Add tests for get/setCardToken()

Author: amacneil

tests/Message/AbstractRequestTest.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Omnipay\Stripe\Message;
+
+use Mockery as m;
+use Omnipay\Tests\TestCase;
+
+class AbstractRequestTest extends TestCase
+{
+    public function setUp()
+    {
+        $this->request = m::mock('\Omnipay\Stripe\Message\AbstractRequest')->makePartial();
+        $this->request->initialize();
+    }
+
+    public function testCardToken()
+    {
+        $this->assertSame($this->request, $this->request->setCardToken('abc123'));
+        $this->assertSame('abc123', $this->request->getCardToken());
+        $this->assertSame('abc123', $this->request->getToken());
+    }
+}