SpecialPageTestBase.php

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<?php
 
abstract class SpecialPageTestBase extends MediaWikiTestCase {
 
    private $obLevel;
 
    protected function setUp() {
        parent::setUp();
 
        $this->obLevel = ob_get_level();
    }
 
    protected function tearDown() {
        $obLevel = ob_get_level();
 
        while ( ob_get_level() > $this->obLevel ) {
            ob_end_clean();
        }
 
        if ( $obLevel !== $this->obLevel ) {
            $this->fail(
                "Test changed output buffer level: was {$this->obLevel} before test, but $obLevel after test."
            );
        }
 
        parent::tearDown();
    }
 
    abstract protected function newSpecialPage();
 
    protected function executeSpecialPage(
        $subPage = '',
        WebRequest $request = null,
        $language = null,
        User $user = null
    ) {
        return ( new SpecialPageExecutor() )->executeSpecialPage(
            $this->newSpecialPage(),
            $subPage,
            $request,
            $language,
            $user
        );
    }
 
}