Update CdnManagerTest.php

Author: ankadada

tests/Qiniu/Tests/CdnManagerTest.php

@@ -25,7 +25,7 @@ protected function setUp()
 
         $this->cdnManager = new CdnManager($testAuth);
         $this->encryptKey = $timestampAntiLeechEncryptKey;
-        $this->imgUrl = $customDomain . '/20.jpg';
+        $this->imgUrl = $customDomain . '/24.jpg';
     }
 
     public function testCreateTimestampAntiLeechUrl()
@@ -34,7 +34,7 @@ public function testCreateTimestampAntiLeechUrl()
         $signUrl = $this->cdnManager->createTimestampAntiLeechUrl($this->imgUrl, $this->encryptKey, 3600);
 
         $response = Client::get($signUrl);
-        print_r($signUrl);
+        
         $this->assertEquals($response->statusCode, 200);
         $this->assertNull($response->error);