Added tests for impersonation tokens filter

Author: Jakub Nowak

lib/Gitlab/Api/Users.php

@@ -260,7 +260,7 @@ public function email($id)
      * @param array $params
      * @return mixed
      */
-    public function userImpersonationTokens($user_id, $params = [])
+    public function userImpersonationTokens($user_id, array $params = [])
     {
         if (count($params)) {
             $resolver = $this->createOptionsResolver();
@@ -270,7 +270,7 @@ public function userImpersonationTokens($user_id, $params = [])
             ;
         }
 
-        return $this->get('users/'.$this->encodePath($user_id).'/impersonation_tokens', $resolver->resolve($params));
+        return $this->get('users/'.$this->encodePath($user_id).'/impersonation_tokens', count($params) ? $resolver->resolve($params) : []);
     }
 
     /**

test/Gitlab/Tests/Api/UsersTest.php

@@ -477,6 +477,44 @@ public function shouldDeleteImpersonationTokenForUser()
         $this->assertEquals($expectedBool, $api->removeImpersonationToken(1, 1));
     }
 
+    /**
+     * @test
+     */
+    public function shouldGetCurrentUserActiveImpersonationTokens()
+    {
+        $expectedArray = array(
+            array('id' => 1, 'name' => 'A Name', 'revoked' => true),
+        );
+
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('get')
+            ->with('users/1/impersonation_tokens')
+            ->will($this->returnValue($expectedArray))
+        ;
+
+        $this->assertEquals($expectedArray, $api->userImpersonationTokens(1, ['state' => 'active']));
+    }
+
+    /**
+     * @test
+     */
+    public function shouldGetCurrentUserInactiveImpersonationTokens()
+    {
+        $expectedArray = array(
+            array('id' => 2, 'name' => 'A Name', 'revoked' => false),
+        );
+
+        $api = $this->getApiMock();
+        $api->expects($this->once())
+            ->method('get')
+            ->with('users/1/impersonation_tokens')
+            ->will($this->returnValue($expectedArray))
+        ;
+
+        $this->assertEquals($expectedArray, $api->userImpersonationTokens(1, ['state' => 'inactive']));
+    }
+
     protected function getApiClass()
     {
         return 'Gitlab\Api\Users';