international PHP2011_Bastian Feder_The most unknown Parts of PHPUnit
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international PHP2011_Bastian Feder_The most unknown Parts of PHPUnit Presentation Transcript

  • 1. The most unknown parts ofPHPUnitBastian Feder IPC Spring 2011 Berlinllapistano@php.net 1st June 2011
  • 2. Me, myself & I JavaScript since 2002 PHP since 2001 Trainer & coach Opensource addict PHP manual translations FluentDOM ...
  • 3. CLI
  • 4. … on the command line -- testdox[-(html|text)] -- filter <pattern> generates a especially styled filters which testsuite to run. test report. $ phpunit --filter Handler --testdox ./ PHPUnit 3.4.15 by Sebastian Bergmann. FluentDOMCore [x] Get handler FluentDOMHandler [x] Insert nodes after [x] Insert nodes before
  • 5. … on the command line (cont.) -- strict marks test without an assertion as incomplete. Use in combination with –verbose to get the name of the test. -- coverage-(html|source|clover) <(dir|file)> generates a report on how many lines of the code has how often been executed. -- group <groupname [, groupname]> runs only the named group(s). -- d key[=value] alter ini-settings (e.g. memory_limit, max_execution_time)
  • 6. Annotations
  • 7. Annotations „In software programming, annotations are used mainly for the purpose of expanding code documentation and comments. They are typically ignored when the code is compiled or executed.“ ( Wikipedia: http://en.wikipedia.org/w/index.php?title=Annotation&oldid=385076084 )
  • 8. Annotations (cont.)/** @covers, @group * @covers myClass::run * @group exceptions * @group Trac-123 */public function testInvalidArgumentException() { $obj = new myClass(); try{ $obj->run( invalidArgument ); $this->fail(Expected exception not thrown.); } catch ( InvalidArgumentException $e ) { }}
  • 9. Annotations (cont.) Depending on other testspublic function testIsApcAvailable() { if ( ! extension_loaded( apc ) ) { $this->markTestSkipped( Required APC not available ); }}/** * @depend testIsApcAvailable */public function testGetFileFromAPC () {}
  • 10. Assertions
  • 11. Assertions „In computer programming, an assertion is a predicate (for example a true–false statement) placed in a program to indicate that the developer thinks that the predicate is always true at that place. [...] It may be used to verify that an assumption made by the programmer during the implementation of the program remains valid when the program is executed.. [...]“ (Wikipedia, http://en.wikipedia.org/w/index.php?title=Assertion_(computing)&oldid=382473744)
  • 12. Assertions (cont.) assertContains(), assertContainsOnly() Cameleon within the asserts, handles Strings ( like strpos() ) Arrays ( like in_array() )$this->assertContains(bar, foobar); // ✓$this->assertContainsOnly(string, array(1, 2, 3)); // ✗
  • 13. Assertions (cont.) assertXMLFileEqualsXMLFile() assertXMLStringEqualsXMLFile() assertXMLStringEqualsXMLString() $this->assertXMLFileEqualsXMLFile( /path/to/Expected.xml, /path/to/Fixture.xml );
  • 14. Assertions (cont.) $ phpunit XmlFileEqualsXmlFileTest.php PHPUnit 3.4.15 by Sebastian Bergmann. … 1) XmlFileEqualsXmlFileTest::testFailure Failed asserting that two strings are equal. --- Expected +++ Actual @@ -1,4 +1,4 @@ <?xml version="1.0"?> <foo> - <bar/> + <baz/> </foo> /dev/tests/XmlFileEqualsXmlFileTest.php:7
  • 15. Assertions (cont.) assertAttribute*() Asserts the content of a class attribute regardless its visibility […] private $collection = array( 1, 2, 3 ); private $name = Jakob; […] $this->assertAttributeContainsOnly( integer, collection, new myClass ); $this->assertAttributeContains( ko, name, new myClass );
  • 16. Assertions (cont.) assertType() // TYPE_OBJECT $this->assertType( FluentDOM, new FluentDOM ); $this->assertInstanceOf( FluentDOM, new FluentDOM ); // TYPE_STRING $this->assertInternalType( string, 4221 ); // TYPE_INTEGER $this->assertInternalType( integer, 4221 ); // TYPE_RESSOURCE $this->assertInternalType( resource, fopen(/file.txt, r );
  • 17. Assertions (cont.) assertSelectRegExp() $xml = <items version="1.0"> <persons> <person class="firstname">Thomas</person> <person class="firstname">Jakob</person> <person class="firstname">Bastian</person> </persons> </items> ; $this->assertSelectRegExp( person[class*="name"],(Jakob|Bastian), 2, $xml);
  • 18. Assertions (cont.) assertThat() Evaluates constraints to build complex assertions. $this->assertThat( $expected, $ths->logicalAnd( $this->isInstanceOf(tire), $this->logicalNot( $this->identicalTo($myFrontTire) ) ) );
  • 19. Weaving in
  • 20. Test Listeners Get called on several states of the test runner startTest endTest addIncompleteTest …
  • 21. Test Listeners (cont.) Configuration Add to your phpunit.xml <listeners> <listener class="myListener" file="PATH/TO/YOUR/CODE"> <arguments> <string>build/log</string> </arguments> </listener> </listeners>
  • 22. Test Listeners (cont.) Implementation exampleclass ListenerLog implements PHPUnit_Framework_TestListener{ public function __construct($path) { $this->path = $path; } public function startTestSuite(PHPUnit_Framework_TestSuite $suite) { $this->log("Test suite %s precesed.n", $test->getName()); }}
  • 23. Specialities
  • 24. Special tests Testing exceptions @expectedException /** * @expectedException InvalidArgumentException */ public function testInvalidArgumentException() { $obj = new myClass(); $obj->run(invalidArgument); }
  • 25. Special tests (cont.) Testing exceptions setExpectedException( Exception ) for internal use only!! dont use it directly any more.
  • 26. Special tests (cont.) Testing exceptions try/catch Does not work when using --strict switchpublic function testInvalidArgumentException() { $obj = new myClass(); try{ $obj->run( invalidArgument ); $this->fail(Expected exception not thrown.); } catch ( InvalidArgumentException $e ) { }}
  • 27. Special tests (cont.) public function callbackGetObject($name, $className = ) { retrun strtolower($name) == Jakob; } […] $application = $this->getMock(FluentDOM); $application ->expects($this->any()) ->method(getObject) ->will( $this->returnCallback( array($this, callbackGetObject) ) ); […]
  • 28. Special tests (cont.)[…]$application = $this->getMock(FluentDOM);$application ->expects($this->any()) ->method(getObject) ->will( $this->onConsecutiveCalls( array($this, callbackGetObject, $this->returnValue(true), $this->returnValue(false), $this->equalTo($expected) ) );[…]
  • 29. Special tests (cont.) implicit integration testspublic function testGet() { $mock = $this->getMock( myAbstraction ); $mock ->expected( $this->once() ) ->method( method ) ->will( $this->returnValue( return );}
  • 30. Questions@lapistanolapistano@php.net
  • 31. Slidesn contact Please comment the talk on joind.in http://joind.in/3518 Slides http://slideshare.net/lapistano Email: lapistano@php.net
  • 32. PHP5.3 Powerworkshop New features of PHP5.3 Best Pratices using OOP PHPUnit PHPDocumentor
  • 33. License  This set of slides and the source code included in the download package is licensed under theCreative Commons Attribution-Noncommercial-Share Alike 2.0 Generic License http://creativecommons.org/licenses/by-nc-sa/2.0/deed.en