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Test your code like a pro - PHPUnit in practice
The document is a comprehensive guide on using PHPUnit for testing PHP applications, detailing exercises on unit testing, setting up the environment, and various assertions. It includes practical examples and exercises for writing test cases, handling exceptions, and generating code coverage reports. Additionally, it outlines specific techniques and commands for utilizing PHPUnit effectively.
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Test your code like a pro - PHPUnit in practice
- 1. Test your codelike a pro PHPUnit in practice Sebastian Marek, Software Architect
- 2. Me a Pole livingin Sheffield over 12 years in development big fan of process automation TDD and CI occasionally contributes to open source software
- 3. You? Who are you? What’syou typical environment you work in? What’s your experience in unit testing? What are your expectations?
- 4. Agenda Preparations / Setup Asserting exceptions Simple test case Asserting PHP Fixing first failure errors PHPUnit CLI options Asserting output Assertions Using data providers phpunit.xml file Generating code coverage report
- 5. Resources WIFI: phpnw12-phpunit hosts file:192.168.254.55 phpnw12-tutorial http://phpnw12-tutorial
- 6. Rescue plan $ gitclone http://phpnw12-tutorial/phpnw12-tutorial.git $ cd phpnw12-tutorial $ git reset --hard $ git pull origin exercise-<number>
- 7. Exercise 1 Simple test case repository structure src & tests naming conventions Tutorial.php and TutorialTest.php extends PHPUnit_Framework_TestCase
- 8. Exercise 1 -Simpletest case Test first! namespace PhpNw12TestsWorkshop class TutorialTest method testGreetingsReturnWelcomeMessage() $ phpunit tests/Workshop/TutorialTest.php
- 9. Exercise 1 -Simpletest case Code later! namespace PhpNw12Workshop class Tutorial method greetings() - empty for now $ phpunit tests/Workshop/TutorialTest.php
- 10. Exercise 1 -Simpletest case Fix the code! method greetings() - implement the functionality $ phpunit tests/Workshop/TutorialTest.php
- 11. Exercise 1 -Simpletest case Another test @test annotation method GetAttendeesReturnsListOfNames() assertInternalType() $ phpunit tests/Workshop/TutorialTest.php
- 12. Exercise 1 -Simpletest case Implementation method getAttendees() - return empty array $ phpunit tests/Workshop/TutorialTest.php
- 13. Exercise 2 -Fixing the failure Refactoring add $_attendees property method getAttendees() return $_attendees $ phpunit tests/Workshop/TutorialTest.php
- 14. Exercise 2 -Fixing the failure Refactoring continues initialize $_attendees in the constructor $ phpunit tests/Workshop/TutorialTest.php
- 15. Exercise 2 -Fixing the failure Fix broken code assign default value in the constructor $ phpunit tests/Workshop/TutorialTest.php
- 16. Exercise 3 PHPUnit CLIoptions --colors --testdox --debug --filter
- 17. Exercise 4 -More assertions Testing booleans - part 1 new test testTutorialHasNoPlacesLeftWhenMoreThen3Attendees() assertFalse() new method arePlacesLeft() $ phpunit tests/Workshop/TutorialTest.php
- 18. Exercise 4 -More assertions Testing booleans - part 2 new test testTutorialHasPlacesLeftWhenLessThen3Attendees() assertTrue() $ phpunit tests/Workshop/TutorialTest.php
- 19. Exercise 4 -More assertions Testing numbers new test testTutorialIsNotFullWhenItNotExceedsMaximumCapacity() assertGreaterThan(), assertLessThan(), assertNotNull() $ phpunit tests/Workshop/TutorialTest.php
- 20. Exercise 4 -More assertions Refactor to add functionality new const MAX_CAPACITY new method getNumberOfAttendees() refactor arePlacesLeft() to use the above $ phpunit tests/Workshop/TutorialTest.php
- 21. Exercise 4 -More assertions Testing variable types new test testRoomIsAvailable() assertInstanceOf() new class Room new property $_room initialized in the constructor $ phpunit tests/Workshop/TutorialTest.php
- 22. Exercise 4 -More assertions Testing arrays new test testAttendeeGotAddedToTheList() assertContains() new test testGetAtendeesReturnCorrectNumberOfAttendees() assertCount() $ phpunit tests/Workshop/TutorialTest.php
- 23. Exercise 5 -phpunit.xml phpunit.xml.dist vs phpunit.xml
- 24. Exercise 6 Asserting exceptions new test testAddAttendeeThrowsExceptionWhenAddingNewPersonToFullTutorial() setExpectedException() new method addAttendee() $ phpunit
- 25. Exercise 6 Asserting exceptions Refactor to add functionality refactor arePlacesLeft() refactor method addAttendee() $ phpunit
- 26. Exercise 6 Asserting exceptions Using annotations @expectedException @expectedExceptionMessage @expectedExceptionCode $ phpunit
- 27. Exercise 6 Asserting exceptions Using try...catch catching exceptions using conventional methods fail() $ phpunit
- 28. Exercise 7 Asserting errors Testing PHP errors new test testInitiatingTutorialWithWrongParamThrowsError() PHP errors converted to PHPUnit_Framework_Error $ phpunit
- 29. Exercise 7 Asserting errors Testing PHP warnings/notices new method Room::includeDependencies() new test testIncludeDependenciesThrowsWarningForMissingFiles() PHP warnings converted to PHPUnit_Framework_Error_Warning PHP notices converted to PHPUnit_Framework_Error_Notice $ phpunit
- 30. Exercise 8 Asserting output new test testDisplayShowsGreetingsMessage() new method displaySummary() expectOutputString() $ phpunit
- 31. Exercise 9 Data providers new provider provideListOfAttendeesNotExceedingMaximumTutorialCapacity() modify test testTutorialIsNotFullWhenItExceedsMaximumCapacity() @dataProvider $ phpunit
- 32. Exercise 10 Code coverage --coverage-html forceCoversAnnotation @covers $ phpunit --coverage-html=/tmp/phpnw12-tutorial
- 33.