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Improving QA on PHP
projects
Michelangelo van Dam
ZendCon2010, Santa Clara, CA (USA)
Michelangelo van Dam
• Independent Consultant
• Zend Certified Engineer (ZCE)
• President of PHPBenelux
What’s the benefit of QA?
• early detection of issues
• cleaner & consistent code
• knowledge about the codebase
• increase of confidence
Sebastian Bergmann
• QA expert
• wrote the tools
• speaker and inspirer
Usual Suspects
PHP_CodeSniffer
Example Code
• Zend Framework QuickStart app
- http://framework.zend.com/manual/en/learning.quickstart.intro.html
<VirtualHost *:80>
DocumentRoot /srv/www/quickstart/public
ServerName quickstart.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
Showtime
Syntax Checking
• PHPLint
- comes with PHP binary
- validates code for syntax errors
• Website
- http://www.icosaedro.it/phplint/
Demo PHPLint
Code Documentation
• PHPDocumentator
- creates automated API documentation
- based on inline code blocks
• Installation
- pear install PhpDocumentor
• Website
- http://www.phpdoc.org
Demo PHPDoc
Output PHPDoc
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
Demo PHP_CodeSniffer
PHPCPD
• PHP Copy/Paste Detector
- 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
Demo PHPCPD
Output
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
Demo detecting mess
Output codesize
Output unused code
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
See other presentation
http://slideshare.net/DragonBe/unit-testing-after-zf-18
Packaging
• Phar
- PHP Archive (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
Code example
<?php
include_once ‘phar://MyApp.phar/path/to/Class.php’;
$application = new Class;
$application->run();
Usage
• libraries
• modules
• images
• plugins
• deployment
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
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>
project definition
<?xml version="1.0"?>
<project name="zfqs" description="Zend Framework QuickStart" default="build" >
…
</project>
target version
<target name="version">
<version releasetype="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)
target phplint
<target name="phplint">
<mkdir dir="./reports/phplint" />
<phplint file="./application/models"
haltonfailure="false" tofile="./reports/phplint/errors.txt"/>
</target>
target pdepend
<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 phpmd
<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 phpcs
<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 phpcpd
<target name="phpcpd">
<mkdir dir="./reports/phpcpd" />
<exec command="/usr/bin/phpcpd
--log-pmd ./reports/phpcpd/pmd-cpd.xml ./application/models"
dir="./" />
</target>
target phpdoc
<target name="phpdoc">
<mkdir dir="./reports/phpdoc" />
<exec command="phpdoc -d ./application/models -q
-t ./reports/phpdoc -o HTML:frames:earthli"
dir="./" />
</target>
target build
<target name="build"
depends="version,phplint,pdepend,phpmd,phpcs,phpcpd,phpdoc">
<echo msg="Finishing build process ${version.number}" />
</target>
Demo building all
Demo building target
Our reports section
Summary
PHP offers lots of tools
more consistent and clean code
automated process
• http://slideshare.net/DragonBe/improving-qa-on-php-
projects
• http://twitter.com/DragonBe
• http://facebook.com/DragonBe
• http://joind.in/2279
Questions
http://conference.phpbenelux.eu

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Improving qa on php projects

  • 1. Improving QA on PHP 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 benefit of QA? • early detection of issues • cleaner & consistent code • knowledge about the codebase • increase of confidence
  • 4. Sebastian Bergmann • QA expert • wrote the tools • speaker and inspirer
  • 6. Example Code • Zend Framework QuickStart app - http://framework.zend.com/manual/en/learning.quickstart.intro.html
  • 7. <VirtualHost *:80> DocumentRoot /srv/www/quickstart/public ServerName quickstart.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
  • 9. Syntax Checking • PHPLint - comes with PHP binary - validates code for syntax errors • Website - http://www.icosaedro.it/phplint/
  • 11. Code Documentation • PHPDocumentator - creates automated API documentation - based on inline code blocks • Installation - pear install PhpDocumentor • Website - http://www.phpdoc.org
  • 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
  • 16. PHPCPD • PHP Copy/Paste Detector - 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
  • 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
  • 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
  • 25. Packaging • Phar - PHP Archive (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
  • 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"?> <project name="zfqs" description="Zend Framework QuickStart" default="build" > … </project>
  • 31. target version <target name="version"> <version releasetype="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"> <mkdir dir="./reports/phplint" /> <phplint file="./application/models" haltonfailure="false" tofile="./reports/phplint/errors.txt"/> </target>
  • 33. target pdepend <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>
  • 34. target phpmd <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>
  • 35. target phpcs <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>
  • 36. target phpcpd <target name="phpcpd"> <mkdir dir="./reports/phpcpd" /> <exec command="/usr/bin/phpcpd --log-pmd ./reports/phpcpd/pmd-cpd.xml ./application/models" dir="./" /> </target>
  • 37. target phpdoc <target name="phpdoc"> <mkdir dir="./reports/phpdoc" /> <exec command="phpdoc -d ./application/models -q -t ./reports/phpdoc -o HTML:frames:earthli" dir="./" /> </target>
  • 42. Summary PHP offers lots of 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