diff --git a/tests/AccessTokenTest.php b/tests/AccessTokenTest.php
new file mode 100644
index 0000000..624a488
--- /dev/null
+++ b/tests/AccessTokenTest.php
@@ -0,0 +1,115 @@
+<?php
+/**
+ * linkedin-client
+ * AccessTokenTest.php
+ *
+ * PHP Version 5
+ *
+ * @category Production
+ * @package  Default
+ * @author   Aleksey Salnikov <me@iamsalnikov.ru>
+ * @date     8/25/17 15:57
+ * @license  http://www.zoonman.com/projects/linkedin-client/license.txt linkedin-client License
+ * @version  GIT: 1.0
+ * @link     http://www.zoonman.com/projects/linkedin-client/
+ */
+
+namespace LinkedIn;
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Class ClientTest
+ *
+ * @package LinkedIn
+ */
+class AccessTokenTest extends TestCase
+{
+    /**
+     * @dataProvider getValidResponseTestTable()
+     * @param AccessToken $expectedToken
+     * @param array $response
+     */
+    public function testConstructorFromResponseArray($expectedToken, $response)
+    {
+        $token = AccessToken::fromResponseArray($response);
+        $this->assertEquals($expectedToken->getToken(), $token->getToken());
+    }
+
+    public function getValidResponseTestTable()
+    {
+        return [
+            [
+                'expectedToken' => new AccessToken('test', 0),
+                'response' => [
+                    'access_token' => 'test',
+                    'expires_in' => 0,
+                ],
+            ]
+        ];
+    }
+
+    /**
+     * @dataProvider getInvalidResponseTestTable()
+     *
+     * @param string $exceptionClass
+     * @param string $exceptionMessage
+     * @param mixed $response
+     */
+    public function testConstructorFromResponseArrayWithException($exceptionClass, $exceptionMessage, $response)
+    {
+        $this->setExpectedException($exceptionClass, $exceptionMessage);
+        AccessToken::fromResponseArray($response);
+    }
+
+    public function getInvalidResponseTestTable()
+    {
+        return [
+            [
+                'expectedException' => \InvalidArgumentException::class,
+                'exceptionMessage' => 'Argument is not array',
+                'response' => null,
+            ],
+            [
+                'expectedException' => \InvalidArgumentException::class,
+                'exceptionMessage' => 'Access token is not available',
+                'response' => [],
+            ],
+            [
+                'expectedException' => \InvalidArgumentException::class,
+                'exceptionMessage' => 'Access token is not available',
+                'response' => [
+                    'access_token' => null,
+                ],
+            ],
+            [
+                'expectedException' => \InvalidArgumentException::class,
+                'exceptionMessage' => 'Access token is not available',
+                'response' => [
+                    'expires_in' => 1,
+                ],
+            ],
+            [
+                'expectedException' => \InvalidArgumentException::class,
+                'exceptionMessage' => 'Access token expiration date is not specified',
+                'response' => [
+                    'access_token' => 'hello',
+                ],
+            ],
+            [
+                'expectedException' => \InvalidArgumentException::class,
+                'exceptionMessage' => 'Access token expiration date is not specified',
+                'response' => [
+                    'access_token' => 'hello',
+                    'expires_in' => null,
+                ],
+            ],
+        ];
+    }
+
+    public function testToString()
+    {
+        $token = new AccessToken('hello', 1);
+        $this->assertEquals('hello', (string) $token);
+    }
+}