Payum\Paypal\ProCheckout\Nvp\Tests\ApiTest::shouldAddTRXTYPEOnDoCreditCall PHP Method

    public function shouldAddTRXTYPEOnDoCreditCall()
    {
        $api = new Api(array('username' => 'aUsername', 'password' => 'aPassword', 'partner' => 'aPartner', 'vendor' => 'aVendor', 'tender' => 'aTender'), $this->createSuccessHttpClientStub(), $this->createHttpMessageFactory());
        $result = $api->doCredit(array());
        $this->assertArrayHasKey('TRXTYPE', $result);
        $this->assertEquals(Api::TRXTYPE_CREDIT, $result['TRXTYPE']);
    }