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MathCacheTest.php
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MathCacheTest.php
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<?php
use MediaWiki\Extension\Math\MathMathML;
use MediaWiki\Extension\Math\MathRenderer;
/**
* Test the database access and core functionality of MathRenderer.
*
* @covers \MediaWiki\Extension\Math\MathRenderer
*
* @group Math
*
* @license GPL-2.0-or-later
*/
class MathCacheTest extends MediaWikiIntegrationTestCase {
/**
* @var MathRenderer
*/
private $renderer;
private const SOME_TEX = "a+b";
private const SOME_MATHML = "iℏ∂_tΨ=H^Ψ<mrow><\ci>";
protected function setUp(): void {
parent::setUp();
$this->renderer = new MathMathML( self::SOME_TEX );
}
/**
* Checks the tex and hash functions
* @covers \MediaWiki\Extension\Math\MathRenderer::getInputHash
*/
public function testInputHash() {
$this->assertEquals( 'beb7506b16f7c36aa0f9c8c9ef41b40b', $this->renderer->getInputHash() );
}
/**
* Helper function to set the current state of the sample renderer instance to the test values
*/
public function setValues() {
// set some values
$this->renderer->setTex( self::SOME_TEX );
$this->renderer->setMathml( self::SOME_MATHML );
}
/**
* Checks database access. Writes an entry and reads it back.
* @covers \MediaWiki\Extension\Math\MathRenderer::writeToCache
* @covers \MediaWiki\Extension\Math\MathRenderer::readFromCache
*/
public function testDBBasics() {
$this->setValues();
$this->renderer->writeToCache();
$renderer2 = new MathMathML( self::SOME_TEX, [ 'display' => '' ] );
$this->assertTrue( $renderer2->readFromCache(), 'Reading from database failed' );
// comparing the class object does now work due to null values etc.
$this->assertEquals(
$this->renderer->getTex(), $renderer2->getTex(), "test if tex is the same"
);
$this->assertEquals(
$this->renderer->getMathml(), $renderer2->getMathml(), "Check MathML encoding"
);
$this->assertEquals(
$this->renderer->getHtmlOutput(), $renderer2->getHtmlOutput(), 'test if HTML is the same'
);
}
/**
* This test checks if no additional write operation
* is performed, if the entry already existed in the database.
*/
public function testNoWrite() {
$this->setValues();
$inputHash = $this->renderer->getInputHash();
$this->assertTrue( $this->renderer->isChanged() );
$this->assertTrue( $this->renderer->writeCache(), "Write new entry" );
$this->assertTrue( $this->renderer->readFromCache(), "Read entry from database" );
$this->assertFalse( $this->renderer->isChanged() );
}
}

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Aug 15 2026, 22:53 (12 w, 2 d ago)
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MathCacheTest.php (2 KB)

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