By the sum of PHPUnit assertion power and Symfony2 functional testing tools the developer can obtain a deep control on the developed application. Here you can find some suggestions on how to leverage that power.

1. PHPUnit elevato alla Symfony2
Eugenio Pombi
Symfony Day 05 October 2012
@euxpom nerd2business.net

2. Symfony2 Functional testing tools
● SymfonyBundleFrameworkBundleClient
● SymfonyBundleFrameworkBundleCrawler
● SymfonyComponentHttpKernelProfilerProfile
● SymfonyBundleDoctrineFixturesBundle

3. Profiler
config time
->getBundles() ->getTotalTime()
->getEnv() memory
request ->getMemory()
->getRouteParams() router
->getController() ->getRedirect()
exception security
->hasException() ->getUser()
events
->getRoles()
->GetCalledListeners()
->isAuthenticated()
->getNotCalledListeners()
swiftmailer
logger
->getMessageCount()
->CountErrors()
->getMessages()
->getLogs()

4. Doctrine profiler
db
->getQueryCount()
->getTime()
->getQueries()
query
['sql']
['params']
['types']
['executionMS']

5. Stubbing
An example with Paypal

10. namespace JMSPaymentPaypalBundleClient;
class Client {
[...]
public function request(Request $request) {
[...]
// perform the request
if (false === $returnTransfer = curl_exec($curl)) {
throw new CommunicationException(
'cURL Error: '.curl_error($curl), curl_errno($curl)
);
}
[...]
$response = new RawResponse(
substr($returnTransfer, $headerSize),
curl_getinfo($curl, CURLINFO_HTTP_CODE),
$headers
);
curl_close($curl);
return $response;
}
}

11. namespace JMSPaymentPaypalBundleClient;
class Client {
[...]
public function request(Request $request) {
[...]
// perform the request
if (false === $returnTransfer = curl_exec($curl)) {
throw new CommunicationException(
'cURL Error: '.curl_error($curl), curl_errno($curl)
);
}
[...]
$response = new RawResponse(
substr($returnTransfer, $headerSize),
curl_getinfo($curl, CURLINFO_HTTP_CODE),
$headers
);
curl_close($curl);
return $response;
}
}

12. namespace JMSPaymentPaypalBundleClient;
class Client {
[...]
public function request(Request $request) {
[...]
// perform the request
if (false === $returnTransfer = curl_exec($curl)) {
throw new CommunicationException(
'cURL Error: '.curl_error($curl), curl_errno($curl)
);
}
[...]
$response = new RawResponse(
substr($returnTransfer, $headerSize),
curl_getinfo($curl, CURLINFO_HTTP_CODE),
$headers
);
curl_close($curl);
return $response;
}
}

13. namespace ACMEPaymentBundleTestsStub;
use JMSPaymentPaypalBundleClientClient;
class PaypalClientStub extends Client {
public function request(Request $request)
{
$response = new RawResponse(
"TOKEN=BlaBlaBlaBla",
200,
array(
'Date' => "Fri, 07 Sep 2012 15:21:00 GMT",
'Server' => "Apache",
)
);
return $response;
}
}

14. namespace ACMEPaymentBundleTestsStub;
use JMSPaymentPaypalBundleClientClient;
class PaypalClientStub extends Client {
public function request(Request $request)
{
$response = new RawResponse(
"TOKEN=BlaBlaBlaBla",
200,
array(
'Date' => "Fri, 07 Sep 2012 15:21:00 GMT",
'Server' => "Apache",
)
);
return $response;
}
}

15. services.xml
<parameter key="payment.paypal.client.class">
JMSPaymentPaypalBundleClientClient
</parameter>
config_test.yml
parameters:
payment.paypal.client.class:
ACMEPaymentBundleTestsStubPaypalClientStub

18. namespace JMSPaymentPaypalBundleClient;
class Client {
[...]
public function getAuthenticateExpressCheckoutTokenUrl($token) {
$host = $this->isDebug ? 'www.sandbox.paypal.com':'www.paypal.com';
return $host;
}
}

19. namespace ACMEPaymentBundleTestsStub;
use JMSPaymentPaypalBundleClientClient;
class PaypalClientStub extends Client {
public function getAuthenticateExpressCheckoutTokenUrl($token)
{
return '/payment/paypalFakeController';
}
}

21. namespace ACMEPaymentBundleTestsStub;
use JMSPaymentPaypalBundleClientClient;
class PaypalClientStub extends Client {
public function request(Request $request)
{
if ($request->request->get('METHOD') == 'SetExpressCheckout') {
$response = new RawResponse(
"TOKEN=BlaBlaBla",
);
} elseif ($request->request->get('METHOD') == 'GetExpressCheckoutDetails')
{
$response = new RawResponse(
"CHECKOUTSTATUS=PaymentCompleted&ACK=Success",
);
} elseif ($request->request->get('METHOD') == 'DoExpressCheckoutPayment'){
$response = new RawResponse(
"PAYMENTINFO_0_PAYMENTSTATUS=Completed",
);
}
return $response;
}
}

22. namespace ACMEPaymentBundleTestsStub;
use JMSPaymentPaypalBundleClientClient;
class PaypalClientStub extends Client {
public function request(Request $request)
{
if ($request->request->get('METHOD') == 'SetExpressCheckout') {
$response = new RawResponse(
"TOKEN=BlaBlaBla",
);
} elseif ($request->request->get('METHOD') == 'GetExpressCheckoutDetails')
{
$response = new RawResponse(
"CHECKOUTSTATUS=PaymentCompleted&ACK=Success",
);
} elseif ($request->request->get('METHOD') == 'DoExpressCheckoutPayment'){
$response = new RawResponse(
"PAYMENTINFO_0_PAYMENTSTATUS=Completed",
);
}
return $response;
}
}

23. namespace ACMEPaymentBundleTestsStub;
use JMSPaymentPaypalBundleClientClient;
class PaypalClientStub extends Client {
public function request(Request $request)
{
if ($request->request->get('METHOD') == 'SetExpressCheckout') {
$response = new RawResponse(
"TOKEN=BlaBlaBla",
);
} elseif ($request->request->get('METHOD') == 'GetExpressCheckoutDetails')
{
$response = new RawResponse(
"CHECKOUTSTATUS=PaymentCompleted&ACK=Success",
);
} elseif ($request->request->get('METHOD') == 'DoExpressCheckoutPayment'){
$response = new RawResponse(
"PAYMENTINFO_0_PAYMENTSTATUS=Completed",
);
}
return $response;
}
}

24. Something is missing

25. Control on the request
namespace ACMEPaymentBundleTestsStub;
use JMSPaymentPaypalBundleClientClient;
class PaypalClientStub extends Client {
public function request(Request $request)
{
if ($request != "OK STUFF") {
throw new Exception ("Wrong Request for Paypal
call");
}
[...]
return $response;
}
}

26. What is “outside”?
● External API

27. What is “outside”?
● External API
● OS services (time)

28. What is “outside”?
● External API
● OS services (time)
● Systems that don't exist yet

29. What is “outside”?
● External API
● OS services (time)
● Systems that don't exist yet
● Systems that other people is working on

30. What is “outside”?
● External API
● OS services (time)
● Systems that don't exist yet
● Systems that other people is working on
● Monsters from the inside(legacy code)

31. The date/time case
● A user can see the next three appointments

32. The date/time case
● A user can see the next three appointments
● A user is shown an alert in home page if she
has an appointment in the next 6 hours

33. The date/time case
● A user can see the next three appointments
● A user is shown an alert in home page if she
has an appointment in the next 6 hours
● A user can take an appointment for the next
day, but if it is Friday the next eligible day will
be Monday

34. namespace ACMECoreBundleService;
class Time
{
public static function getNow()
{
return new DateTime();
}
}

35. namespace AcmeCoreBundleTestService;
class Time
{
public static $referenceTime = '2012-05-01 12:00:00';
public static $time = null;
public static function getNow()
{
if (is_null(self::$time)) {
return new DateTime(self::$referenceTime);
} else {
return new DateTime(self::$time);
}
}
}

36. namespace AcmeCoreBundleTestService;
class Time
{
public static $referenceTime = '2012-05-01 12:00:00';
public static $time = null;
public static function getNow()
{
if (is_null(self::$time)) {
return new DateTime(self::$referenceTime);
} else {
return new DateTime(self::$time);
}
}
}

37. Inside the fixtures
Use AcmeCoreBundleTestServiceTime;
public function load(ObjectManager $manager)
{
$appointmentToday = new Appointment();
$appointmentToday->setDateTime(new DateTime(Time::$referenceTime));
[...]
}

38. Inside the test
Use AcmeCoreBundleTestServiceTime;
public function test_customerHome()
{
AcmeCoreBundleTestServiceTime::$time = "2012-06-01";
[...]
}

39. Different config states
$client =
self::createClient(array('environment' => 'test_alternative'));

40. Thank You
@euxpom
nerd2business.net