4a802e39fc
No need to create own instance in this test Isolate the tests and setup/teardown handles all Change-Id: Ifd3684065fa8023a2dbd28391573f8744865ecfd
93 lines
2.7 KiB
PHP
93 lines
2.7 KiB
PHP
<?php
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namespace MediaWiki\Tests\Maintenance;
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use Maintenance;
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use MediaWikiIntegrationTestCase;
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use Wikimedia\TestingAccessWrapper;
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abstract class MaintenanceBaseTestCase extends MediaWikiIntegrationTestCase {
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/**
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* The main Maintenance instance that is used for testing, wrapped and mockable.
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*
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* @var Maintenance
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*/
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protected $maintenance;
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protected function setUp() : void {
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parent::setUp();
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$this->maintenance = $this->createMaintenance();
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}
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/**
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* Do a little stream cleanup to prevent output in case the child class
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* hasn't tested the capture buffer.
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*/
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protected function tearDown() : void {
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if ( $this->maintenance ) {
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$this->maintenance->cleanupChanneled();
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}
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// This is smelly, but maintenance scripts usually produce output, so
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// we anticipate and ignore with a regex that will catch everything.
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//
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// If you call $this->expectOutputRegex in your subclass, this guard
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// won't be triggered, and your specific pattern will be respected.
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if ( !$this->hasExpectationOnOutput() ) {
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$this->expectOutputRegex( '/.*/' );
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}
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parent::tearDown();
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}
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/**
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* Subclasses must implement this in order to use the $this->maintenance
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* variable. Normally, it will be set like:
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* return PopulateDatabaseMaintenance::class;
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*
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* If you need to change the way your maintenance class is constructed,
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* override createMaintenance.
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*
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* @return string Class name
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*/
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abstract protected function getMaintenanceClass();
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/**
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* Called by setUp to initialize $this->maintenance.
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*
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* @return Maintenance The Maintenance instance to test.
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*/
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protected function createMaintenance() {
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$className = $this->getMaintenanceClass();
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$obj = new $className();
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// We use TestingAccessWrapper in order to access protected internals
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// such as `output()`.
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return TestingAccessWrapper::newFromObject( $obj );
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}
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/**
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* Asserts the output before and after simulating shutdown
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*
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* This function simulates shutdown of self::maintenance.
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*
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* @param string $preShutdownOutput Expected output before simulating shutdown
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* @param bool $expectNLAppending Whether or not shutdown simulation is expected
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* to add a newline to the output. If false, $preShutdownOutput is the
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* expected output after shutdown simulation. Otherwise,
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* $preShutdownOutput with an appended newline is the expected output
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* after shutdown simulation.
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*/
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protected function assertOutputPrePostShutdown( $preShutdownOutput, $expectNLAppending ) {
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$this->assertEquals( $preShutdownOutput, $this->getActualOutput(),
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"Output before shutdown simulation" );
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$this->maintenance->cleanupChanneled();
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$postShutdownOutput = $preShutdownOutput . ( $expectNLAppending ? "\n" : "" );
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$this->expectOutputString( $postShutdownOutput );
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}
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}
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