PHP TestFest - Cologne

Welcome to TestFest! Cologne – May 2 nd 2008

Welcome to TestFest!
What is this about?
Event that aims at improving the code coverage of the PHP interpreter itself by writing tests.
The point is that people, such as a user group, network to learn together.
Great opportunity to contribute back to the PHP project.
If this is your first fest, you have to test!

PHPT Tests
Single test in a single .phpt file
Each test is run in a separate PHP process
Complete test isolation
PHP configuration can be changed per test
Test Suite survives fatal errors, segfaults, ...
Original implementation: run-tests.php
PEAR_RunTest
Used by PHPUnit_Extensions_PhptTestCase
PHPT (http://phpt.info/)

Writing PHPT Tests
Tests for bugs
bug<bugid>.phpt
Tests for a function's basic behaviour
<functionname>_basic.phpt
Tests for a function's error behaviour
<functionname>_error.phpt
Tests for variations in a function's behaviour
<functionname>_variation.phpt
General tests for extensions
<extname><no>.phpt
Naming Conventions

Writing PHPT Tests --TEST-- Hello World --FILE-- Hello World --EXPECT-- Hello World TEST , FILE , and EXPECT

Writing PHPT Tests --TEST-- Hello World --FILE-- <?php print 'Hello World' ; ?> --EXPECT-- Hello World TEST , FILE , and EXPECT

Writing PHPT Tests EXPECTF --TEST-- Hello World --FILE-- <?php print 'Hello World --EXPECTF-- Parse error: syntax error, unexpected $end in %s.php on line %d
%s any string
%d numbers
%c single character
%w whitespace
%i integers
%f floats
%x hexadecimal
%e directory sep.

Writing PHPT Tests EXPECTREGEX --TEST-- Hello World --FILE-- <?php print 'Hello World --EXPECTREGEX-- Parse error: (parse|syntax) error, unexpected $end in .* on .*

Writing PHPT Tests CLEAN --TEST-- This will remove temporary files --FILE-- <?php $temp_filename = dirname ( __FILE__ ) . '/foo.tmp' ; $fp = fopen ( $temp_filename , 'w' ); fwrite ( $fp , 'bar' ); fclose ( $fp ); ?> --CLEAN-- <?php $temp_filename = dirname ( __FILE__ ) . '/foo.tmp' ; unlink ( $temp_filename ); ?> --EXPECT--

Writing PHPT Tests Writing portable tests --TEST-- Test uses a hard-defined timezone --INI-- date.timezone=UTC --FILE-- --EXPECT--

Writing PHPT Tests Writing portable tests --TEST-- Check for 32bit platform --SKIPIF-- <?php if ( PHP_INT_SIZE != 4 ) die ( '32bit platforms only' ); ?> --FILE-- --EXPECT--

Writing PHPT Tests Writing portable tests --TEST-- Check for 64bit platform --SKIPIF-- <?php if ( PHP_INT_SIZE != 8 ) die ( '64bit platforms only' ); ?> --FILE-- --EXPECT--

Writing PHPT Tests Writing portable tests --TEST-- Check for Linux platform --SKIPIF-- <?php if (! stristr ( PHP_OS , 'Linux' )) die ( 'Linux only' ); ?> --FILE-- --EXPECT--

Writing PHPT Tests Writing portable tests --TEST-- Check for MacOS X platform --SKIPIF-- <?php if (! stristr ( PHP_OS , 'Darwin' )) die ( 'MacOS X only' ); ?> --FILE-- --EXPECT--

Writing PHPT Tests Writing portable tests --TEST-- Check for Windows platform --SKIPIF-- <?php if ( substr ( PHP_OS , 0 , 3 ) != 'WIN' ) die ( 'Windows only' ); ?> --FILE-- --EXPECT--

Writing PHPT Tests CREDITS --TEST-- A test with a CREDITS section --CREDITS-- Joe Testwriter <joe@foo.bar> #testfest cologne on 2008-05-02 --FILE-- --EXPECT--

Running PHP's Test Suite [email_address] php-5.3 % ./configure && make && make test . . . TEST RESULT SUMMARY --------------------------------------------------------------------- Exts skipped : 47 Exts tested : 34 --------------------------------------------------------------------- Number of tests : 6518 4786 Tests skipped : 1732 ( 26.6%) -------- Tests warned : 0 ( 0.0%) ( 0.0%) Tests failed : 13 ( 0.2%) ( 0.3%) Tests passed : 4773 ( 73.2%) ( 99.7%) --------------------------------------------------------------------- Time taken : 423 seconds [email_address] php-5.3 % ./configure --enable-gcov && make && make lcov . . . Overall coverage rate: 82665 of 148813 lines (55.5%)

Resources
TestFest http://qa.php.net/testfest.php
PHP Quality Assurance Team http://qa.php.net/
PHP: Test and Code Coverage Analysis http://gcov.php.net/

The End
Thank you for your interest!
These slides will be available shortly on http://sebastian-bergmann.de/talks/.

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PHP TestFest - Cologne

by Sebastian Bergmann on May 02, 2008

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PHP TestFest - Cologne — Presentation Transcript