b and so on"; private const SOME_MATHML = "iℏ∂_tΨ=H^Ψ<\ci>"; private const SOME_CONSERVATIVENESS = 2; private const SOME_OUTPUTHASH = 'C65c884f742c8591808a121a828bc09f8<'; /** * creates a new database connection and a new math renderer * TODO: Check if there is a way to get database access without creating * the connection to the database explicitly * function addDBData() { * $this->tablesUsed[] = 'math'; * } * was not sufficient. */ protected function setUp(): void { parent::setUp(); // TODO: figure out why this is necessary $this->db = wfGetDB( DB_PRIMARY ); $this->renderer = new MathMathML( self::SOME_TEX ); $this->tablesUsed[] = 'mathoid'; } /** * Checks the tex and hash functions * @covers \MediaWiki\Extension\Math\MathRenderer::getInputHash */ public function testInputHash() { $expectedhash = $this->db->encodeBlob( pack( "H32", md5( self::SOME_TEX ) ) ); $this->assertEquals( $expectedhash, $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::writeToDatabase * @covers \MediaWiki\Extension\Math\MathRenderer::readFromDatabase */ public function testDBBasics() { $this->setValues(); $this->renderer->writeToDatabase( $this->db ); $renderer2 = new MathMathML( self::SOME_TEX ); $this->assertTrue( $renderer2->readFromDatabase(), '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' ); } /** * Checks the creation of the math table. * @covers \MediaWiki\Extension\Math\Hooks::onLoadExtensionSchemaUpdates */ public function testCreateTable() { $this->setMwGlobals( 'wgMathValidModes', [ MathConfig::MODE_MATHML ] ); $this->db->dropTable( "mathoid", __METHOD__ ); $dbu = DatabaseUpdater::newForDB( $this->db ); $dbu->doUpdates( [ "extensions" ] ); $this->expectOutputRegex( '/(.*)Creating mathoid table(.*)/' ); $this->setValues(); $this->renderer->writeToDatabase(); $res = $this->db->select( "mathoid", "*" ); $row = $res->fetchRow(); $this->assertCount( 16, $row ); } /** * 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" ); $res = $this->db->selectField( "mathoid", "math_inputhash", [ "math_inputhash" => $inputHash ] ); $this->assertTrue( $res !== false, "Check database entry" ); $this->assertTrue( $this->renderer->readFromDatabase(), "Read entry from database" ); $this->assertFalse( $this->renderer->isChanged() ); // modify the database entry manually $this->db->delete( "mathoid", [ "math_inputhash" => $inputHash ] ); // the renderer should not be aware of the modification and should not recreate the entry $this->assertFalse( $this->renderer->writeCache() ); // as a result no entry can be found in the database. $this->assertFalse( $this->renderer->readFromDatabase() ); } }