Extension:MWUnit

MediaWiki extensions manual

File:OOjs UI icon advanced-invert.svg MWUnit Release status: stable
File:MWUnit Logo.png
Implementation	Special page , Parser function , API , ContentHandler
Description	A unit testing framework for MediaWiki
Author(s)	Marijn van Wezel (Xxmarijnwtalk)
Latest version	2.0.1 (2021-12-04)
Compatibility policy	Master maintains backward compatibility.
MediaWiki	1.31+
PHP	7.0+
Database changes	Yes
Tables	mwunit_tests mwunit_setup mwunit_teardown mwunit_content mwunit_attributes
License	MIT License
Download	GitHub: <translate> project page</translate> <translate> git repository URL</translate> [<translate> help</translate> ] <translate> commit history</translate> <translate> Note:</translate> <translate> No [[<tvar name=1>Special:MyLanguage/Localisation#Translation resources</tvar>|localisation]] updates are provided by <tvar name=twn>translatewiki.net </tvar>.</translate>
Expand Namespace NS_TEST (NS_TEST_TALK)
Expand Parameters $wgMWUnitMaxTestExecutionTime $wgMWUnitDefaultTestDox $wgMWUnitBackupGlobals $wgMWUnitStrictCoverage $wgMWUnitForceCoversAnnotation $wgMWUnitAllowRunningTestAsOtherUser $wgMWUnitShowProfilingInfo $wgMWUnitAllowTransclusion $wgMWUnitMaxTestCases $wgMWUnitMaxReportedErrors
Expand Added rights mwunit-runtests mwunit-mock-user mwunit-createtests
Expand Hooks used ParserFirstCallInit LoadExtensionSchemaUpdates PageContentSaveComplete ContentHandlerDefaultModelFor SkinBuildSidebar ArticleDeleteComplete ParserFetchTemplate UnitTestsList BeforePageDisplay MovePageIsValidMove
Expand Hooks provided MWUnitAfterInitializeTestRun MWUnitBeforeFirstTest MWUnitAfterTests MWUnitBeforeRunTestCase MWUnitBeforeInitializeBaseTestRunner MWUnitAfterTestComplete MWUnitRestore MWUnitShouldSkipTest MWUnitShouldMarkRisky MWUnitAfterInitializeTestRun MWUnitGetReservedFunctions MWUnitGetAssertionClasses
Quarterly downloads
Public wikis using

The MWUnit extension provides a unit testing framework for templates, parser functions and other wikitext.

It allows people that write technical templates to programmatically test those templates and changes to those templates. It ensures that a template, or section of a template, meets its design requirements and behaves exactly as intended.

MWUnit is an instance of the xUnit unit testing framework architecture.

The extension defines a number of assertions. These assertions are in the form of parser functions and test whether the given value conforms to the assertion. The most import assertions are:

• #assert_equals - tests whether the given strings are equal
• #assert_empty - tests whether the given string is empty
• #assert_that - tests whether the given string is true (a string is considered true, if and only if it is "true", "yes", "on" or "1")

The complete list of available assertions can be found here.

Click through the pages in the navigation bar at the top of this page to learn about MWUnit.

Example

Below is a basic example of a full test suite (Test:Foobar). This example uses the Variables extension to show how fixtures and global state work.

<!-- Define a fixture -->
<setup>
    <!-- Define some variables -->
    {{#vardefine: bar | boofar }}
    {{#vardefine: baz | {{Example}} }}
</setup>

<!-- Define a test case -->
<testcase name="testFoobar" group="Foobar tests" context="canonical">
    <!-- Assert that the variable "bar" is equal to the string "boofar" -->
    {{#assert_equals: {{#var: bar }} | boofar }}

    <!-- Assert the variable "baz" is numeric -->
    {{#assert_is_numeric: {{#var: baz }} }}
</testcase>

<testcase name="testRisky" group="Foobar tests" context="user">
    <!-- This test would be marked as "Risky", because it contains no assertions -->
</testcase>

See also

• Extension:MWUnit/Getting started - Getting started with MWUnit
• Manual:Unit testing - Manual about unit testing on MediaWiki