(actual, expected)) {
       return null;
     }
 
@@ -1470,7 +1470,7 @@ public static void assertEqualsDeep(Map<?, ?> actual, Map<?, ?> expected) {
    * returns not equal deep reason or null if equal
    **/
   private static String getNotEqualDeepReason(Map<?, ?> actual, Map<?, ?> expected) {
-    if (actual == expected) {
+    if (Objects.equals(actual, expected)) {
       return null;
     }
 

src/test/java/org/testng/AssertTest.java

@@ -2,6 +2,7 @@
 
 import com.google.common.collect.ImmutableMap;
 import org.testng.annotations.Test;
+import org.testng.collections.Lists;
 import org.testng.collections.Maps;
 import org.testng.collections.Sets;
 import testhelper.PerformanceUtils;
@@ -41,6 +42,27 @@ public void nullSetAssertEquals() {
     Assert.assertEquals(actual, expected);
   }
 
+  @Test
+  public void testCollectionAssertEquals() {
+    final Collection<Asymmetric> expected = Sets.newHashSet(new Asymmetric(10, 'a'), new Asymmetric(11, 'b'));
+    final Collection<Asymmetric> actual = Sets.newHashSet(new Asymmetric(11, 'b'), new Asymmetric(10, 'a'));
+    Assert.assertEquals(actual, expected);
+  }
+
+  @Test
+  public void testListAssertNotEquals() {
+    final Collection<Asymmetric> expected = Lists.newArrayList(new Asymmetric(10, 'a'), new Asymmetric(11, 'b'));
+    final Collection<Asymmetric> actual = Lists.newArrayList(new Asymmetric(11, 'b'), new Asymmetric(10, 'a'));
+    Assert.assertNotEquals(actual, expected);
+  }
+
+  @Test
+  public void testSetAssertEquals() {
+    final Set<Asymmetric> expected = Sets.newHashSet(new Asymmetric(10, 'a'), new Asymmetric(11, 'b'));
+    final Set<Asymmetric> actual = Sets.newHashSet(new Asymmetric(11, 'b'), new Asymmetric(10, 'a'));
+    Assert.assertEquals(actual, expected);
+  }
+
   @Test
   public void nullMapAssertEquals() {
     Map expected = null;