CODEWITHSUNDEEP
phpzend-frameworkjenkinsphpunithudson
webjawns.com
webjawns.com

Reputation: 2300

PHPUnit code coverage generation causing memory exhaustion

I'm currently using Zend Framework in conjunction with PHPUnit to conduct unit testing on an application. When Hudson executes the PHPUnit shell command, the maximum PHP memory limit is reached sometime during code coverage generation. I currently have a total of 41 tests with 334 assertions.

I have successfully eliminated this error by raising the memory_limit setting to 768M using the -d memory_limit=768M switch; however, I am worried that as the complexity increases along with the total number of tests/assertions, I will not have enough memory to generate the HTML for code coverage statistics.

OS: CentOS 5.5
Control Panel: WHM/cPanel
CI Server: Hudson

/usr/local/bin/phpunit 
  --verbose  
  -d memory_limit=512M  
  --log-junit ../../build/logs/phpunit.xml   
  --coverage-clover ../../build/logs/coverage/clover.xml   
  --coverage-html ../../build/logs/coverage-html/

Fatal error: Allowed memory size of 536870912 bytes exhausted

Before committing my changes and letting Hudson handle the rest, I use Windows 7 for development. The memory usage never exceeded 340MB while running the same command within W7.

Upvotes: 16

Views: 14645

Answers (4)

Marko Ivančić
Marko Ivančić

Reputation: 315

I had an OOM problem while using any code coverage format in PHPUnit v10 and have solved it by setting the 'processIsolation' option to true. Maybe this helps someone too.

Upvotes: 0

Maxime Rainville
Maxime Rainville

Reputation: 2049

As of 2019, you can use the PCOV driver with PHPUnit to generate your code coverage report. In my experience, it's only marginally less performant than running a plain PHPUnit suite.

Read Speed up PHPUnit Code Coverage Analysis for some good benchmark comparing XDebug, PHPDebug and PCOV. It also has instructions on how to enable PCOV on PHPUnit 8.

Read Setup PHP PCOV for 5 times faster PHPUnit code coverage for instructions on setting up PCOV on PHPUnit7 and below.

Upvotes: 1

webjawns.com
webjawns.com

Reputation: 2300

By reducing the number of files included within code coverage, as well as increasing the overall memory limit in PHP, I was able to basically kill this error. The entire Zend Framework was being included within code coverage, which is very large.

Upvotes: 15

Kayla Rose
Kayla Rose

Reputation: 1313

Do you have xdebug profiling enabled, if so try disabling it. I've experienced this problem before, and it came down to extensions in php (specifically xdebug profiling and/or Inclued heirarchy viewer)

Upvotes: 2

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