diff --git a/.env.sample b/.env.sample
index c302d13..31df2e6 100644
--- a/.env.sample
+++ b/.env.sample
@@ -184,4 +184,13 @@ CORS_DEBUG=true
 
 APP_SIGNATURE = 
 TOKENTIMEOUT = 
-JWT_SECRET =
\ No newline at end of file
+JWT_SECRET =
+
+
+#--------------------------------------------------------------------
+# OTP Configuration
+#--------------------------------------------------------------------
+
+DEFAULT_OTP = ''
+IS_SEND_EMAIL_OTP =  
+IS_SEND_SMS_OTP = 
\ No newline at end of file
diff --git a/app/Controllers/EmployeeRestController.php b/app/Controllers/EmployeeRestController.php
index c5d99b3..8541d19 100755
--- a/app/Controllers/EmployeeRestController.php
+++ b/app/Controllers/EmployeeRestController.php
@@ -1288,6 +1288,8 @@ class EmployeeRestController extends AdminController
 
 
         // Execute query
+
+        $builder->orderBy('files.id', 'desc');
         $data = $builder->get()->getResultArray();
 
         if (!empty($data)) {
diff --git a/app/Controllers/RestAuthenticationController.php b/app/Controllers/RestAuthenticationController.php
index e29c0a7..c6ea35c 100755
--- a/app/Controllers/RestAuthenticationController.php
+++ b/app/Controllers/RestAuthenticationController.php
@@ -158,10 +158,17 @@ class RestAuthenticationController extends AdminController
             }
 
             $otp = random_int(100000, 999999);
-            if($mobile_number == '9442741776')
-            {
+            $default_otp     = env('DEFAULT_OTP') ?? '';
+            $is_send_sms_otp = filter_var(env('IS_SEND_SMS_OTP') ?? true, FILTER_VALIDATE_BOOLEAN);
+
+            if(!empty($default_otp)){
+                $otp = $default_otp;
+                $this->myLogger->logme("error", "REST-AUTH-CONTROLLER - verifyEmployeeWithMobileNumber: Sending default otp");
+            }
+
+            if($mobile_number == '9442741776') {   
                 $otp = '123456';
-                 $this->myLogger->logme("error", "REST-AUTH-CONTROLLER - verifyEmployeeWithMobileNumber: setting 123456 for IOS APP TESTING = " . json_encode($employeeData));
+                $this->myLogger->logme("error", "REST-AUTH-CONTROLLER - verifyEmployeeWithMobileNumber: setting 123456 for IOS APP TESTING = " . json_encode($employeeData));
             }
             
             $this->myLogger->logme("error", "REST-AUTH-CONTROLLER - verifyEmployeeWithMobileNumber: Final employee data to verify = " . json_encode($employeeData));
@@ -211,13 +218,13 @@ class RestAuthenticationController extends AdminController
                     }
 
                     //skip sms for live test no
-                     if($mobile_number == '9442741776')
-                    {
-                       
+                    if($mobile_number == '9442741776' || $is_send_sms_otp == false) {
+
                         $this->myLogger->logme("error", "REST-AUTH-CONTROLLER - verifyEmployeeWithMobileNumber: skip SMS sent for IOS APP TESTING = " . ($mobile_number));
-                          $result = ['user_verification' => true ,'message' => "Verified Successfully" ];
-                        return $this->respond(['status' => 'success','code' => 200,'data' => $result],200);
+                        $result = ['user_verification' => true ,'message' => "Verified Successfully" ];
+                        return $this->respond(['status' => 'success','code' => 200,'data' => $result, 'is_sms_send' => false],200);
                     }
+
                     //send sms 
                     $SMSResult = sendOtpSms($mobile_number, $otp);
                     if ($SMSResult['status'] == 'success') 
@@ -276,6 +283,14 @@ class RestAuthenticationController extends AdminController
 
             $otp = random_int(100000, 999999);
 
+            $default_otp     = env('DEFAULT_OTP') ?? '';
+            $is_send_email_otp = filter_var(env('IS_SEND_EMAIL_OTP') ?? true, FILTER_VALIDATE_BOOLEAN);
+
+            if(!empty($default_otp)){
+                $otp = $default_otp;
+                $this->myLogger->logme("error", "REST-AUTH-CONTROLLER - verifyEmployeeWithMobileNumber: Sending default otp");
+            }
+
             //only retail policy
             if(empty($empdata)){
                 $this->myLogger->logme("error", "REST-AUTH-CONTROLLER - verifyEmployeeWithEmailId: No employee data found both PRE & POST");
@@ -387,6 +402,11 @@ class RestAuthenticationController extends AdminController
                         'mail_type' => 'otp_mail',
                     ];
 
+                    if($is_send_email_otp == false){
+                        $result = ['user_verification' => true, 'message' => "Verified Successfully"];
+                        return $this->respond(['status' => 'success', 'code' => 200, 'data' => $result, 'is_email_send' => false], 200);
+                    }
+
                     $this->myLogger->logme("error", "REST-AUTH-CONTROLLER - verifyEmployeeWithEmailId: Sending OTP email to " . $employeeData['email_corporate']);
                     $res = $this->sendEmailOtp($employeeData['email_corporate'], $otp, $common);
                     $this->myLogger->logme("error", "REST-AUTH-CONTROLLER - verifyEmployeeWithEmailId: Mail response = " . $res);
@@ -596,6 +616,13 @@ class RestAuthenticationController extends AdminController
 
             $otp = random_int(100000, 999999);
 
+            $default_otp     = env('DEFAULT_OTP') ?? '';
+            $is_send_sms_otp = filter_var(env('IS_SEND_SMS_OTP') ?? true, FILTER_VALIDATE_BOOLEAN);
+
+            if(!empty($default_otp)){
+                $otp = $default_otp;
+                $this->myLogger->logme("error", "REST-AUTH-CONTROLLER - verifyEmployeeWithMobileNumber: Sending default otp");
+            }
 
             if ($HrData) 
             {
@@ -617,6 +644,11 @@ class RestAuthenticationController extends AdminController
                         $data->otp = $otp; 
                         $this->callThirdPartyAPI($data, 'updateHROTP');
 
+                        if($is_send_sms_otp == false){
+                            $result = ['user_verification' => true, 'message' => "Verified Successfully"];
+                            return $this->respond(['status' => 'success', 'code' => 200, 'data' => $result, 'is_sms_send' => false], 200);
+                        }
+
                         //send sms 
                         $SMSResult = sendOtpSms($mobile_number, $otp);
                         if ($SMSResult['status'] == 'success') 
@@ -653,6 +685,7 @@ class RestAuthenticationController extends AdminController
 
             $data = $this->request->getJSON();
 
+
             $email = $data->email;
            
             $HrData = $this->hrModel->where('email', $email)
@@ -661,7 +694,16 @@ class RestAuthenticationController extends AdminController
                                     ->first();
           
             $otp = random_int(100000, 999999);
-            $data->otp = $otp;  
+
+            $default_otp     = env('DEFAULT_OTP') ?? '';
+            $is_send_email_otp = filter_var(env('IS_SEND_EMAIL_OTP') ?? true, FILTER_VALIDATE_BOOLEAN);
+
+            if(!empty($default_otp)){
+                $otp = $default_otp;
+                $this->myLogger->logme("error", "REST-AUTH-CONTROLLER - verifyEmployeeWithMobileNumber: Sending default otp");
+            }
+
+            $data->otp = $otp; 
 
             if ($HrData) {
 
@@ -685,10 +727,16 @@ class RestAuthenticationController extends AdminController
                 $update = $db->query($sql, [$otp, $email]);
 
                 if($update)
-                {
+                {   
+
                     $data->otp = $otp; 
                     $this->callThirdPartyAPI($data, 'updateHROTP');
 
+                    if($is_send_email_otp == false){
+                        $result = ['user_verification' => true, 'message' => "Verified Successfully"];
+                        return $this->respond(['status' => 'success', 'code' => 200, 'data' => $result, 'is_email_send' => false], 200);
+                    }
+
                     $common = [
                         'login_type' => 'HR login',
                         'login_email' => $email,
@@ -1932,7 +1980,7 @@ class RestAuthenticationController extends AdminController
         }
 
         $decoded = $result['decoded'];
-        $userId  = $decoded['id'] ?? null;
+        $userId  = $decoded['pre_hr_id'] ?? null;
 
         if (!$userId) {
             return $this->respond([
diff --git a/app/Filters/AuthJWT.php b/app/Filters/AuthJWT.php
index 4eac9e5..00d985d 100755
--- a/app/Filters/AuthJWT.php
+++ b/app/Filters/AuthJWT.php
@@ -115,9 +115,19 @@ class AuthJWT implements FilterInterface
         }
 
         // Refresh sliding expiration
-        $model->update($id, [
-            'token_time_out' => time() + getenv('TOKENTIMEOUT')
-        ]);
+        $newExpiry = time() + getenv('TOKENTIMEOUT');
+
+        if (!isset($decoded['emp_code'])) {
+            // HR user: refresh token_time_out across all branches (same mobile/email)
+            // so switching branches doesn't cause an unexpected expiry
+            $field = !empty($user['mobile']) ? 'mobile' : 'email';
+            $model->where($field, $user[$field])
+                  ->where('contact_type', 'client')
+                  ->where('is_active', 1)
+                  ->update(null, ['token_time_out' => $newExpiry]);
+        } else {
+            $model->update($id, ['token_time_out' => $newExpiry]);
+        }
 
         return true;
     }
diff --git a/app/Helpers/JWTToken.php b/app/Helpers/JWTToken.php
index f7b32ba..1715d54 100755
--- a/app/Helpers/JWTToken.php
+++ b/app/Helpers/JWTToken.php
@@ -137,7 +137,7 @@ class JWTToken
             $token = $jwtParts[0];
 
             try {
-                $decoded = JWT::decode($token, new Key("secret", 'HS512'));
+                $decoded = JWT::decode($token, new Key(env('JWT_SECRET'), 'HS512'));
                 return json_encode(['status' => true, 'message' => 'Token is valid', 'data' =>$decoded->data->id ]);
             } catch (ExpiredException $e) {
                 return json_encode(['status' => false, 'message' => 'Token has expired']);
@@ -159,7 +159,7 @@ class JWTToken
         $jwtParts = explode(' ', $jwt);
         $token = $jwtParts[1];    
         
-        $decoded = JWT::decode($token, new Key("secret", 'HS512'));
+        $decoded = JWT::decode($token, new Key(env('JWT_SECRET'), 'HS512'));
         return $decoded->id;
     }
 
@@ -170,7 +170,7 @@ class JWTToken
         $jwtParts = explode(' ', $jwt);
         $token = $jwtParts[1];    
         
-        $decoded = JWT::decode($token, new Key("secret", 'HS512'));
+        $decoded = JWT::decode($token, new Key(env('JWT_SECRET'), 'HS512'));
         return $decoded->role;
     }
 
@@ -182,7 +182,7 @@ class JWTToken
         $jwtParts = explode(' ', $jwt);
         $token = $jwtParts[1];    
         
-        $decoded = JWT::decode($token, new Key("secret", 'HS512'));
+        $decoded = JWT::decode($token, new Key(env('JWT_SECRET'), 'HS512'));
         return $decoded;
     }
 
diff --git a/app/Views/client_basic_info.php b/app/Views/client_basic_info.php
index 29d2c76..9f651ae 100755
--- a/app/Views/client_basic_info.php
+++ b/app/Views/client_basic_info.php
@@ -238,6 +238,9 @@ input:checked + .slider:before {
                             var message = (PrimaryKey === '') ? 'Client General Info Created successfully' : 'Client General Info Updated successfully';
                             toastr.success(message, 'Success');
                             $submitButton.prop('disabled', false);
+                            let client_name = res.data.client_name ? (' - ' + res.data.client_name) : '';
+                            $('#client_heading').text(client_name);
+
                         }, 1000);
                     }
                     
diff --git a/app/Views/client_onboarding.php b/app/Views/client_onboarding.php
index 08e9359..7f55c01 100755
--- a/app/Views/client_onboarding.php
+++ b/app/Views/client_onboarding.php
@@ -41,7 +41,7 @@ body {
             <div class="card-body">
                 <div class="row" style="padding-bottom: 10px;">
                     <div class="col-6" style="align-self: center;">
-                        <h4  style="position: relative;">Client Onboarding  <?php if(isset($client)) {echo ' - ' . $client['client_name']; } ?></h4>
+                        <h4  style="position: relative;">Client Onboarding  <span id="client_heading"><?php if (isset($client)) { echo ' - ' . $client['client_name']; } ?></span> </h4>
                     </div>
                     <div class="col-6" style="text-align: right;">
                         <a href="<?= base_url("client/list"); ?>"><i class="fas fa-arrow-left" style="font-size: 17px;"></i></a>
diff --git a/tests/unit/HRAuthenticationTest.php b/tests/unit/HRAuthenticationTest.php
new file mode 100644
index 0000000..2c1db65
--- /dev/null
+++ b/tests/unit/HRAuthenticationTest.php
@@ -0,0 +1,607 @@
+<?php
+
+namespace Tests\Unit;
+
+use CodeIgniter\Test\CIUnitTestCase;
+use App\Helpers\JWTToken;
+use App\Filters\AuthJWT;
+use Firebase\JWT\JWT;
+use CodeIgniter\HTTP\IncomingRequest;
+
+class HRAuthenticationTest extends CIUnitTestCase
+{
+    private string $jwtSecret = 'test-secret-key-for-unit-tests';
+    private int $tokenTimeout = 1800; // 30 minutes
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        putenv("JWT_SECRET={$this->jwtSecret}");
+        putenv("TOKENTIMEOUT={$this->tokenTimeout}");
+
+        $_ENV['JWT_SECRET'] = $this->jwtSecret;
+        $_SERVER['JWT_SECRET'] = $this->jwtSecret;
+    }
+
+    protected function tearDown(): void
+    {
+        putenv('JWT_SECRET');
+        putenv('TOKENTIMEOUT');
+        unset($_ENV['JWT_SECRET'], $_SERVER['JWT_SECRET']);
+
+        parent::tearDown();
+    }
+
+    // ── Helpers ──
+
+    private function createToken(array $payload, string $algo = 'HS512'): string
+    {
+        return JWT::encode($payload, $this->jwtSecret, $algo);
+    }
+
+    private function bearerHeader(array $payload): string
+    {
+        return 'Bearer ' . $this->createToken($payload);
+    }
+
+    private function createMockRequest(string $authHeader): IncomingRequest
+    {
+        $request = $this->createMock(IncomingRequest::class);
+        $request->method('getHeaderLine')
+                ->with('Authorization')
+                ->willReturn($authHeader);
+
+        return $request;
+    }
+
+    // ═══════════════════════════════════════════════
+    //  1. validateJWT — Header Format Validation
+    // ═══════════════════════════════════════════════
+
+    public function testValidateJWT_RejectsEmptyHeader()
+    {
+        $result = JWTToken::validateJWT('');
+
+        $this->assertFalse($result['status']);
+        $this->assertEquals('Invalid Authorization header', $result['message']);
+    }
+
+    public function testValidateJWT_RejectsMissingBearerPrefix()
+    {
+        $token = $this->createToken(['id' => 1]);
+
+        $result = JWTToken::validateJWT($token);
+
+        $this->assertFalse($result['status']);
+        $this->assertEquals('Invalid Authorization header', $result['message']);
+    }
+
+    public function testValidateJWT_RejectsBasicAuthScheme()
+    {
+        $result = JWTToken::validateJWT('Basic dXNlcjpwYXNz');
+
+        $this->assertFalse($result['status']);
+        $this->assertEquals('Invalid Authorization header', $result['message']);
+    }
+
+    public function testValidateJWT_RejectsBearerWithExtraSpaces()
+    {
+        $token = $this->createToken(['id' => 1]);
+
+        $result = JWTToken::validateJWT("Bearer  $token");
+
+        $this->assertFalse($result['status']);
+        $this->assertEquals('Invalid Authorization header', $result['message']);
+    }
+
+    public function testValidateJWT_BearerIsCaseSensitive()
+    {
+        $token = $this->createToken(['id' => 1]);
+
+        $result = JWTToken::validateJWT("bearer $token");
+
+        $this->assertFalse($result['status']);
+        $this->assertEquals('Invalid Authorization header', $result['message']);
+    }
+
+    // ═══════════════════════════════════════════════
+    //  2. validateJWT — JWT Structure Validation
+    // ═══════════════════════════════════════════════
+
+    public function testValidateJWT_RejectsMalformedJWT_TwoParts()
+    {
+        $result = JWTToken::validateJWT('Bearer header.payload');
+
+        $this->assertFalse($result['status']);
+        $this->assertEquals('Malformed JWT', $result['message']);
+    }
+
+    public function testValidateJWT_RejectsMalformedJWT_FourParts()
+    {
+        $result = JWTToken::validateJWT('Bearer a.b.c.d');
+
+        $this->assertFalse($result['status']);
+        $this->assertEquals('Malformed JWT', $result['message']);
+    }
+
+    public function testValidateJWT_RejectsMalformedJWT_SinglePart()
+    {
+        $result = JWTToken::validateJWT('Bearer notajwt');
+
+        $this->assertFalse($result['status']);
+        $this->assertEquals('Malformed JWT', $result['message']);
+    }
+
+    // ═══════════════════════════════════════════════
+    //  3. validateJWT — Algorithm Security
+    // ═══════════════════════════════════════════════
+
+    public function testValidateJWT_RejectsNoneAlgorithm()
+    {
+        $header  = base64_encode(json_encode(['alg' => 'none', 'typ' => 'JWT']));
+        $payload = base64_encode(json_encode(['id' => 1]));
+        $fakeToken = "$header.$payload.";
+
+        $result = JWTToken::validateJWT("Bearer $fakeToken");
+
+        $this->assertFalse($result['status']);
+        $this->assertEquals('Invalid or unsupported JWT algorithm', $result['message']);
+    }
+
+    public function testValidateJWT_RejectsMissingAlgorithm()
+    {
+        $header  = base64_encode(json_encode(['typ' => 'JWT']));
+        $payload = base64_encode(json_encode(['id' => 1]));
+        $fakeToken = "$header.$payload.fakesig";
+
+        $result = JWTToken::validateJWT("Bearer $fakeToken");
+
+        $this->assertFalse($result['status']);
+        $this->assertEquals('Invalid or unsupported JWT algorithm', $result['message']);
+    }
+
+    public function testValidateJWT_RejectsHS256Algorithm()
+    {
+        $token = JWT::encode(['id' => 1], $this->jwtSecret, 'HS256');
+
+        $result = JWTToken::validateJWT("Bearer $token");
+
+        $this->assertFalse($result['status']);
+        $this->assertEquals('Invalid or unsupported JWT algorithm', $result['message']);
+    }
+
+    // ═══════════════════════════════════════════════
+    //  4. validateJWT — Signature Validation
+    // ═══════════════════════════════════════════════
+
+    public function testValidateJWT_RejectsTokenSignedWithWrongSecret()
+    {
+        $token = JWT::encode(['id' => 1, 'pre_hr_id' => 5], 'attacker-secret', 'HS512');
+
+        $result = JWTToken::validateJWT("Bearer $token");
+
+        $this->assertFalse($result['status']);
+        $this->assertEquals('Invalid token signature', $result['message']);
+    }
+
+    public function testValidateJWT_RejectsTamperedPayload()
+    {
+        $token = $this->createToken(['id' => 1, 'pre_hr_id' => 5]);
+        $parts = explode('.', $token);
+
+        // Attacker tampers payload to escalate to a different branch
+        $parts[1] = rtrim(base64_encode(json_encode(['id' => 1, 'pre_hr_id' => 999])), '=');
+        $tampered = implode('.', $parts);
+
+        $result = JWTToken::validateJWT("Bearer $tampered");
+
+        $this->assertFalse($result['status']);
+    }
+
+    // ═══════════════════════════════════════════════
+    //  5. validateJWT — Valid Token Decoding
+    // ═══════════════════════════════════════════════
+
+    public function testValidateJWT_AcceptsValidHRToken()
+    {
+        $payload = [
+            'id'              => 10,
+            'pre_hr_id'       => 5,
+            'pre_client_id'   => md5('1'),
+            'pre_branch_id'   => 1,
+            'post_client_id'  => md5('2'),
+            'allowed_modules' => '["dashboard","reports"]',
+        ];
+
+        $result = JWTToken::validateJWT($this->bearerHeader($payload));
+
+        $this->assertTrue($result['status']);
+        $this->assertArrayHasKey('decoded', $result);
+        $this->assertEquals(5, $result['decoded']['pre_hr_id']);
+        $this->assertEquals(10, $result['decoded']['id']);
+        $this->assertEquals(1, $result['decoded']['pre_branch_id']);
+    }
+
+    public function testValidateJWT_AcceptsValidEmployeeToken()
+    {
+        $payload = [
+            'id'         => 1,
+            'emp_code'   => 'EMP001',
+            'token_type' => 'pre',
+        ];
+
+        $result = JWTToken::validateJWT($this->bearerHeader($payload));
+
+        $this->assertTrue($result['status']);
+        $this->assertEquals('EMP001', $result['decoded']['emp_code']);
+    }
+
+    public function testValidateJWT_PreservesAllPayloadFields()
+    {
+        $payload = [
+            'id'              => 10,
+            'pre_hr_id'       => 5,
+            'pre_client_id'   => 'hashed_client',
+            'pre_branch_id'   => 3,
+            'post_client_id'  => 'hashed_post',
+            'allowed_modules' => '["m1"]',
+        ];
+
+        $result = JWTToken::validateJWT($this->bearerHeader($payload));
+        $decoded = $result['decoded'];
+
+        $this->assertEquals($payload['pre_hr_id'], $decoded['pre_hr_id']);
+        $this->assertEquals($payload['pre_branch_id'], $decoded['pre_branch_id']);
+        $this->assertEquals($payload['pre_client_id'], $decoded['pre_client_id']);
+        $this->assertEquals($payload['post_client_id'], $decoded['post_client_id']);
+    }
+
+    // ═══════════════════════════════════════════════
+    //  6. Token Differentiation (HR vs Employee)
+    // ═══════════════════════════════════════════════
+
+    public function testHRToken_DoesNotContainEmpCode()
+    {
+        $hrPayload = ['id' => 10, 'pre_hr_id' => 5, 'pre_branch_id' => 1];
+
+        $result = JWTToken::validateJWT($this->bearerHeader($hrPayload));
+
+        $this->assertTrue($result['status']);
+        $this->assertArrayNotHasKey('emp_code', $result['decoded']);
+    }
+
+    public function testEmployeeToken_ContainsEmpCode()
+    {
+        $empPayload = ['id' => 1, 'emp_code' => 'EMP001'];
+
+        $result = JWTToken::validateJWT($this->bearerHeader($empPayload));
+
+        $this->assertTrue($result['status']);
+        $this->assertArrayHasKey('emp_code', $result['decoded']);
+    }
+
+    public function testFilterRoutesHRToLevelContactModel()
+    {
+        $decoded = ['id' => 10, 'pre_hr_id' => 5, 'pre_branch_id' => 1];
+
+        $this->assertFalse(isset($decoded['emp_code']), 'HR token should NOT have emp_code');
+        $id = $decoded['pre_hr_id'] ?? null;
+        $this->assertEquals(5, $id, 'HR lookup should use pre_hr_id');
+    }
+
+    public function testFilterRoutesEmployeeToEmployeeModel()
+    {
+        $decoded = ['id' => 1, 'emp_code' => 'EMP001'];
+
+        $this->assertTrue(isset($decoded['emp_code']), 'Employee token should have emp_code');
+        $id = $decoded['id'] ?? null;
+        $this->assertEquals(1, $id, 'Employee lookup should use id');
+    }
+
+    // ═══════════════════════════════════════════════
+    //  7. Multi-Branch Token Generation
+    // ═══════════════════════════════════════════════
+
+    public function testEachBranchGetsUniqueToken()
+    {
+        $clientId = md5('42');
+        $branches = [
+            ['id' => 10, 'pre_hr_id' => 5, 'pre_client_id' => $clientId, 'pre_branch_id' => 1],
+            ['id' => 11, 'pre_hr_id' => 6, 'pre_client_id' => $clientId, 'pre_branch_id' => 2],
+            ['id' => 12, 'pre_hr_id' => 7, 'pre_client_id' => $clientId, 'pre_branch_id' => 3],
+        ];
+
+        $tokens = [];
+        foreach ($branches as $branch) {
+            $token = $this->createToken($branch);
+            $result = JWTToken::validateJWT("Bearer $token");
+
+            $this->assertTrue($result['status']);
+            $this->assertEquals($clientId, $result['decoded']['pre_client_id']);
+            $tokens[] = $token;
+        }
+
+        $this->assertCount(3, array_unique($tokens), 'Each branch must produce a distinct token');
+    }
+
+    public function testBranchTokensDecodeToCorrectBranchId()
+    {
+        $branchIds = [1, 2, 3];
+
+        foreach ($branchIds as $i => $branchId) {
+            $payload = [
+                'id'            => 10 + $i,
+                'pre_hr_id'     => 5 + $i,
+                'pre_branch_id' => $branchId,
+            ];
+
+            $result = JWTToken::validateJWT($this->bearerHeader($payload));
+
+            $this->assertTrue($result['status']);
+            $this->assertEquals($branchId, $result['decoded']['pre_branch_id']);
+        }
+    }
+
+    // ═══════════════════════════════════════════════
+    //  8. Sliding Expiration Logic
+    // ═══════════════════════════════════════════════
+
+    public function testTokenTimeoutEnvIsReadable()
+    {
+        $this->assertEquals($this->tokenTimeout, (int)getenv('TOKENTIMEOUT'));
+    }
+
+    public function testNewExpiryIsInTheFuture()
+    {
+        $before    = time();
+        $newExpiry = time() + (int)getenv('TOKENTIMEOUT');
+
+        $this->assertGreaterThanOrEqual($before + $this->tokenTimeout, $newExpiry);
+    }
+
+    public function testActiveTokenPassesExpiryCheck()
+    {
+        $tokenTimeOut = time() + 600;
+
+        $this->assertGreaterThan(time(), $tokenTimeOut, 'Active token_time_out must be in the future');
+    }
+
+    public function testExpiredTokenFailsExpiryCheck()
+    {
+        $tokenTimeOut = time() - 1;
+
+        $this->assertLessThanOrEqual(time(), $tokenTimeOut, 'Expired token_time_out must be <= current time');
+    }
+
+    public function testNullExpiryFailsExpiryCheck()
+    {
+        $tokenTimeOut = null;
+
+        $this->assertTrue($tokenTimeOut <= time(), 'null token_time_out should fail the expiry check');
+    }
+
+    // ═══════════════════════════════════════════════
+    //  9. Multi-Branch Refresh Logic (the fix)
+    // ═══════════════════════════════════════════════
+
+    public function testBranchRefresh_UsesMobileWhenAvailable()
+    {
+        $user = ['mobile' => '9876543210', 'email' => 'hr@test.com'];
+
+        $field = !empty($user['mobile']) ? 'mobile' : 'email';
+
+        $this->assertEquals('mobile', $field);
+        $this->assertEquals('9876543210', $user[$field]);
+    }
+
+    public function testBranchRefresh_FallsBackToEmailWhenMobileEmpty()
+    {
+        $user = ['mobile' => '', 'email' => 'hr@test.com'];
+
+        $field = !empty($user['mobile']) ? 'mobile' : 'email';
+
+        $this->assertEquals('email', $field);
+        $this->assertEquals('hr@test.com', $user[$field]);
+    }
+
+    public function testBranchRefresh_FallsBackToEmailWhenMobileNull()
+    {
+        $user = ['mobile' => null, 'email' => 'hr@test.com'];
+
+        $field = !empty($user['mobile']) ? 'mobile' : 'email';
+
+        $this->assertEquals('email', $field);
+    }
+
+    public function testBranchRefresh_HRUserTakesMultiBranchPath()
+    {
+        $decoded = ['id' => 10, 'pre_hr_id' => 5, 'pre_branch_id' => 1];
+
+        $isMultiBranch = !isset($decoded['emp_code']);
+
+        $this->assertTrue($isMultiBranch, 'HR user (no emp_code) should take the multi-branch refresh path');
+    }
+
+    public function testBranchRefresh_EmployeeTakesSingleRowPath()
+    {
+        $decoded = ['id' => 1, 'emp_code' => 'EMP001'];
+
+        $isSingleRow = isset($decoded['emp_code']);
+
+        $this->assertTrue($isSingleRow, 'Employee (with emp_code) should take the single-row refresh path');
+    }
+
+    /**
+     * Simulates the branch-switching scenario to verify the refresh logic
+     * targets all branches, not just the active one.
+     */
+    public function testBranchRefresh_SimulateMultiBranchExpiryUpdate()
+    {
+        $sameMobile = '9876543210';
+
+        // Three level_contacts rows for the same HR person across branches
+        $branchRows = [
+            ['id' => 5, 'mobile' => $sameMobile, 'email' => 'hr@test.com', 'contact_type' => 'client', 'is_active' => 1, 'token_time_out' => time() + 1800],
+            ['id' => 6, 'mobile' => $sameMobile, 'email' => 'hr@test.com', 'contact_type' => 'client', 'is_active' => 1, 'token_time_out' => time() + 1800],
+            ['id' => 7, 'mobile' => $sameMobile, 'email' => 'hr@test.com', 'contact_type' => 'client', 'is_active' => 1, 'token_time_out' => time() + 1800],
+        ];
+
+        // User is on Branch A (id=5). AuthJWT decoded token says pre_hr_id = 5.
+        $currentUser = $branchRows[0];
+        $decoded     = ['id' => 10, 'pre_hr_id' => 5, 'pre_branch_id' => 1];
+
+        // The filter's multi-branch refresh logic:
+        $field     = !empty($currentUser['mobile']) ? 'mobile' : 'email';
+        $newExpiry = time() + $this->tokenTimeout;
+
+        // Simulate: update all rows where $field matches (same as the WHERE clause in AuthJWT)
+        $updatedRows = array_filter($branchRows, function ($row) use ($field, $currentUser) {
+            return $row[$field] === $currentUser[$field]
+                && $row['contact_type'] === 'client'
+                && $row['is_active'] === 1;
+        });
+
+        foreach ($updatedRows as &$row) {
+            $row['token_time_out'] = $newExpiry;
+        }
+        unset($row);
+
+        // ALL three branches must have the new expiry
+        $this->assertCount(3, $updatedRows, 'All three branch rows should be updated');
+        foreach ($updatedRows as $row) {
+            $this->assertEquals($newExpiry, $row['token_time_out']);
+        }
+    }
+
+    /**
+     * Contrast test: the old single-row logic would only update one branch.
+     */
+    public function testBranchRefresh_OldLogicWouldLeaveOtherBranchesStale()
+    {
+        $loginTime   = time();
+        $timeout     = $this->tokenTimeout;
+        $sameMobile  = '9876543210';
+
+        $branchRows = [
+            ['id' => 5, 'mobile' => $sameMobile, 'token_time_out' => $loginTime + $timeout],
+            ['id' => 6, 'mobile' => $sameMobile, 'token_time_out' => $loginTime + $timeout],
+            ['id' => 7, 'mobile' => $sameMobile, 'token_time_out' => $loginTime + $timeout],
+        ];
+
+        // Simulate 20 minutes of activity on Branch A only (old single-row logic)
+        $simulatedNow = $loginTime + 1200; // 20 min later
+        $branchRows[0]['token_time_out'] = $simulatedNow + $timeout; // only branch A refreshed
+
+        // Branch B and C still have the original login-time expiry
+        $this->assertEquals($loginTime + $timeout, $branchRows[1]['token_time_out']);
+        $this->assertEquals($loginTime + $timeout, $branchRows[2]['token_time_out']);
+
+        // After 31 minutes, Branch B and C would be expired
+        $switchTime = $loginTime + 1860; // 31 min later
+        $this->assertLessThanOrEqual($switchTime, $branchRows[1]['token_time_out'],
+            'OLD logic: Branch B would have expired by the time user switches');
+        $this->assertLessThanOrEqual($switchTime, $branchRows[2]['token_time_out'],
+            'OLD logic: Branch C would have expired by the time user switches');
+
+        // But Branch A is still alive
+        $this->assertGreaterThan($switchTime, $branchRows[0]['token_time_out'],
+            'Branch A stays alive because it was actively refreshed');
+    }
+
+    /**
+     * Proves the new logic keeps all branches alive.
+     */
+    public function testBranchRefresh_NewLogicKeepsAllBranchesAlive()
+    {
+        $loginTime  = time();
+        $timeout    = $this->tokenTimeout;
+        $sameMobile = '9876543210';
+
+        $branchRows = [
+            ['id' => 5, 'mobile' => $sameMobile, 'token_time_out' => $loginTime + $timeout],
+            ['id' => 6, 'mobile' => $sameMobile, 'token_time_out' => $loginTime + $timeout],
+            ['id' => 7, 'mobile' => $sameMobile, 'token_time_out' => $loginTime + $timeout],
+        ];
+
+        // Simulate 20 minutes of activity on Branch A (new multi-branch logic)
+        $simulatedNow = $loginTime + 1200;
+        $newExpiry    = $simulatedNow + $timeout;
+
+        // New logic refreshes ALL rows with same mobile
+        foreach ($branchRows as &$row) {
+            if ($row['mobile'] === $sameMobile) {
+                $row['token_time_out'] = $newExpiry;
+            }
+        }
+        unset($row);
+
+        // After 31 minutes from login, ALL branches are still alive
+        $switchTime = $loginTime + 1860;
+
+        foreach ($branchRows as $i => $row) {
+            $this->assertGreaterThan($switchTime, $row['token_time_out'],
+                "NEW logic: Branch id={$row['id']} should still be alive after switching");
+        }
+    }
+
+    // ═══════════════════════════════════════════════
+    //  10. AuthJWT Filter — Rejection Tests
+    // ═══════════════════════════════════════════════
+
+    private function createFilter(): AuthJWT
+    {
+        // AuthJWT has require_once('../vendor/autoload.php') which resolves
+        // relative to CWD. In Apache CWD is public/, in PHPUnit it's the
+        // project root. Temporarily switch CWD so the require resolves.
+        $cwd = getcwd();
+        chdir(PUBLICPATH);
+        try {
+            return new AuthJWT();
+        } finally {
+            chdir($cwd);
+        }
+    }
+
+    public function testFilter_RejectsMissingAuthHeader()
+    {
+        $filter  = $this->createFilter();
+        $request = $this->createMockRequest('');
+
+        $result = $filter->before($request);
+
+        $this->assertNotTrue($result, 'Filter must reject requests without Authorization header');
+    }
+
+    public function testFilter_RejectsInvalidJWT()
+    {
+        $filter  = $this->createFilter();
+        $request = $this->createMockRequest('Bearer not.a.valid-jwt');
+
+        $result = $filter->before($request);
+
+        $this->assertNotTrue($result, 'Filter must reject requests with an invalid JWT');
+    }
+
+    public function testFilter_RejectsTokenWithoutId()
+    {
+        $token   = $this->createToken(['name' => 'no-id-field']);
+        $filter  = $this->createFilter();
+        $request = $this->createMockRequest("Bearer $token");
+
+        $result = $filter->before($request);
+
+        $this->assertNotTrue($result, 'Filter must reject tokens without an id field');
+    }
+
+    public function testFilter_RejectsWrongAlgorithmToken()
+    {
+        $token   = JWT::encode(['id' => 1], $this->jwtSecret, 'HS256');
+        $filter  = $this->createFilter();
+        $request = $this->createMockRequest("Bearer $token");
+
+        $result = $filter->before($request);
+
+        $this->assertNotTrue($result, 'Filter must reject tokens using non-HS512 algorithms');
+    }
+}