From 2d4598d82d0e5c36b6b725b80982e94f160c37a6 Mon Sep 17 00:00:00 2001
From: Eugene Kovko <37694937+eukovko@users.noreply.github.com>
Date: Fri, 26 Apr 2024 18:41:27 +0200
Subject: [PATCH] Bael 7891 (#16494)

* BAEL-7891: Test for equality vs identity

* BAEL-7891: Fixed formatting

* BAEL-7891: Fixed a type and a bug
---
 .../equalsvssame/EqualsVsSameUnitTest.java    | 57 +++++++++++++++++++
 .../baeldung/junit/equalsvssame/Person.java   | 21 +++++++
 2 files changed, 78 insertions(+)
 create mode 100644 testing-modules/junit-5-basics-2/src/test/java/com/baeldung/junit/equalsvssame/EqualsVsSameUnitTest.java
 create mode 100644 testing-modules/junit-5-basics-2/src/test/java/com/baeldung/junit/equalsvssame/Person.java

diff --git a/testing-modules/junit-5-basics-2/src/test/java/com/baeldung/junit/equalsvssame/EqualsVsSameUnitTest.java b/testing-modules/junit-5-basics-2/src/test/java/com/baeldung/junit/equalsvssame/EqualsVsSameUnitTest.java
new file mode 100644
index 0000000000..2019f44185
--- /dev/null
+++ b/testing-modules/junit-5-basics-2/src/test/java/com/baeldung/junit/equalsvssame/EqualsVsSameUnitTest.java
@@ -0,0 +1,57 @@
+package com.baeldung.junit.equalsvssame;
+
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
+import static org.junit.jupiter.api.Assertions.assertNotSame;
+import static org.junit.jupiter.api.Assertions.assertSame;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
+
+class EqualsVsSameUnitTest {
+
+    @ParameterizedTest
+    @ValueSource(strings = {"Hello", "World"})
+    void givenAString_WhenCompare_ThenItEqualsAndSame(String string) {
+        assertEquals(string, string);
+        assertSame(string, string);
+    }
+
+    public boolean equals(Object obj) {
+        return (this == obj);
+    }
+
+    @ParameterizedTest
+    @ValueSource(strings = {"Hello", "World"})
+    void givenAStrings_WhenCompareNewStrings_ThenItEqualsButNotSame(String string) {
+        assertEquals(new String(string), new String(string));
+        assertNotSame(new String(string), new String(string));
+    }
+
+    @ParameterizedTest
+    @ValueSource(strings = {"Hello", "World"})
+    void givenAString_WhenCompareInJava_ThenItEqualsAndSame(String string) {
+        assertTrue(string.equals(string));
+        assertTrue(string == string);
+    }
+
+    @ParameterizedTest
+    @ValueSource(strings = {"Hello", "World"})
+    void givenAStrings_WhenCompareNewStringsInJava_ThenItEqualsButNotSame(String string) {
+        assertTrue(new String(string).equals(new String(string)));
+        assertFalse(new String(string) == new String(string));
+    }
+
+    @Test
+    void givePeople_WhenCompareWithoutOverridingEquals_TheyNotEqual() {
+        Person firstPerson = new Person("John", "Doe");
+        Person secondPerson = new Person("John", "Doe");
+        assertNotEquals(firstPerson, secondPerson);
+    }
+
+
+}
diff --git a/testing-modules/junit-5-basics-2/src/test/java/com/baeldung/junit/equalsvssame/Person.java b/testing-modules/junit-5-basics-2/src/test/java/com/baeldung/junit/equalsvssame/Person.java
new file mode 100644
index 0000000000..2c0e0a34d8
--- /dev/null
+++ b/testing-modules/junit-5-basics-2/src/test/java/com/baeldung/junit/equalsvssame/Person.java
@@ -0,0 +1,21 @@
+package com.baeldung.junit.equalsvssame;
+
+public class Person {
+
+    private final String firstName;
+    private final String lastName;
+
+    public Person(String firstName, String lastName) {
+        this.firstName = firstName;
+        this.lastName = lastName;
+    }
+
+    public String getFirstName() {
+        return firstName;
+    }
+
+    public String getLastName() {
+        return lastName;
+    }
+}
+