codeception: using REST module on TEST

i have this code on \tests\unit\ReportTest.php :

class ReportTest extends \Codeception\TestCase\Test
{

    protected function _before()
    {
        Auth::attempt(['email' => $this->valid_email, 'password' => $this->valid_password]);
    }

    protected function _after()
    {
    }

    public function testMe()
    {
        $this->sendGet(route('index'));
        $this->canSeeResponseCodeIs(200);
    }
}

my problem was the method $this->sendGet() and $this->canSeeResponseCodeIs() was not undefined, im kind of new on using codeception so bear with me guys,

here is my unit.suite.yml:

class_name: UnitTester
modules:
    enabled:
        - Asserts
        - \Helper\Unit
        - Laravel5
        - REST:
            depends: PhpBrowser
    config:
      Laravel5:
        environment_file: .env

i want to use that REST module, but i cant get it to work.

via Chebli Mohamed