Using value from previous test case in PHPUnit

Question

I am trying to assign a value to a variable inside the first testing function and then use it in other testing functions inside the class.

right now in my code the second function fails due to this error:

   1) ApiAdTest::testApiAd_postedAdCreated
GuzzleHttp\Exception\ClientException: Client error: 404

and i dont know why. this is how the code looks like:

 class ApiAdTest extends PHPUnit_Framework_TestCase
    {
        protected $adId;
        private static $base_url = 'http://10.0.0.38/adserver/src/public/';
        private static $path = 'api/ad/';

        //start of expected flow

        public function testApiAd_postAd()
        {
            $client = new Client(['base_uri' => self::$base_url]);
            $response = $client->post(self::$path, ['form_params' => [
              'name' => 'bellow content - guzzle testing'
              ]]);
            $data = json_decode($response->getBody());
            $this->adId = $data->id;

            $code = $response->getStatusCode();
            $this->assertEquals($code, 200);
        }

        public function testApiAd_postedAdCreated()
        {
            $client = new Client(['base_uri' => self::$base_url]);
            $response = $client->get(self::$path.$this->adId);
            $code = $response->getStatusCode();
            $data = json_decode($response->getBody());

            $this->assertEquals($code, 200);
            $this->assertEquals($data->id, $this->adId);
            $this->assertEquals($data->name, 'bellow content - guzzle testing');
        }

in the phpunit doumintation https://phpunit.de/manual/current/en/fixtures.html i see i can define a a variable inside the setUp method and then use it as i want but in my case i only know the value after the first post executes. any idea how can i use $this->adId in the second function??

vvondra · Accepted Answer · 2015-08-03 07:10:11Z

5

Unit tests by definition should not rely on one another. You will end up with unstable and fragile tests which are then hard to debug the moment they start failing, since the cause is in another test case.

There is no guarantee in which order the tests execute in PHPUnit by default.

PHPUnit supports the @depends annotation to achieve what you want, the docs have the same warning though.

answered Aug 3, 2015 at 7:10

vvondra

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