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[autoinstallsdev/mediawiki.git] / tests / phpunit / structure / ApiStructureTest.php
diff --git a/tests/phpunit/structure/ApiStructureTest.php b/tests/phpunit/structure/ApiStructureTest.php
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+<?php
+
+use Wikimedia\TestingAccessWrapper;
+
+/**
+ * Checks that all API modules, core and extensions, conform to the conventions:
+ * - have documentation i18n messages (the test won't catch everything since
+ *   i18n messages can vary based on the wiki configuration, but it should
+ *   catch many cases for forgotten i18n)
+ * - do not have inconsistencies in the parameter definitions
+ *
+ * @group API
+ */
+class ApiStructureTest extends MediaWikiTestCase {
+
+       /** @var ApiMain */
+       private static $main;
+
+       /** @var array Sets of globals to test. Each array element is input to HashConfig */
+       private static $testGlobals = [
+               [
+                       'MiserMode' => false,
+                       'AllowCategorizedRecentChanges' => false,
+               ],
+               [
+                       'MiserMode' => true,
+                       'AllowCategorizedRecentChanges' => true,
+               ],
+       ];
+
+       /**
+        * Initialize/fetch the ApiMain instance for testing
+        * @return ApiMain
+        */
+       private static function getMain() {
+               if ( !self::$main ) {
+                       self::$main = new ApiMain( RequestContext::getMain() );
+                       self::$main->getContext()->setLanguage( 'en' );
+                       self::$main->getContext()->setTitle(
+                               Title::makeTitle( NS_SPECIAL, 'Badtitle/dummy title for ApiStructureTest' )
+                       );
+               }
+               return self::$main;
+       }
+
+       /**
+        * Test a message
+        * @param Message $msg
+        * @param string $what Which message is being checked
+        */
+       private function checkMessage( $msg, $what ) {
+               $msg = ApiBase::makeMessage( $msg, self::getMain()->getContext() );
+               $this->assertInstanceOf( 'Message', $msg, "$what message" );
+               $this->assertTrue( $msg->exists(), "$what message {$msg->getKey()} exists" );
+       }
+
+       /**
+        * @dataProvider provideDocumentationExists
+        * @param string $path Module path
+        * @param array $globals Globals to set
+        */
+       public function testDocumentationExists( $path, array $globals ) {
+               $main = self::getMain();
+
+               // Set configuration variables
+               $main->getContext()->setConfig( new MultiConfig( [
+                       new HashConfig( $globals ),
+                       RequestContext::getMain()->getConfig(),
+               ] ) );
+               foreach ( $globals as $k => $v ) {
+                       $this->setMwGlobals( "wg$k", $v );
+               }
+
+               // Fetch module.
+               $module = TestingAccessWrapper::newFromObject( $main->getModuleFromPath( $path ) );
+
+               // Test messages for flags.
+               foreach ( $module->getHelpFlags() as $flag ) {
+                       $this->checkMessage( "api-help-flag-$flag", "Flag $flag" );
+               }
+
+               // Module description messages.
+               $this->checkMessage( $module->getSummaryMessage(), 'Module summary' );
+               $this->checkMessage( $module->getExtendedDescription(), 'Module help top text' );
+
+               // Parameters. Lots of messages in here.
+               $params = $module->getFinalParams( ApiBase::GET_VALUES_FOR_HELP );
+               $tags = [];
+               foreach ( $params as $name => $settings ) {
+                       if ( !is_array( $settings ) ) {
+                               $settings = [];
+                       }
+
+                       // Basic description message
+                       if ( isset( $settings[ApiBase::PARAM_HELP_MSG] ) ) {
+                               $msg = $settings[ApiBase::PARAM_HELP_MSG];
+                       } else {
+                               $msg = "apihelp-{$path}-param-{$name}";
+                       }
+                       $this->checkMessage( $msg, "Parameter $name description" );
+
+                       // If param-per-value is in use, each value's message
+                       if ( isset( $settings[ApiBase::PARAM_HELP_MSG_PER_VALUE] ) ) {
+                               $this->assertInternalType( 'array', $settings[ApiBase::PARAM_HELP_MSG_PER_VALUE],
+                                       "Parameter $name PARAM_HELP_MSG_PER_VALUE is array" );
+                               $this->assertInternalType( 'array', $settings[ApiBase::PARAM_TYPE],
+                                       "Parameter $name PARAM_TYPE is array for msg-per-value mode" );
+                               $valueMsgs = $settings[ApiBase::PARAM_HELP_MSG_PER_VALUE];
+                               foreach ( $settings[ApiBase::PARAM_TYPE] as $value ) {
+                                       if ( isset( $valueMsgs[$value] ) ) {
+                                               $msg = $valueMsgs[$value];
+                                       } else {
+                                               $msg = "apihelp-{$path}-paramvalue-{$name}-{$value}";
+                                       }
+                                       $this->checkMessage( $msg, "Parameter $name value $value" );
+                               }
+                       }
+
+                       // Appended messages (e.g. "disabled in miser mode")
+                       if ( isset( $settings[ApiBase::PARAM_HELP_MSG_APPEND] ) ) {
+                               $this->assertInternalType( 'array', $settings[ApiBase::PARAM_HELP_MSG_APPEND],
+                                       "Parameter $name PARAM_HELP_MSG_APPEND is array" );
+                               foreach ( $settings[ApiBase::PARAM_HELP_MSG_APPEND] as $i => $msg ) {
+                                       $this->checkMessage( $msg, "Parameter $name HELP_MSG_APPEND #$i" );
+                               }
+                       }
+
+                       // Info tags (e.g. "only usable in mode 1") are typically shared by
+                       // several parameters, so accumulate them and test them later.
+                       if ( !empty( $settings[ApiBase::PARAM_HELP_MSG_INFO] ) ) {
+                               foreach ( $settings[ApiBase::PARAM_HELP_MSG_INFO] as $i ) {
+                                       $tags[array_shift( $i )] = 1;
+                               }
+                       }
+               }
+
+               // Info tags (e.g. "only usable in mode 1") accumulated above
+               foreach ( $tags as $tag => $dummy ) {
+                       $this->checkMessage( "apihelp-{$path}-paraminfo-{$tag}", "HELP_MSG_INFO tag $tag" );
+               }
+
+               // Messages for examples.
+               foreach ( $module->getExamplesMessages() as $qs => $msg ) {
+                       $this->assertStringStartsNotWith( 'api.php?', $qs,
+                               "Query string must not begin with 'api.php?'" );
+                       $this->checkMessage( $msg, "Example $qs" );
+               }
+       }
+
+       public static function provideDocumentationExists() {
+               $main = self::getMain();
+               $paths = self::getSubModulePaths( $main->getModuleManager() );
+               array_unshift( $paths, $main->getModulePath() );
+
+               $ret = [];
+               foreach ( $paths as $path ) {
+                       foreach ( self::$testGlobals as $globals ) {
+                               $g = [];
+                               foreach ( $globals as $k => $v ) {
+                                       $g[] = "$k=" . var_export( $v, 1 );
+                               }
+                               $k = "Module $path with " . implode( ', ', $g );
+                               $ret[$k] = [ $path, $globals ];
+                       }
+               }
+               return $ret;
+       }
+
+       /**
+        * @dataProvider provideParameterConsistency
+        * @param string $path
+        */
+       public function testParameterConsistency( $path ) {
+               $main = self::getMain();
+               $module = TestingAccessWrapper::newFromObject( $main->getModuleFromPath( $path ) );
+
+               $paramsPlain = $module->getFinalParams();
+               $paramsForHelp = $module->getFinalParams( ApiBase::GET_VALUES_FOR_HELP );
+
+               // avoid warnings about empty tests when no parameter needs to be checked
+               $this->assertTrue( true );
+
+               foreach ( [ $paramsPlain, $paramsForHelp ] as $params ) {
+                       foreach ( $params as $param => $config ) {
+                               if (
+                                       isset( $config[ApiBase::PARAM_ISMULTI_LIMIT1] )
+                                       || isset( $config[ApiBase::PARAM_ISMULTI_LIMIT2] )
+                               ) {
+                                       $this->assertTrue( !empty( $config[ApiBase::PARAM_ISMULTI] ), $param
+                                               . ': PARAM_ISMULTI_LIMIT* only makes sense when PARAM_ISMULTI is true' );
+                                       $this->assertTrue( isset( $config[ApiBase::PARAM_ISMULTI_LIMIT1] )
+                                               && isset( $config[ApiBase::PARAM_ISMULTI_LIMIT2] ), $param
+                                               . ': PARAM_ISMULTI_LIMIT1 and PARAM_ISMULTI_LIMIT2 must be used together' );
+                                       $this->assertType( 'int', $config[ApiBase::PARAM_ISMULTI_LIMIT1], $param
+                                               . 'PARAM_ISMULTI_LIMIT1 must be an integer' );
+                                       $this->assertType( 'int', $config[ApiBase::PARAM_ISMULTI_LIMIT2], $param
+                                               . 'PARAM_ISMULTI_LIMIT2 must be an integer' );
+                                       $this->assertGreaterThanOrEqual( $config[ApiBase::PARAM_ISMULTI_LIMIT1],
+                                               $config[ApiBase::PARAM_ISMULTI_LIMIT2], $param
+                                               . 'PARAM_ISMULTI limit cannot be smaller for users with apihighlimits rights' );
+                               }
+                       }
+               }
+       }
+
+       /**
+        * @return array List of API module paths to test
+        */
+       public static function provideParameterConsistency() {
+               $main = self::getMain();
+               $paths = self::getSubModulePaths( $main->getModuleManager() );
+               array_unshift( $paths, $main->getModulePath() );
+
+               $ret = [];
+               foreach ( $paths as $path ) {
+                       $ret[] = [ $path ];
+               }
+               return $ret;
+       }
+
+       /**
+        * Return paths of all submodules in an ApiModuleManager, recursively
+        * @param ApiModuleManager $manager
+        * @return string[]
+        */
+       protected static function getSubModulePaths( ApiModuleManager $manager ) {
+               $paths = [];
+               foreach ( $manager->getNames() as $name ) {
+                       $module = $manager->getModule( $name );
+                       $paths[] = $module->getModulePath();
+                       $subManager = $module->getModuleManager();
+                       if ( $subManager ) {
+                               $paths = array_merge( $paths, self::getSubModulePaths( $subManager ) );
+                       }
+               }
+               return $paths;
+       }
+}