diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c5a6b38
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,14 @@
+build
+vendor
+tests/TestSupport/temp
+tests/temp
+composer.lock
+phpunit.xml
+.env
+.phpunit.cache/
+.phpunit.result.cache
+.phpunit.cache/test-results
+.php-cs-fixer.cache
+phpstan.neon
+tests/Support/temp/
+.idea/
diff --git a/src/Enums/Requests/HTTPState.php b/src/Enums/Requests/HTTPState.php
index 5e8171d..950e749 100644
--- a/src/Enums/Requests/HTTPState.php
+++ b/src/Enums/Requests/HTTPState.php
@@ -10,6 +10,12 @@ enum HTTPState: int
      */
     case OK = 200;
 
+    /**
+     * HTTP client error response
+     * status is bad request
+     */
+    case BAD_REQUEST = 400;
+
     /**
      * HTTP client error response
      * status is unauthorized
@@ -22,4 +28,10 @@ enum HTTPState: int
      */
     case PAYMENT_REQUIRED = 402;
 
+    /**
+     * HTTP client error response
+     * status is forbidden
+     */
+    case FORBIDDEN = 403;
+
 }
diff --git a/tests/HandelResultQwenTest.php b/tests/HandelResultQwenTest.php
new file mode 100644
index 0000000..51797d9
--- /dev/null
+++ b/tests/HandelResultQwenTest.php
@@ -0,0 +1,55 @@
+<?php
+namespace Qwen\Tests;
+
+
+use Qwen\Enums\Requests\HTTPState;
+use PHPUnit\Framework\TestCase;
+use Qwen\QwenClient;
+
+class HandelResultQwenTest extends TestCase
+{
+    protected $apiKey;
+    protected $expiredApiKey;
+    protected function setUp():void
+    {
+        $this->apiKey = "valid-api-key";
+        $this->expiredApiKey = "expired-api-key";
+    }
+    
+    public function test_ok_response()
+    {
+        $qwen = QwenClient::build($this->apiKey)
+            ->query('Hello Qwen, how are you today?');
+        $response = $qwen->run();
+        $result = $qwen->getResult();
+
+        $this->assertNotEmpty($response);
+        $this->assertTrue($result->isSuccess());
+        $this->assertEquals(HTTPState::OK->value, $result->getStatusCode());
+    }
+
+    public function test_can_not_access_with_api_expired_payment()
+    {
+        $qwen = QwenClient::build($this->expiredApiKey)
+            ->query('Hello Qwen, how are you today?');
+        $response = $qwen->run();
+        $result = $qwen->getResult();
+        
+        $this->assertNotEmpty($response);
+        if(!$result->isSuccess())
+        {
+            $this->assertEquals(HTTPState::BAD_REQUEST->value, $result->getStatusCode());
+        }
+    }
+
+    public function test_access_with_wrong_api_key()
+    {
+        $qwen = QwenClient::build($this->apiKey."wrong-api-key")
+            ->query('Hello Qwen, how are you today?');
+        $response = $qwen->run();
+        $result = $qwen->getResult();
+        
+        $this->assertNotEmpty($response);
+        $this->assertEquals(HTTPState::UNAUTHORIZED->value, $result->getStatusCode());
+    }
+}
diff --git a/tests/QwenTest.php b/tests/QwenTest.php
new file mode 100644
index 0000000..a756750
--- /dev/null
+++ b/tests/QwenTest.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace Qwen\Tests;
+
+use PHPUnit\Framework\TestCase;
+use Qwen\QwenClient;
+
+class QwenTest extends TestCase
+{
+    // Tests will come soon
+}