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Improving qa on php projects
The document discusses improving quality assurance on PHP projects through various tools. It introduces tools for syntax checking (PHPLint), documentation (PHPDocumentor), coding standards (PHP_CodeSniffer), duplication detection (PHPCPD), complexity/quality analysis (PDepend, PHPMD), testing (PHPUnit), packaging (Phar), and automation (Phing). Examples are provided of integrating these tools into a sample PHP project to continuously check code quality during development.
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Improving qa on php projects
- 1. Improving QA onPHP projects Michelangelo van Dam ZendCon2010, Santa Clara, CA (USA)
- 2. Michelangelo van Dam •Independent Consultant • Zend Certified Engineer (ZCE) • President of PHPBenelux
- 3. What’s the benefitof QA? • early detection of issues • cleaner & consistent code • knowledge about the codebase • increase of confidence
- 4. Sebastian Bergmann • QAexpert • wrote the tools • speaker and inspirer
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- 6. Example Code • ZendFramework QuickStart app - http://framework.zend.com/manual/en/learning.quickstart.intro.html
- 7. <VirtualHost *:80> DocumentRoot /srv/www/quickstart/public ServerNamequickstart.local ServerAdmin root@localhost <Directory /srv/www/quickstart/public> Options Indexes FollowSymlinks AllowOverride All Order allow,deny Allow from all DirectoryIndex index.php </Directory> Alias /reports /srv/www/quickstart/reports <Directory /srv/www/quickstart/reports> Options Indexes FollowSymlinks AllowOverride All Order allow,deny Allow from all DirectoryIndex index.php index.html </Directory> </VirtualHost> VirtualHost Settings
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- 9. Syntax Checking • PHPLint -comes with PHP binary - validates code for syntax errors • Website - http://www.icosaedro.it/phplint/
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- 11. Code Documentation • PHPDocumentator -creates automated API documentation - based on inline code blocks • Installation - pear install PhpDocumentor • Website - http://www.phpdoc.org
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- 14. Coding Standards • PHP_CodeSniffer -sniffs for coding standard violations - ensures code is clean and consistent - using standard and custom coding standards • Installation - pear install PHP_CodeSniffer • Website - http://pear.php.net/package/PHP_CodeSniffer
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- 16. PHPCPD • PHP Copy/PasteDetector - detects code duplication • Installation - pear channel-discover pear.phpunit.de - pear channel-discover components.ez.no - pear install --alldeps phpunit/phpcpd • Website - http://github.com/sebastianbergmann/phpcpd
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- 19. Mess Detection • PDepend& PHPMD - detects code mess • Installation - pear channel-discover pear.pdepend.org - pear install pdepend/PHP_Depend - pear channel-discover pear.phpmd.org - pear install phpmd/PHP_PMD • Websites - http://www.pdepend.org - http://www.phpmd.org
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- 23. Unit Testing • PHPUnit -tests code on unit level - includes database tests - integrates well with many PHP frameworks • Installation - pear channel-discover pear.phpunit.de - pear install phpunit/PHPUnit • Website - http://www.phpunit.de
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- 25. Packaging • Phar - PHPArchive (equivalent of Java jar) - compresses and collects like - included in PHP build (as of PHP 5.3.0) • Installation (before PHP 5.3.0) - pecl install phar • Website: - http://php.net/phar
- 26. Code example <?php include_once ‘phar://MyApp.phar/path/to/Class.php’; $application= new Class; $application->run();
- 27. Usage • libraries • modules •images • plugins • deployment
- 28. Automated builds • Phing -automated build tool - like Apache Ant - integrates well with other PHP tools • Installation - pear channel-discover pear.phing.info - pear install phing/phing • Website - http://phing.info
- 29. build.xml <?xml version="1.0"?> <project name="zfqs"description="Zend Framework QuickStart" default="build" > <target name="version"> <version releasetype="Bugfix" file="build.version" property="version.number"/> </target> <target name="phplint"> <mkdir dir="./reports/phplint" /> <phplint file="./application/models" haltonfailure="false" tofile="./reports/phplint/errors.txt"/> </target> <target name="pdepend"> <mkdir dir="./reports/pdepend" /> <copy file="./build_pdepend.html" tofile="./reports/pdepend/index.html" overwrite="true" /> <exec command="/usr/bin/pdepend --summary-xml=./reports/pdepend/summary.xml --jdepend-chart=./reports/pdepend/jdepend.svg --overview-pyramid=./reports/pdepend/pyramid.svg ./application/models" dir="./" /> </target> <target name="phpmd"> <mkdir dir="./reports/phpmd" /> <exec command="/usr/bin/phpmd ./application/models html codesize --reportfile ./reports/phpmd/codesize.html" dir="./" /> <exec command="/usr/bin/phpmd ./application/models html unusedcode --reportfile ./reports/phpmd/unusedcode.html" dir="./" /> </target> <target name="phpcs"> <mkdir dir="./reports/phpcs" /> <exec command="/usr/bin/phpcs -n --standard=Zend --report=summary ./application/models > ./reports/phpcs/summary.txt" dir="./" /> <exec command="/usr/bin/phpcs -n --standard=Zend --report=source ./application/models > ./reports/phpcs/source.txt" dir="./" /> <exec command="/usr/bin/phpcs -n --standard=Zend --report=checkstyle ./application/models > ./reports/phpcs/checkstyle.xml" dir="./" /> </target> <target name="phpcpd"> <mkdir dir="./reports/phpcpd" /> <exec command="/usr/bin/phpcpd --log-pmd ./reports/phpcpd/pmd-cpd.xml ./application/models" dir="./" /> </target> <target name="phpdoc"> <mkdir dir="./reports/phpdoc" /> <exec command="phpdoc -d ./application/models -q -t ./reports/phpdoc -o HTML:frames:earthli" dir="./" /> </target> <target name="build" depends="version,phplint,pdepend,phpmd,phpcs,phpcpd,phpdoc"> <echo msg="Finishing build process ${version.number}" /> </target> </project>
- 30. project definition <?xml version="1.0"?> <projectname="zfqs" description="Zend Framework QuickStart" default="build" > … </project>
- 31. target version <target name="version"> <versionreleasetype="Bugfix" file="build.version" property="version.number"/> </target> In file “build.version” we have the version number as the following sequence: MAJOR.MINOR.BUGFIX (starting at 0.0.0)
- 32. target phplint <target name="phplint"> <mkdirdir="./reports/phplint" /> <phplint file="./application/models" haltonfailure="false" tofile="./reports/phplint/errors.txt"/> </target>
- 33. target pdepend <target name="pdepend"> <mkdirdir="./reports/pdepend" /> <copy file="./build_pdepend.html" tofile="./reports/pdepend/index.html" overwrite="true" /> <exec command="/usr/bin/pdepend --summary-xml=./reports/pdepend/summary.xml --jdepend-chart=./reports/pdepend/jdepend.svg --overview-pyramid=./reports/pdepend/pyramid.svg ./application/models" dir="./" /> </target>
- 34. target phpmd <target name="phpmd"> <mkdirdir="./reports/phpmd" /> <exec command="/usr/bin/phpmd ./application/models html codesize --reportfile ./reports/phpmd/codesize.html" dir="./" /> <exec command="/usr/bin/phpmd ./application/models html unusedcode --reportfile ./reports/phpmd/unusedcode.html" dir="./" /> </target>
- 35. target phpcs <target name="phpcs"> <mkdirdir="./reports/phpcs" /> <exec command="/usr/bin/phpcs -n --standard=Zend --report=summary ./application/models > ./reports/phpcs/summary.txt" dir="./" /> <exec command="/usr/bin/phpcs -n --standard=Zend --report=source ./application/models > ./reports/phpcs/source.txt" dir="./" /> <exec command="/usr/bin/phpcs -n --standard=Zend --report=checkstyle ./application/models > ./reports/phpcs/checkstyle.xml" dir="./" /> </target>
- 36. target phpcpd <target name="phpcpd"> <mkdirdir="./reports/phpcpd" /> <exec command="/usr/bin/phpcpd --log-pmd ./reports/phpcpd/pmd-cpd.xml ./application/models" dir="./" /> </target>
- 37. target phpdoc <target name="phpdoc"> <mkdirdir="./reports/phpdoc" /> <exec command="phpdoc -d ./application/models -q -t ./reports/phpdoc -o HTML:frames:earthli" dir="./" /> </target>
- 38. target build <target name="build" depends="version,phplint,pdepend,phpmd,phpcs,phpcpd,phpdoc"> <echomsg="Finishing build process ${version.number}" /> </target>
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- 42. Summary PHP offers lotsof tools more consistent and clean code automated process
- 43. • http://slideshare.net/DragonBe/improving-qa-on-php- projects • http://twitter.com/DragonBe •http://facebook.com/DragonBe • http://joind.in/2279 Questions
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