https://github.com/automattic/cheeztest

Adding some LOLs to your server-side WordPress A/B testing. Plays nice with Batcache.
https://github.com/automattic/cheeztest

wordpress wordpress-plugin wpvip-plugin

Last synced: 3 months ago
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Adding some LOLs to your server-side WordPress A/B testing. Plays nice with Batcache.

• Host: GitHub
• URL: https://github.com/automattic/cheeztest
• Owner: Automattic
• License: mit
• Created: 2012-02-09T15:31:02.000Z (almost 13 years ago)
• Default Branch: master
• Last Pushed: 2023-01-16T23:18:58.000Z (almost 2 years ago)
• Last Synced: 2024-10-07T11:16:55.212Z (3 months ago)
• Topics: wordpress, wordpress-plugin, wpvip-plugin
• Language: PHP
• Homepage:
• Size: 40 KB
• Stars: 28
• Watchers: 123
• Forks: 8
• Open Issues: 1
• Metadata Files:
  • Readme: readme.txt
  • License: LICENSE.txt

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README

        
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CheezTest lets you create and run Batcache-compatible server-side A/B tests in your theme.

A joint LOL by the fine folks I Can Has Cheezburger (http://www.cheezburger.com) and Automattic (http://automattic.com)

Main class from which all A/B tests are inherited. Enables fast setup

of A/B tests - upon initialization, the basic order of execution is:

set test name > check if user is qualified to participate > check

if user has been assigned a segment, and assign if not > assign user

to group > execute 'action' callback if present.

User's qualification, segment, and group tests are done in batcache

so as to ensure correct cache variants are served.

User's segment is assigned server-side via magic. Mutliple test

segments are assigned at once - so if a user is qualified to participate

in more than one test, all segments are assigned at the same time. When

segments need to be set, a small javascript is injected into the 

via a call to CheezTest::write_segment_cookie(). This javascript

sets a cookie to retain the segment assigned earlier.

Test case data (name, is_qualified, & group) are stored in the $active_tests

static hash and made accessible via the 'is_qualified_for', 'get_group_for', and

'is_in_group' static methods. This enables theme branching via:

if ( CheezTest::is_qualified_for( 'my-example-test' ) {

    //test-specific stuff goes here

}

- or -

if ( CheezTest::is_in_group( 'my-example-test', 'my-example-group' ) ) {

   //group-specific stuff goes here

}

The plugin makes use of Batcache’s support for vary_cache_on_function, which saves page variants in a page’s cache and then evaluates which one to serve when the page loads.

IMPORTANT: Since the tests run before Batcache, which in turn runs very early (before theme code is included), only built-in PHP functions and jetpack_is_mobile() can be used when defining tests. Any theme-specific functions will not be available.