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+<?php
+/**
+ * Sanity checks for making sure registered resources are sane.
+ *
+ * @file
+ * @author Antoine Musso
+ * @author Niklas Laxström
+ * @author Santhosh Thottingal
+ * @author Timo Tijhof
+ * @copyright © 2012, Antoine Musso
+ * @copyright © 2012, Niklas Laxström
+ * @copyright © 2012, Santhosh Thottingal
+ * @copyright © 2012, Timo Tijhof
+ *
+ * @license http://www.gnu.org/copyleft/gpl.html GNU General Public License 2.0 or later
+ */
+class ResourcesTest extends MediaWikiTestCase {
+
+ /**
+ * @dataProvider provideResourceFiles
+ */
+ public function testFileExistence( $filename, $module, $resource ) {
+ $this->assertFileExists( $filename,
+ "File '$resource' referenced by '$module' must exist."
+ );
+ }
+
+ /**
+ * @dataProvider provideMediaStylesheets
+ */
+ public function testStyleMedia( $moduleName, $media, $filename, $css ) {
+ $cssText = CSSMin::minify( $css->cssText );
+
+ $this->assertTrue(
+ strpos( $cssText, '@media' ) === false,
+ 'Stylesheets should not both specify "media" and contain @media'
+ );
+ }
+
+ /**
+ * Verify that nothing explicitly depends on the 'jquery' and 'mediawiki' modules.
+ * They are always loaded, depending on them is unsupported and leads to unexpected behaviour.
+ */
+ public function testIllegalDependencies() {
+ $data = self::getAllModules();
+ $illegalDeps = array( 'jquery', 'mediawiki' );
+
+ /** @var ResourceLoaderModule $module */
+ foreach ( $data['modules'] as $moduleName => $module ) {
+ foreach ( $illegalDeps as $illegalDep ) {
+ $this->assertNotContains(
+ $illegalDep,
+ $module->getDependencies(),
+ "Module '$moduleName' must not depend on '$illegalDep'"
+ );
+ }
+ }
+ }
+
+ /**
+ * Verify that all modules specified as dependencies of other modules actually exist.
+ */
+ public function testMissingDependencies() {
+ $data = self::getAllModules();
+ $validDeps = array_keys( $data['modules'] );
+
+ /** @var ResourceLoaderModule $module */
+ foreach ( $data['modules'] as $moduleName => $module ) {
+ foreach ( $module->getDependencies() as $dep ) {
+ $this->assertContains(
+ $dep,
+ $validDeps,
+ "The module '$dep' required by '$moduleName' must exist"
+ );
+ }
+ }
+ }
+
+ /**
+ * Verify that all dependencies of all modules are always satisfiable with the 'targets' defined
+ * for the involved modules.
+ *
+ * Example: A depends on B. A has targets: mobile, desktop. B has targets: desktop. Therefore the
+ * dependency is sometimes unsatisfiable: it's impossible to load module A on mobile.
+ */
+ public function testUnsatisfiableDependencies() {
+ $data = self::getAllModules();
+ $validDeps = array_keys( $data['modules'] );
+
+ /** @var ResourceLoaderModule $module */
+ foreach ( $data['modules'] as $moduleName => $module ) {
+ $moduleTargets = $module->getTargets();
+ foreach ( $module->getDependencies() as $dep ) {
+ $targets = $data['modules'][$dep]->getTargets();
+ foreach ( $moduleTargets as $moduleTarget ) {
+ $this->assertContains(
+ $moduleTarget,
+ $targets,
+ "The module '$moduleName' must not have target '$moduleTarget' "
+ . "because its dependency '$dep' does not have it"
+ );
+ }
+ }
+ }
+ }
+
+ /**
+ * Get all registered modules from ResouceLoader.
+ * @return array
+ */
+ protected static function getAllModules() {
+ global $wgEnableJavaScriptTest;
+
+ // Test existance of test suite files as well
+ // (can't use setUp or setMwGlobals because providers are static)
+ $org_wgEnableJavaScriptTest = $wgEnableJavaScriptTest;
+ $wgEnableJavaScriptTest = true;
+
+ // Initialize ResourceLoader
+ $rl = new ResourceLoader();
+
+ $modules = array();
+
+ foreach ( $rl->getModuleNames() as $moduleName ) {
+ $modules[$moduleName] = $rl->getModule( $moduleName );
+ }
+
+ // Restore settings
+ $wgEnableJavaScriptTest = $org_wgEnableJavaScriptTest;
+
+ return array(
+ 'modules' => $modules,
+ 'resourceloader' => $rl,
+ 'context' => new ResourceLoaderContext( $rl, new FauxRequest() )
+ );
+ }
+
+ /**
+ * Get all stylesheet files from modules that are an instance of
+ * ResourceLoaderFileModule (or one of its subclasses).
+ */
+ public static function provideMediaStylesheets() {
+ $data = self::getAllModules();
+ $cases = array();
+
+ foreach ( $data['modules'] as $moduleName => $module ) {
+ if ( !$module instanceof ResourceLoaderFileModule ) {
+ continue;
+ }
+
+ $reflectedModule = new ReflectionObject( $module );
+
+ $getStyleFiles = $reflectedModule->getMethod( 'getStyleFiles' );
+ $getStyleFiles->setAccessible( true );
+
+ $readStyleFile = $reflectedModule->getMethod( 'readStyleFile' );
+ $readStyleFile->setAccessible( true );
+
+ $styleFiles = $getStyleFiles->invoke( $module, $data['context'] );
+
+ $flip = $module->getFlip( $data['context'] );
+
+ foreach ( $styleFiles as $media => $files ) {
+ if ( $media && $media !== 'all' ) {
+ foreach ( $files as $file ) {
+ $cases[] = array(
+ $moduleName,
+ $media,
+ $file,
+ // XXX: Wrapped in an object to keep it out of PHPUnit output
+ (object)array( 'cssText' => $readStyleFile->invoke( $module, $file, $flip ) ),
+ );
+ }
+ }
+ }
+ }
+
+ return $cases;
+ }
+
+ /**
+ * Get all resource files from modules that are an instance of
+ * ResourceLoaderFileModule (or one of its subclasses).
+ *
+ * Since the raw data is stored in protected properties, we have to
+ * overrride this through ReflectionObject methods.
+ */
+ public static function provideResourceFiles() {
+ $data = self::getAllModules();
+ $cases = array();
+
+ // See also ResourceLoaderFileModule::__construct
+ $filePathProps = array(
+ // Lists of file paths
+ 'lists' => array(
+ 'scripts',
+ 'debugScripts',
+ 'loaderScripts',
+ 'styles',
+ ),
+
+ // Collated lists of file paths
+ 'nested-lists' => array(
+ 'languageScripts',
+ 'skinScripts',
+ 'skinStyles',
+ ),
+ );
+
+ foreach ( $data['modules'] as $moduleName => $module ) {
+ if ( !$module instanceof ResourceLoaderFileModule ) {
+ continue;
+ }
+
+ $reflectedModule = new ReflectionObject( $module );
+
+ $files = array();
+
+ foreach ( $filePathProps['lists'] as $propName ) {
+ $property = $reflectedModule->getProperty( $propName );
+ $property->setAccessible( true );
+ $list = $property->getValue( $module );
+ foreach ( $list as $key => $value ) {
+ // 'scripts' are numeral arrays.
+ // 'styles' can be numeral or associative.
+ // In case of associative the key is the file path
+ // and the value is the 'media' attribute.
+ if ( is_int( $key ) ) {
+ $files[] = $value;
+ } else {
+ $files[] = $key;
+ }
+ }
+ }
+
+ foreach ( $filePathProps['nested-lists'] as $propName ) {
+ $property = $reflectedModule->getProperty( $propName );
+ $property->setAccessible( true );
+ $lists = $property->getValue( $module );
+ foreach ( $lists as $list ) {
+ foreach ( $list as $key => $value ) {
+ // We need the same filter as for 'lists',
+ // due to 'skinStyles'.
+ if ( is_int( $key ) ) {
+ $files[] = $value;
+ } else {
+ $files[] = $key;
+ }
+ }
+ }
+ }
+
+ // Get method for resolving the paths to full paths
+ $method = $reflectedModule->getMethod( 'getLocalPath' );
+ $method->setAccessible( true );
+
+ // Populate cases
+ foreach ( $files as $file ) {
+ $cases[] = array(
+ $method->invoke( $module, $file ),
+ $moduleName,
+ ( $file instanceof ResourceLoaderFilePath ? $file->getPath() : $file ),
+ );
+ }
+ }
+
+ return $cases;
+ }
+}