c7197bee19
Currently the PNG and the LaTeXML rendering mode use a common table in the database. If both rendering modes are allowed in a wiki simultaneously this causes problems, because the fields are continuously overwritten. This is patch changes the logic of the rendering engine to use the specific database. The caching logic is now simpler to understand. A entry is written to the database if the changed field of the MathRenderer class is true. Is is triggered by the setters of the database relevant fields. Bug: 65522 Change-Id: Ief9de889b9292b21c9d1529a8b1797f38196edad
111 lines
3.4 KiB
PHP
111 lines
3.4 KiB
PHP
<?php
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/**
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* Test the database access and core functionality of MathRenderer.
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*
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* @group Math
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* @group Database (Used by needsDB)
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*/
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class MathLaTeXMLDatabaseTest extends MediaWikiTestCase {
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var $renderer;
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const SOME_TEX = "a+b";
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const SOME_HTML = "a<sub>b</sub>";
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const SOME_MATHML = "iℏ∂_tΨ=H^Ψ<mrow><\ci>";
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const SOME_LOG = "Sample Log Text.";
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const SOME_TIMESTAMP = 1272509157;
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const SOME_SVG = "<?xml </svg >>%%LIKE;'\" DROP TABLE math;";
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/**
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* Helper function to test protected/private Methods
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* @param $name
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* @return ReflectionMethod
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*/
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protected static function getMethod($name) {
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$class = new ReflectionClass('MathLaTeXML');
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$method = $class->getMethod($name);
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$method->setAccessible(true);
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return $method;
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}
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/**
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* creates a new database connection and a new math renderer
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* TODO: Check if there is a way to get database access without creating
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* the connection to the database explicitly
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* function addDBData() {
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* $this->tablesUsed[] = 'math';
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* }
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* was not sufficient.
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*/
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protected function setup() {
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parent::setUp();
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// TODO: figure out why this is necessary
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$this->db = wfGetDB( DB_MASTER );
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// Create a new instance of MathSource
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$this->renderer = new MathLaTeXML( self::SOME_TEX );
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self::setupTestDB( $this->db, "mathtest" );
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}
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/**
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* Checks the tex and hash functions
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* @covers MathRenderer::getInputHash()
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*/
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public function testInputHash() {
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$expectedhash = $this->db->encodeBlob( pack( "H32", md5( self::SOME_TEX ) ) );
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$this->assertEquals( $expectedhash, $this->renderer->getInputHash() );
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}
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/**
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* Helper function to set the current state of the sample renderer instance to the test values
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*/
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public function setValues() {
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// set some values
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$this->renderer->setTex( self::SOME_TEX );
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$this->renderer->setMathml( self::SOME_MATHML );
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}
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/**
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* @covers MathLaTeXML::getMathTableName
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*/
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public function testTableName() {
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$fnGetMathTableName = self::getMethod( 'getMathTableName' );
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$obj = new MathLaTeXML();
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$tableName = $fnGetMathTableName->invokeArgs( $obj, array() );
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$this->assertEquals( $tableName, "mathlatexml", "Wrong latexml table name" );
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}
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/**
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* Checks the creation of the math table without debugging enabled.
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* @covers MathHooks::onLoadExtensionSchemaUpdates
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*/
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public function testCreateTable() {
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$this->setMwGlobals( 'wgMathValidModes', array( MW_MATH_LATEXML ) );
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$this->db->dropTable( "mathlatexml", __METHOD__ );
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$dbu = DatabaseUpdater::newForDB( $this->db );
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$dbu->doUpdates( array( "extensions" ) );
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$this->expectOutputRegex( '/(.*)Creating mathlatexml table(.*)/' );
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$this->setValues();
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$this->renderer->writeToDatabase();
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$res = $this->db->select( "mathlatexml", "*" );
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$row = $res->fetchRow();
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$this->assertEquals( 12, sizeof( $row ) );
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}
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/**
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* Checks database access. Writes an entry and reads it back.
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* @depends testCreateTable
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* @covers MathRenderer::writeDatabaseEntry()
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* @covers MathRenderer::readDatabaseEntry()
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*/
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public function testDBBasics() {
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$this->setValues();
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$this->renderer->writeToDatabase();
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$renderer2 = $this->renderer = new MathLaTeXML( self::SOME_TEX );
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$renderer2->readFromDatabase();
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// comparing the class object does now work due to null values etc.
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$this->assertEquals( $this->renderer->getTex(), $renderer2->getTex(), "test if tex is the same" );
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$this->assertEquals( $this->renderer->getMathml(), $renderer2->getMathml(), "Check MathML encoding" );
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}
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}
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