SmokeTests

1. SmokeTests Why you should try to burn down your production environment

2. Sebastian Thoß Chapter Lead Backend

4. Disclaimer

5. Agenda • Project Architecture • Types Of Tests • SmokeTests • Server Architecture • Questions & Answers

6. Project  Architecture

7. "one hundred fifty-seven quinvigintillion, seven hundred eighty-six quattuorvigintillion, six hundred fifty-seven trevigintillion, seven hundred forty-seven duovigintillion, three hundred forty unvigintillion, one hundred eighty-six vigintillion, (…) nine hundred forty-five quintillion, eight hundred twenty-eight quadrillion, two hundred seventy trillion, eighty billion, …"

10. Webserver Key-Value Store Search FURY Frontend FURY Backend FURY Components

11. Webserver Key-Value Store Search FURY Frontend FURY Backend Legacy RDBMSLegacy System Session Storage Collect & Export K-V  Store

12. Webserver Key-Value Store Search FURY Frontend FURY Backend Legacy RDBMSLegacy System FURY Requests 200OK Session Storage K-V  Store

13. Webserver Key-Value Store Search FURY Frontend FURY Backend Legacy RDBMSLegacy System Requests to Legacy System 404NOTFOUND Session Storage K-V  Store

14. Webserver Key-Value Store Search FURY Frontend FURY Backend Legacy RDBMSLegacy System Requests to Legacy System 404NOTFOUND 200 OK Session Storage K-V  Store

15. More information on www.sebastianthoss.de

16. Types Of Tests

17. Test Pyramid UNITTESTS

18. Class 2 Class 3 Mock Mock Unit Tests Class 1 Class 4

20. Test Pyramid INTEGRATION TESTS UNITTESTS

21. Class 4Class 3 Integration Tests Class 1 Class 2 Mock Mock

22. Test Pyramid INTEGRATION TESTS UNITTESTS 100%CODECOVERAGE

23. Test Pyramid ACCEPTANCE TESTS INTEGRATION TESTS UNITTESTS

24. Acceptance Tests Class 1 Class 2 Class 3 Class 4

25. Test Pyramid ACCEPTANCE TESTS INTEGRATION TESTS UNITTESTS ?

26. SmokeTests

27. What are SmokeTests? In computer programming and software testing, smoke testing is preliminary testing to reveal simple failures severe enough to reject a prospective software release.  Source: https://en.wikipedia.org/wiki/Smoke_testing

28. What are SmokeTests?

29. SmokeTests should… • … be simple • … be fast • … test pages with optional parameters too • … cover at least all URLs in google index • … use a manual maintained list of URLs

30. How do SmokeTests work? https://www.my-application.com/foo <html><body>…</body></html> TTFB: 65ms HTTP 1.1/200 OK SmokeTest  Client CI Server Application   to test Production Server

31. How do SmokeTests work? https://www.my-application.com/foo <html><body>…</body></html> TTFB: 320ms HTTP 1.1/200 OK SmokeTest  Client CI Server Production Server Application   to test

32. What should SmokeTests validate? • Status code • Time to ﬁrst byte • If body is provided • Correct server

33. SmokeTests are NOT Acceptance Tests SmokeTest  Client HTTP 1.1/200 OK <html> <head> <title>Foo</title> <body> <div id="bar"><span>foobar</span></div> </body> </html>

34. namespace KartenmachereiTesting; use PHPUnit_Framework_TestCase; class SmokeTest extends PHPUnit_Framework_TestCase { /** * @dataProvider furyUrlProvider * * @param Url $url */ public function testFuryUrl(Url $url) { $result = $this->sendGetRequest($url); $this->assertSame(200, $result->getStatusCode()); $this->assertNotEmpty($result->getBody()); $this->assertLessThanOrEqual(100, $result->getTimeToFirstByteInMilliseconds()); } public function furyUrlProvider() { $urls = ['http://www.kartenmacherei.de', …]; $urlCollection = UrlCollection::fromStrings($urls); return $urlCollection->asDataProviderArray($urlCollection); }

35. How to speed up SmokeTests?

36. Concurrent SmokeTests SmokeTest  Client CI Server Application  to test Production Server https://www.my-application.com/baz https://www.my-application.com/bar https://www.my-application.com/foo

37. Concurrent SmokeTests https://www.my-application.com/baz https://www.my-application.com/bar https://www.my-application.com/foo TTFB: 34ms SmokeTest  Client CI Server Application  to test Production Server

38. Concurrent SmokeTests https://www.my-application.com/foobaz https://www.my-application.com/bar https://www.my-application.com/foo SmokeTest  Client CI Server Application  to test Production Server

39. Concurrent SmokeTests TTFB: 65ms https://www.my-application.com/foobaz https://www.my-application.com/bar https://www.my-application.com/foo SmokeTest  Client CI Server Application  to test Production Server

40. Concurrent SmokeTests https://www.my-application.com/123 https://www.my-application.com/foobaz https://www.my-application.com/bar SmokeTest  Client CI Server Application  to test Production Server

41. Concurrent SmokeTests TTFB: 620ms https://www.my-application.com/123 https://www.my-application.com/foobaz https://www.my-application.com/bar SmokeTest  Client CI Server Application  to test Production Server

42. Source: http://www.ve7kfm.com/fcc-server.jpg

43. Let’s try to burn it down!

44. There is a package for SmokeTests DjThossi/Smoke-Testing-PHP

45. DataProvider Test Application HTTP Requests HTTP Responses PHPUnit Call Result[] Result

46. class SmokeTest extends PHPUnit_Framework_TestCase { use SmokeTestTrait; /** * @dataProvider myDataProvider */ public function testExample(Result $result) { $this->assertSuccess($result); $this->assertTimeToFirstByte(new TimeToFirstByte(100), $result); $this->assertBodyNotEmpty($result); $this->assertHeaderExists(Header::fromPrimitives(‘App-Server', ‘Fury’), $result); } public function myDataProvider() { $urls = ['http://www.kartenmacherei.de', …]; $options = new SmokeTestOptions( UrlCollection::fromStrings($urls), new RequestTimeout(2), new FollowRedirects(true), new Concurrency(3), new BodyLength(500) ); return $this->runSmokeTests($options); }

52. Output

53. Features to come next • Improve ErrorResult object • Introduce assertions for Redirects • Improve quality of error message • 2nd version based on PHPUnit 6

54. Server Architecture

55. Webserver (Router) Webserver FURY Frontend Server A K/V StoreSearch FURY Backend Webserver FURY Frontend Server B K/V StoreSearch FURY Backend

56. Webserver (Router) Webserver FURY Frontend Server A K/V StoreSearch FURY Backend Webserver FURY Frontend Server B K/V StoreSearch FURY Backend active = A

57. Webserver (Router) Webserver FURY Frontend Server A K/V StoreSearch FURY Backend Webserver FURY Frontend Server B K/V StoreSearch FURY Backend active = B

58. Webserver (Router) Webserver FURY Frontend Server A K/V StoreSearch FURY Backend active = B

59. RDBMS   Read Slave Webserver FURY Frontend Server A K/V StoreSearch FURY Backend Webserver (Router) Build Server Deploy Code active = B

60. RDBMS   Read Slave Webserver FURY Frontend Server A K/V StoreSearch FURY Backend Webserver (Router) Build Server Deploy Code Collect & Export active = B

61. Webserver FURY Frontend Server A K/V StoreSearch FURY Backend Webserver (Router) Build Server Deploy Code Collect & Export Smoke Tests active = B RDBMS   Read Slave

64. Webserver FURY Frontend Server A K/V StoreSearch FURY Backend Webserver (Router) Build Server Deploy Code Collect & Export Smoke Tests Switch to A active = Bactive = A RDBMS   Read Slave

65. Conclusion • Write tests • Get 100% coverage • SmokeTest your Website • Only activate server if it didn’t start smoking

66. https://www.facebook.com/kartenmacherei/ jobs@kartenmacherei.de http://inside.kartenmacherei.de/job.html https://tech.kartenmacherei.de @techdotkam Contact & Feedback Q&A

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