Smoke tests - what why how - PHP Srbija
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These are the slides to Sebastian Thoss' session about Smoke Testing at PHP Serbia in Belgard on 26. May 2019
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Smoke tests - what why how - PHP Srbija
- 1. SmokeTests The what, why and how
- 2. Who am I? Sebastian Thoss Chapter Lead Backend Founder & MD
- 5. 01 02 03 04 05 Agenda Types of Tests SmokeTests What and Why How do SmokeTest work Recommended Server Architecture SmokeTests as a Service
- 9. Class 3 Class 2 Unit Tests Class 1 Class 4 Mock Mock
- 11. Test Pyramid INTEGRATION TESTS UNIT TESTS
- 12. Class 4Class 3 Integration Tests Class 1 Class 2 Mock Mock
- 13. Test Pyramid ACCEPTANCE TESTS INTEGRATION TESTS UNIT TESTS
- 14. Acceptance Tests Class 1 Class 2 Class 3 Class 4
- 15. Test Pyramid ACCEPTANCE TESTS INTEGRATION TESTS UNIT TESTS ?
- 17. What are SmokeTests? By Brandonrush: https://commons.wikimedia.org/wiki/File:Smoke_Testing,_726_Emma_Ave,_Springdale,_AR.jpg
- 18. 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
- 20. What are SmokeTests? 1. … be simple 2. … be fast 3. … test URLs and optional parameters too 4. … cover at least all URLs in google index 5. … be extended by every new URL 6. … never forget a URL 7. … use a (manual) maintained list of URLs SmokeTests should…
- 21. What are SmokeTests? 1. Status code 2. Time to first byte 3. If body is provided 4. Correct server What SmokeTests validate?
- 22. What are SmokeTests? SmokeTest Client HTTP 1.1/200 OK <html> <head> <title>Foo</title> <body> <div id="bar"><span>foobar</span></div> </body> </html> SmokeTests are NOT Acceptance Tests!
- 24. How do SmokeTests work? https://2019.phpsrbija.rs <html><body>…</body></html> TTFB: 65ms HTTP 1.1/200 OK SmokeTest Client CI Server Application to test Production Server
- 25. How do SmokeTests work? https://2019.phpsrbija.rs/foo <html><body>…</body></html> TTFB: 3ms HTTP 1.1/404 Not Found SmokeTest Client CI Server Production Server Application to test
- 26. class SmokeTest extends TestCase { /** * @dataProvider urlProvider */ public function testWebsiteUrl(Url $url) { $result = $this->sendGetRequest($url); $this->assertSame(200, $result->getStatusCode()); $this->assertNotEmpty($result->getBody()); $this->assertLessThanOrEqual(100, $result->getTimeToFirstByteInMilliseconds()); } public function urlProvider() { $urls = [‘http://www.kartenmacherei.de’, …]; $urlCollection = UrlCollection::fromStrings($urls); return $urlCollection->asDataProviderArray($urlCollection); } … Logic is in here
- 29. How do SmokeTests work? SmokeTest Client CI Server Application to test Production Server https://2019.phpsrbija.rs/news https://2019.phpsrbija.rs/talks https://2019.phpsrbija.rs
- 30. How do SmokeTests work? https://2019.phpsrbija.rs/news https://2019.phpsrbija.rs/talks https://2019.phpsrbija.rs TTFB: 34ms SmokeTest Client CI Server Application to test Production Server
- 31. How do SmokeTests work? https://2019.phpsrbija.rs/schedule https://2019.phpsrbija.rs/talks https://2019.phpsrbija.rs SmokeTest Client CI Server Application to test Production Server
- 32. How do SmokeTests work? TTFB: 65ms https://2019.phpsrbija.rs/schedule https://2019.phpsrbija.rs/talks https://2019.phpsrbija.rs SmokeTest Client CI Server Application to test Production Server
- 33. How do SmokeTests work? https://2019.phpsrbija.rs/speakers https://2019.phpsrbija.rs/schedule https://2019.phpsrbija.rs/talks SmokeTest Client CI Server Application to test Production Server
- 34. How do SmokeTests work? TTFB: 620ms https://2019.phpsrbija.rs/speakers https://2019.phpsrbija.rs/schedule https://2019.phpsrbija.rs/talks SmokeTest Client CI Server Application to test Production Server
- 36. How do SmokeTests work?
- 37. BUT BUT
- 38. There is a library for it DjThossi/smoke-testing-php
- 39. How do SmokeTests work? DataProvider Single Test Application HTTP Requests HTTP Responses PHPUnit Calls Result[ ] Result
- 40. class SmokeTest extends TestCase { /** * @dataProvider myDataProvider */ public function testExample(Result $result): void { ... } public function myDataProvider(): array { … } }
- 41. public function myDataProvider(): array { $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); }
- 42. public function myDataProvider(): array { $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); }
- 43. public function myDataProvider(): array { $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); }
- 44. class SmokeTest extends TestCase { use SmokeTestTrait; public function myDataProvider(): array { $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); } …
- 45. class SmokeTest extends TestCase { use SmokeTestTrait; /** * @dataProvider myDataProvider */ public function testExample(Result $result): void { … } …
- 46. class SmokeTest extends TestCase { use SmokeTestTrait; /** * @dataProvider myDataProvider */ public function testExample(Result $result): void { $this->assertSuccess($result); $this->assertTimeToFirstByte(new TimeToFirstByte(100), $result); $this->assertBodyNotEmpty($result); $this->assertHeaderExists( Header::fromPrimitives(‘App-Server', ‘Fury’), $result ); } …
- 47. class SmokeTest extends TestCase { use SmokeTestTrait; /** * @dataProvider myDataProvider */ public function testExample(Result $result): void { $this->assertSuccess($result); $this->assertTimeToFirstByte(new TimeToFirstByte(100), $result); $this->assertBodyNotEmpty($result); $this->assertHeaderExists( Header::fromPrimitives(‘App-Server', ‘Fury’), $result ); } …
- 48. class SmokeTest extends TestCase { use SmokeTestTrait; /** * @dataProvider myDataProvider */ public function testExample(Result $result): void { $this->assertSuccess($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); }
- 49. How do SmokeTests work?
- 51. Webserver (Router) Webserver Application Box A K/V Store DB Webserver Application Box B K/V Store DB
- 52. Webserver (Router) Webserver Application Box A K/V Store DB Webserver Application Box B K/V Store DB active = A
- 53. Webserver (Router) Webserver Application Box A K/V Store DB Webserver Application Box B K/V Store DB active = B
- 55. Webserver Application Box A K/V Store DB Build Server Deploy Code active = B Webserver (Router)
- 56. Webserver Application Box A K/V Store DB Webserver (Router) Build Server Deploy Code Configure active = B
- 57. Webserver Application Box A K/V Store DB Build Server Deploy Code Configure Smoke Tests active = B Webserver (Router)
- 58. Webserver Application Box A K/V Store DB Webserver (Router) Build Server Deploy Code Configure Smoke Tests active = B
- 59. Webserver Application Box A K/V Store DB Build Server Deploy Code Configure Smoke Tests Switch to A active = B Webserver (Router)
- 60. active = A Box A Build Server Deploy Code Configure Smoke Tests Switch to A Webserver Application K/V Store DB Webserver (Router)
- 61. Webserver Application Box A K/V Store DB Webserver (Router) Build Server Deploy Code Configure Smoke Tests active = B
- 64. Smest.it
- 65. Smest.it
- 66. Smest.it
- 67. Smest.it
- 68. Smest.it
- 69. Smest.it