Added tests for generating salts and hashing passwords in UserDAOTest.java

src/test/java/UserDAOTest.java

@@ -195,6 +195,15 @@ public class UserDAOTest extends JerseyTest {
         assertNotEquals(beforeNewUser,afterNewUser);
     }
 
+    @Test
+    public void testTwoSaltsAreNotEqual() {
+        UserDAO dao = new UserDAO();
+        byte[] salt1 = dao.generateSalt();
+        byte[] salt2 = dao.generateSalt();
+
+        assertNotEquals(salt1, salt2);
+    }
+
     @Test
     public void testSamePasswordWithSameSalt() {
         UserDAO dao = new UserDAO();
@@ -210,4 +219,36 @@ public class UserDAOTest extends JerseyTest {
         assertEquals(hash1, hash2);
 
     }
+
+    @Test
+    public void testDifferentPasswordWithSameSalt() {
+        UserDAO dao = new UserDAO();
+        byte[] salt = dao.generateSalt();
+        String password1 = "password1";
+        String password2 = "password2";
+
+        User user1 = new User(1, "User 1", password1, salt);
+        User user2 = new User(2, "User 2", password2, salt);
+
+        String hash1 = dao.hashPassword(user1.getPassword(), user1.getSalt());
+        String hash2 = dao.hashPassword(user2.getPassword(), user2.getSalt());
+
+        assertNotEquals(hash1, hash2);
+    }
+
+    @Test
+    public void testSamePasswordWithDifferentSalt() {
+        UserDAO dao = new UserDAO();
+        byte[] salt1 = dao.generateSalt();
+        byte[] salt2 = dao.generateSalt();
+        String password = "password";
+
+        User user1 = new User(1, "User 1", password, salt1);
+        User user2 = new User(2, "User 2", password, salt2);
+
+        String hash1 = dao.hashPassword(user1.getPassword(), user1.getSalt());
+        String hash2 = dao.hashPassword(user2.getPassword(), user2.getSalt());
+
+        assertNotEquals(hash1, hash2);
+    }
 }
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