phpunit-memprof-listener

Test Listener for PHPUnit that uses the memprof extension to dump memory profile information.

Installation

You can add this library as a local, per-project, development-time dependency to your project using Composer:

composer require --dev phpunit/phpunit-memprof-listener

Usage

The example below shows how you activate and configure this test listener in your PHPUnit XML configuration file:

<?xml version="1.0" encoding="UTF-8"?>
<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/6.5/phpunit.xsd"
         bootstrap="vendor/autoload.php"
         forceCoversAnnotation="true"
         beStrictAboutCoversAnnotation="true"
         beStrictAboutOutputDuringTests="true"
         beStrictAboutTodoAnnotatedTests="true"
         verbose="true">
    <testsuite>
        <directory suffix="Test.php">tests</directory>
    </testsuite>

    <filter>
        <whitelist processUncoveredFilesFromWhitelist="true">
            <directory suffix=".php">src</directory>
        </whitelist>
    </filter>

    <listeners>
        <listener class="PHPUnit\MemoryProfiler\TestListener">
            <arguments>
                <string>/tmp</string>
                <string>callgrind</string>
            </arguments>
        </listener>
    </listeners>
</phpunit>

The following elements are relevant to this test listener and its configuration:

• <listeners> is the configuration section for test listeners
• <listener> configures (an instance of) the PHPUnit\MemoryProfiler\TestListener class as a test listener
• <arguments> is the configuration for that test listener
• The first argument is the path to the directory where the memory profile information is to be dumped, in this example /tmp
• The second argument is the desired format for the memory profile information dump, in this example callgrind (valid values are callgrind and pprof)

The rest of the phpunit.xml example shown above are best practice configuration defaults that were generated using phpunit --generate-configuration.