Included testers for equals and hashcode.

src/test/java/model/UserTests.java

@@ -1,6 +1,7 @@
 package model;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertNotEquals;
 
 import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
@@ -14,15 +15,55 @@ public class UserTests {
     @Test
     @DisplayName(" can correctly get the getUsername")
     public void testGetUsername() {
-        User user = new User("testUser", "testPassword");
-        assertEquals("testUser", user.getUsername());
+        User user = new User("a", "b");
+        assertEquals("a", user.getUsername());
     }
 
     @Test
     @DisplayName(" can correctly get the password hash")
     public void testGetPasswordHash() {
-        User user = new User("testUser", "testPassword");
-        assertEquals("testPassword", user.getPasswordHash());
+        User user = new User("a", "b");
+        assertEquals("b", user.getPasswordHash());
     }
 
+    @Test
+    @DisplayName(" can correctly compare two users")
+    public void testEquals() {
+        User user1 = new User("testUser", "testPassword");
+        User user2 = new User("testUser", "testPassword");
+        assertEquals(user1, user2);
+    }
+
+    @Test
+    @DisplayName(" can correctly compare two users with different usernames and passwords")
+    public void testEqualsDifferentUsernameAndPassword() {
+        User user1 = new User("testUser", "testPassword");
+        User user2 = new User("testUser2", "testPassword2");
+        assertNotEquals(user1, user2);
+    }
+
+    @Test
+    @DisplayName(" can correctly compare two users with different types")
+    public void testEqualsDifferentType() {
+        User user1 = new User("testUser2", "testPassword2");
+        String user2 = "qwerty";
+        assertNotEquals(user1, user2);
+    }
+
+    @Test
+    @DisplayName(" can correctly compare a user with himself")
+    public void testEqualsSameUser() {
+        User user1 = new User("me", "myself");
+        assertEquals(user1, user1);
+    }
+
+    @Test
+    @DisplayName(" can correctly compute the hashcode")
+    public void testHashCode() {
+        User user1 = new User("wordle", "wordlePW");
+        User user2 = new User("wordle", "wordlePW");
+        assertEquals(user1.hashCode(), user2.hashCode());
+    }
+
+
 }