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+<?php
+
+/**
+ * @since 1.18
+ */
+abstract class MediaWikiTestCase extends PHPUnit_Framework_TestCase {
+ /**
+ * $called tracks whether the setUp and tearDown method has been called.
+ * class extending MediaWikiTestCase usually override setUp and tearDown
+ * but forget to call the parent.
+ *
+ * The array format takes a method name as key and anything as a value.
+ * By asserting the key exist, we know the child class has called the
+ * parent.
+ *
+ * This property must be private, we do not want child to override it,
+ * they should call the appropriate parent method instead.
+ */
+ private $called = array();
+
+ /**
+ * @var TestUser[]
+ * @since 1.20
+ */
+ public static $users;
+
+ /**
+ * @var DatabaseBase
+ * @since 1.18
+ */
+ protected $db;
+
+ /**
+ * @var array
+ * @since 1.19
+ */
+ protected $tablesUsed = array(); // tables with data
+
+ private static $useTemporaryTables = true;
+ private static $reuseDB = false;
+ private static $dbSetup = false;
+ private static $oldTablePrefix = false;
+
+ /**
+ * Original value of PHP's error_reporting setting.
+ *
+ * @var int
+ */
+ private $phpErrorLevel;
+
+ /**
+ * Holds the paths of temporary files/directories created through getNewTempFile,
+ * and getNewTempDirectory
+ *
+ * @var array
+ */
+ private $tmpFiles = array();
+
+ /**
+ * Holds original values of MediaWiki configuration settings
+ * to be restored in tearDown().
+ * See also setMwGlobals().
+ * @var array
+ */
+ private $mwGlobals = array();
+
+ /**
+ * Table name prefixes. Oracle likes it shorter.
+ */
+ const DB_PREFIX = 'unittest_';
+ const ORA_DB_PREFIX = 'ut_';
+
+ /**
+ * @var array
+ * @since 1.18
+ */
+ protected $supportedDBs = array(
+ 'mysql',
+ 'sqlite',
+ 'postgres',
+ 'oracle'
+ );
+
+ public function __construct( $name = null, array $data = array(), $dataName = '' ) {
+ parent::__construct( $name, $data, $dataName );
+
+ $this->backupGlobals = false;
+ $this->backupStaticAttributes = false;
+ }
+
+ public function __destruct() {
+ // Complain if self::setUp() was called, but not self::tearDown()
+ // $this->called['setUp'] will be checked by self::testMediaWikiTestCaseParentSetupCalled()
+ if ( isset( $this->called['setUp'] ) && !isset( $this->called['tearDown'] ) ) {
+ throw new MWException( get_called_class() . "::tearDown() must call parent::tearDown()" );
+ }
+ }
+
+ public function run( PHPUnit_Framework_TestResult $result = null ) {
+ /* Some functions require some kind of caching, and will end up using the db,
+ * which we can't allow, as that would open a new connection for mysql.
+ * Replace with a HashBag. They would not be going to persist anyway.
+ */
+ ObjectCache::$instances[CACHE_DB] = new HashBagOStuff;
+
+ $needsResetDB = false;
+ $logName = get_class( $this ) . '::' . $this->getName( false );
+
+ if ( $this->needsDB() ) {
+ // set up a DB connection for this test to use
+
+ self::$useTemporaryTables = !$this->getCliArg( 'use-normal-tables' );
+ self::$reuseDB = $this->getCliArg( 'reuse-db' );
+
+ $this->db = wfGetDB( DB_MASTER );
+
+ $this->checkDbIsSupported();
+
+ if ( !self::$dbSetup ) {
+ wfProfileIn( $logName . ' (clone-db)' );
+
+ // switch to a temporary clone of the database
+ self::setupTestDB( $this->db, $this->dbPrefix() );
+
+ if ( ( $this->db->getType() == 'oracle' || !self::$useTemporaryTables ) && self::$reuseDB ) {
+ $this->resetDB();
+ }
+
+ wfProfileOut( $logName . ' (clone-db)' );
+ }
+
+ wfProfileIn( $logName . ' (prepare-db)' );
+ $this->addCoreDBData();
+ $this->addDBData();
+ wfProfileOut( $logName . ' (prepare-db)' );
+
+ $needsResetDB = true;
+ }
+
+ wfProfileIn( $logName );
+ parent::run( $result );
+ wfProfileOut( $logName );
+
+ if ( $needsResetDB ) {
+ wfProfileIn( $logName . ' (reset-db)' );
+ $this->resetDB();
+ wfProfileOut( $logName . ' (reset-db)' );
+ }
+ }
+
+ /**
+ * @since 1.21
+ *
+ * @return bool
+ */
+ public function usesTemporaryTables() {
+ return self::$useTemporaryTables;
+ }
+
+ /**
+ * Obtains a new temporary file name
+ *
+ * The obtained filename is enlisted to be removed upon tearDown
+ *
+ * @since 1.20
+ *
+ * @return string Absolute name of the temporary file
+ */
+ protected function getNewTempFile() {
+ $fileName = tempnam( wfTempDir(), 'MW_PHPUnit_' . get_class( $this ) . '_' );
+ $this->tmpFiles[] = $fileName;
+
+ return $fileName;
+ }
+
+ /**
+ * obtains a new temporary directory
+ *
+ * The obtained directory is enlisted to be removed (recursively with all its contained
+ * files) upon tearDown.
+ *
+ * @since 1.20
+ *
+ * @return string Absolute name of the temporary directory
+ */
+ protected function getNewTempDirectory() {
+ // Starting of with a temporary /file/.
+ $fileName = $this->getNewTempFile();
+
+ // Converting the temporary /file/ to a /directory/
+ //
+ // The following is not atomic, but at least we now have a single place,
+ // where temporary directory creation is bundled and can be improved
+ unlink( $fileName );
+ $this->assertTrue( wfMkdirParents( $fileName ) );
+
+ return $fileName;
+ }
+
+ protected function setUp() {
+ wfProfileIn( __METHOD__ );
+ parent::setUp();
+ $this->called['setUp'] = true;
+
+ $this->phpErrorLevel = intval( ini_get( 'error_reporting' ) );
+
+ // Cleaning up temporary files
+ foreach ( $this->tmpFiles as $fileName ) {
+ if ( is_file( $fileName ) || ( is_link( $fileName ) ) ) {
+ unlink( $fileName );
+ } elseif ( is_dir( $fileName ) ) {
+ wfRecursiveRemoveDir( $fileName );
+ }
+ }
+
+ if ( $this->needsDB() && $this->db ) {
+ // Clean up open transactions
+ while ( $this->db->trxLevel() > 0 ) {
+ $this->db->rollback();
+ }
+
+ // don't ignore DB errors
+ $this->db->ignoreErrors( false );
+ }
+
+ wfProfileOut( __METHOD__ );
+ }
+
+ protected function tearDown() {
+ wfProfileIn( __METHOD__ );
+
+ $this->called['tearDown'] = true;
+ // Cleaning up temporary files
+ foreach ( $this->tmpFiles as $fileName ) {
+ if ( is_file( $fileName ) || ( is_link( $fileName ) ) ) {
+ unlink( $fileName );
+ } elseif ( is_dir( $fileName ) ) {
+ wfRecursiveRemoveDir( $fileName );
+ }
+ }
+
+ if ( $this->needsDB() && $this->db ) {
+ // Clean up open transactions
+ while ( $this->db->trxLevel() > 0 ) {
+ $this->db->rollback();
+ }
+
+ // don't ignore DB errors
+ $this->db->ignoreErrors( false );
+ }
+
+ // Restore mw globals
+ foreach ( $this->mwGlobals as $key => $value ) {
+ $GLOBALS[$key] = $value;
+ }
+ $this->mwGlobals = array();
+ RequestContext::resetMain();
+ MediaHandler::resetCache();
+
+ $phpErrorLevel = intval( ini_get( 'error_reporting' ) );
+
+ if ( $phpErrorLevel !== $this->phpErrorLevel ) {
+ ini_set( 'error_reporting', $this->phpErrorLevel );
+
+ $oldHex = strtoupper( dechex( $this->phpErrorLevel ) );
+ $newHex = strtoupper( dechex( $phpErrorLevel ) );
+ $message = "PHP error_reporting setting was left dirty: "
+ . "was 0x$oldHex before test, 0x$newHex after test!";
+
+ $this->fail( $message );
+ }
+
+ parent::tearDown();
+ wfProfileOut( __METHOD__ );
+ }
+
+ /**
+ * Make sure MediaWikiTestCase extending classes have called their
+ * parent setUp method
+ */
+ final public function testMediaWikiTestCaseParentSetupCalled() {
+ $this->assertArrayHasKey( 'setUp', $this->called,
+ get_called_class() . "::setUp() must call parent::setUp()"
+ );
+ }
+
+ /**
+ * Sets a global, maintaining a stashed version of the previous global to be
+ * restored in tearDown
+ *
+ * The key is added to the array of globals that will be reset afterwards
+ * in the tearDown().
+ *
+ * @example
+ * <code>
+ * protected function setUp() {
+ * $this->setMwGlobals( 'wgRestrictStuff', true );
+ * }
+ *
+ * function testFoo() {}
+ *
+ * function testBar() {}
+ * $this->assertTrue( self::getX()->doStuff() );
+ *
+ * $this->setMwGlobals( 'wgRestrictStuff', false );
+ * $this->assertTrue( self::getX()->doStuff() );
+ * }
+ *
+ * function testQuux() {}
+ * </code>
+ *
+ * @param array|string $pairs Key to the global variable, or an array
+ * of key/value pairs.
+ * @param mixed $value Value to set the global to (ignored
+ * if an array is given as first argument).
+ *
+ * @since 1.21
+ */
+ protected function setMwGlobals( $pairs, $value = null ) {
+ if ( is_string( $pairs ) ) {
+ $pairs = array( $pairs => $value );
+ }
+
+ $this->stashMwGlobals( array_keys( $pairs ) );
+
+ foreach ( $pairs as $key => $value ) {
+ $GLOBALS[$key] = $value;
+ }
+ }
+
+ /**
+ * Stashes the global, will be restored in tearDown()
+ *
+ * Individual test functions may override globals through the setMwGlobals() function
+ * or directly. When directly overriding globals their keys should first be passed to this
+ * method in setUp to avoid breaking global state for other tests
+ *
+ * That way all other tests are executed with the same settings (instead of using the
+ * unreliable local settings for most tests and fix it only for some tests).
+ *
+ * @param array|string $globalKeys Key to the global variable, or an array of keys.
+ *
+ * @throws Exception When trying to stash an unset global
+ * @since 1.23
+ */
+ protected function stashMwGlobals( $globalKeys ) {
+ if ( is_string( $globalKeys ) ) {
+ $globalKeys = array( $globalKeys );
+ }
+
+ foreach ( $globalKeys as $globalKey ) {
+ // NOTE: make sure we only save the global once or a second call to
+ // setMwGlobals() on the same global would override the original
+ // value.
+ if ( !array_key_exists( $globalKey, $this->mwGlobals ) ) {
+ if ( !array_key_exists( $globalKey, $GLOBALS ) ) {
+ throw new Exception( "Global with key {$globalKey} doesn't exist and cant be stashed" );
+ }
+ // NOTE: we serialize then unserialize the value in case it is an object
+ // this stops any objects being passed by reference. We could use clone
+ // and if is_object but this does account for objects within objects!
+ try {
+ $this->mwGlobals[$globalKey] = unserialize( serialize( $GLOBALS[$globalKey] ) );
+ }
+ // NOTE; some things such as Closures are not serializable
+ // in this case just set the value!
+ catch ( Exception $e ) {
+ $this->mwGlobals[$globalKey] = $GLOBALS[$globalKey];
+ }
+ }
+ }
+ }
+
+ /**
+ * Merges the given values into a MW global array variable.
+ * Useful for setting some entries in a configuration array, instead of
+ * setting the entire array.
+ *
+ * @param string $name The name of the global, as in wgFooBar
+ * @param array $values The array containing the entries to set in that global
+ *
+ * @throws MWException If the designated global is not an array.
+ *
+ * @since 1.21
+ */
+ protected function mergeMwGlobalArrayValue( $name, $values ) {
+ if ( !isset( $GLOBALS[$name] ) ) {
+ $merged = $values;
+ } else {
+ if ( !is_array( $GLOBALS[$name] ) ) {
+ throw new MWException( "MW global $name is not an array." );
+ }
+
+ // NOTE: do not use array_merge, it screws up for numeric keys.
+ $merged = $GLOBALS[$name];
+ foreach ( $values as $k => $v ) {
+ $merged[$k] = $v;
+ }
+ }
+
+ $this->setMwGlobals( $name, $merged );
+ }
+
+ /**
+ * @return string
+ * @since 1.18
+ */
+ public function dbPrefix() {
+ return $this->db->getType() == 'oracle' ? self::ORA_DB_PREFIX : self::DB_PREFIX;
+ }
+
+ /**
+ * @return bool
+ * @since 1.18
+ */
+ public function needsDB() {
+ # if the test says it uses database tables, it needs the database
+ if ( $this->tablesUsed ) {
+ return true;
+ }
+
+ # if the test says it belongs to the Database group, it needs the database
+ $rc = new ReflectionClass( $this );
+ if ( preg_match( '/@group +Database/im', $rc->getDocComment() ) ) {
+ return true;
+ }
+
+ return false;
+ }
+
+ /**
+ * Stub. If a test needs to add additional data to the database, it should
+ * implement this method and do so
+ *
+ * @since 1.18
+ */
+ public function addDBData() {
+ }
+
+ private function addCoreDBData() {
+ if ( $this->db->getType() == 'oracle' ) {
+
+ # Insert 0 user to prevent FK violations
+ # Anonymous user
+ $this->db->insert( 'user', array(
+ 'user_id' => 0,
+ 'user_name' => 'Anonymous' ), __METHOD__, array( 'IGNORE' ) );
+
+ # Insert 0 page to prevent FK violations
+ # Blank page
+ $this->db->insert( 'page', array(
+ 'page_id' => 0,
+ 'page_namespace' => 0,
+ 'page_title' => ' ',
+ 'page_restrictions' => null,
+ 'page_counter' => 0,
+ 'page_is_redirect' => 0,
+ 'page_is_new' => 0,
+ 'page_random' => 0,
+ 'page_touched' => $this->db->timestamp(),
+ 'page_latest' => 0,
+ 'page_len' => 0 ), __METHOD__, array( 'IGNORE' ) );
+ }
+
+ User::resetIdByNameCache();
+
+ //Make sysop user
+ $user = User::newFromName( 'UTSysop' );
+
+ if ( $user->idForName() == 0 ) {
+ $user->addToDatabase();
+ $user->setPassword( 'UTSysopPassword' );
+
+ $user->addGroup( 'sysop' );
+ $user->addGroup( 'bureaucrat' );
+ $user->saveSettings();
+ }
+
+ //Make 1 page with 1 revision
+ $page = WikiPage::factory( Title::newFromText( 'UTPage' ) );
+ if ( $page->getId() == 0 ) {
+ $page->doEditContent(
+ new WikitextContent( 'UTContent' ),
+ 'UTPageSummary',
+ EDIT_NEW,
+ false,
+ User::newFromName( 'UTSysop' ) );
+ }
+ }
+
+ /**
+ * Restores MediaWiki to using the table set (table prefix) it was using before
+ * setupTestDB() was called. Useful if we need to perform database operations
+ * after the test run has finished (such as saving logs or profiling info).
+ *
+ * @since 1.21
+ */
+ public static function teardownTestDB() {
+ if ( !self::$dbSetup ) {
+ return;
+ }
+
+ CloneDatabase::changePrefix( self::$oldTablePrefix );
+
+ self::$oldTablePrefix = false;
+ self::$dbSetup = false;
+ }
+
+ /**
+ * Creates an empty skeleton of the wiki database by cloning its structure
+ * to equivalent tables using the given $prefix. Then sets MediaWiki to
+ * use the new set of tables (aka schema) instead of the original set.
+ *
+ * This is used to generate a dummy table set, typically consisting of temporary
+ * tables, that will be used by tests instead of the original wiki database tables.
+ *
+ * @since 1.21
+ *
+ * @note the original table prefix is stored in self::$oldTablePrefix. This is used
+ * by teardownTestDB() to return the wiki to using the original table set.
+ *
+ * @note this method only works when first called. Subsequent calls have no effect,
+ * even if using different parameters.
+ *
+ * @param DatabaseBase $db The database connection
+ * @param string $prefix The prefix to use for the new table set (aka schema).
+ *
+ * @throws MWException If the database table prefix is already $prefix
+ */
+ public static function setupTestDB( DatabaseBase $db, $prefix ) {
+ global $wgDBprefix;
+ if ( $wgDBprefix === $prefix ) {
+ throw new MWException(
+ 'Cannot run unit tests, the database prefix is already "' . $prefix . '"' );
+ }
+
+ if ( self::$dbSetup ) {
+ return;
+ }
+
+ $tablesCloned = self::listTables( $db );
+ $dbClone = new CloneDatabase( $db, $tablesCloned, $prefix );
+ $dbClone->useTemporaryTables( self::$useTemporaryTables );
+
+ self::$dbSetup = true;
+ self::$oldTablePrefix = $wgDBprefix;
+
+ if ( ( $db->getType() == 'oracle' || !self::$useTemporaryTables ) && self::$reuseDB ) {
+ CloneDatabase::changePrefix( $prefix );
+
+ return;
+ } else {
+ $dbClone->cloneTableStructure();
+ }
+
+ if ( $db->getType() == 'oracle' ) {
+ $db->query( 'BEGIN FILL_WIKI_INFO; END;' );
+ }
+ }
+
+ /**
+ * Empty all tables so they can be repopulated for tests
+ */
+ private function resetDB() {
+ if ( $this->db ) {
+ if ( $this->db->getType() == 'oracle' ) {
+ if ( self::$useTemporaryTables ) {
+ wfGetLB()->closeAll();
+ $this->db = wfGetDB( DB_MASTER );
+ } else {
+ foreach ( $this->tablesUsed as $tbl ) {
+ if ( $tbl == 'interwiki' ) {
+ continue;
+ }
+ $this->db->query( 'TRUNCATE TABLE ' . $this->db->tableName( $tbl ), __METHOD__ );
+ }
+ }
+ } else {
+ foreach ( $this->tablesUsed as $tbl ) {
+ if ( $tbl == 'interwiki' || $tbl == 'user' ) {
+ continue;
+ }
+ $this->db->delete( $tbl, '*', __METHOD__ );
+ }
+ }
+ }
+ }
+
+ /**
+ * @since 1.18
+ *
+ * @param string $func
+ * @param array $args
+ *
+ * @return mixed
+ * @throws MWException
+ */
+ public function __call( $func, $args ) {
+ static $compatibility = array(
+ 'assertEmpty' => 'assertEmpty2', // assertEmpty was added in phpunit 3.7.32
+ );
+
+ if ( isset( $compatibility[$func] ) ) {
+ return call_user_func_array( array( $this, $compatibility[$func] ), $args );
+ } else {
+ throw new MWException( "Called non-existant $func method on "
+ . get_class( $this ) );
+ }
+ }
+
+ /**
+ * Used as a compatibility method for phpunit < 3.7.32
+ * @param string $value
+ * @param string $msg
+ */
+ private function assertEmpty2( $value, $msg ) {
+ return $this->assertTrue( $value == '', $msg );
+ }
+
+ private static function unprefixTable( $tableName ) {
+ global $wgDBprefix;
+
+ return substr( $tableName, strlen( $wgDBprefix ) );
+ }
+
+ private static function isNotUnittest( $table ) {
+ return strpos( $table, 'unittest_' ) !== 0;
+ }
+
+ /**
+ * @since 1.18
+ *
+ * @param DataBaseBase $db
+ *
+ * @return array
+ */
+ public static function listTables( $db ) {
+ global $wgDBprefix;
+
+ $tables = $db->listTables( $wgDBprefix, __METHOD__ );
+
+ if ( $db->getType() === 'mysql' ) {
+ # bug 43571: cannot clone VIEWs under MySQL
+ $views = $db->listViews( $wgDBprefix, __METHOD__ );
+ $tables = array_diff( $tables, $views );
+ }
+ $tables = array_map( array( __CLASS__, 'unprefixTable' ), $tables );
+
+ // Don't duplicate test tables from the previous fataled run
+ $tables = array_filter( $tables, array( __CLASS__, 'isNotUnittest' ) );
+
+ if ( $db->getType() == 'sqlite' ) {
+ $tables = array_flip( $tables );
+ // these are subtables of searchindex and don't need to be duped/dropped separately
+ unset( $tables['searchindex_content'] );
+ unset( $tables['searchindex_segdir'] );
+ unset( $tables['searchindex_segments'] );
+ $tables = array_flip( $tables );
+ }
+
+ return $tables;
+ }
+
+ /**
+ * @throws MWException
+ * @since 1.18
+ */
+ protected function checkDbIsSupported() {
+ if ( !in_array( $this->db->getType(), $this->supportedDBs ) ) {
+ throw new MWException( $this->db->getType() . " is not currently supported for unit testing." );
+ }
+ }
+
+ /**
+ * @since 1.18
+ * @param string $offset
+ * @return mixed
+ */
+ public function getCliArg( $offset ) {
+ if ( isset( PHPUnitMaintClass::$additionalOptions[$offset] ) ) {
+ return PHPUnitMaintClass::$additionalOptions[$offset];
+ }
+ }
+
+ /**
+ * @since 1.18
+ * @param string $offset
+ * @param mixed $value
+ */
+ public function setCliArg( $offset, $value ) {
+ PHPUnitMaintClass::$additionalOptions[$offset] = $value;
+ }
+
+ /**
+ * Don't throw a warning if $function is deprecated and called later
+ *
+ * @since 1.19
+ *
+ * @param string $function
+ */
+ public function hideDeprecated( $function ) {
+ wfSuppressWarnings();
+ wfDeprecated( $function );
+ wfRestoreWarnings();
+ }
+
+ /**
+ * Asserts that the given database query yields the rows given by $expectedRows.
+ * The expected rows should be given as indexed (not associative) arrays, with
+ * the values given in the order of the columns in the $fields parameter.
+ * Note that the rows are sorted by the columns given in $fields.
+ *
+ * @since 1.20
+ *
+ * @param string|array $table The table(s) to query
+ * @param string|array $fields The columns to include in the result (and to sort by)
+ * @param string|array $condition "where" condition(s)
+ * @param array $expectedRows An array of arrays giving the expected rows.
+ *
+ * @throws MWException If this test cases's needsDB() method doesn't return true.
+ * Test cases can use "@group Database" to enable database test support,
+ * or list the tables under testing in $this->tablesUsed, or override the
+ * needsDB() method.
+ */
+ protected function assertSelect( $table, $fields, $condition, array $expectedRows ) {
+ if ( !$this->needsDB() ) {
+ throw new MWException( 'When testing database state, the test cases\'s needDB()' .
+ ' method should return true. Use @group Database or $this->tablesUsed.' );
+ }
+
+ $db = wfGetDB( DB_SLAVE );
+
+ $res = $db->select( $table, $fields, $condition, wfGetCaller(), array( 'ORDER BY' => $fields ) );
+ $this->assertNotEmpty( $res, "query failed: " . $db->lastError() );
+
+ $i = 0;
+
+ foreach ( $expectedRows as $expected ) {
+ $r = $res->fetchRow();
+ self::stripStringKeys( $r );
+
+ $i += 1;
+ $this->assertNotEmpty( $r, "row #$i missing" );
+
+ $this->assertEquals( $expected, $r, "row #$i mismatches" );
+ }
+
+ $r = $res->fetchRow();
+ self::stripStringKeys( $r );
+
+ $this->assertFalse( $r, "found extra row (after #$i)" );
+ }
+
+ /**
+ * Utility method taking an array of elements and wrapping
+ * each element in it's own array. Useful for data providers
+ * that only return a single argument.
+ *
+ * @since 1.20
+ *
+ * @param array $elements
+ *
+ * @return array
+ */
+ protected function arrayWrap( array $elements ) {
+ return array_map(
+ function ( $element ) {
+ return array( $element );
+ },
+ $elements
+ );
+ }
+
+ /**
+ * Assert that two arrays are equal. By default this means that both arrays need to hold
+ * the same set of values. Using additional arguments, order and associated key can also
+ * be set as relevant.
+ *
+ * @since 1.20
+ *
+ * @param array $expected
+ * @param array $actual
+ * @param bool $ordered If the order of the values should match
+ * @param bool $named If the keys should match
+ */
+ protected function assertArrayEquals( array $expected, array $actual,
+ $ordered = false, $named = false
+ ) {
+ if ( !$ordered ) {
+ $this->objectAssociativeSort( $expected );
+ $this->objectAssociativeSort( $actual );
+ }
+
+ if ( !$named ) {
+ $expected = array_values( $expected );
+ $actual = array_values( $actual );
+ }
+
+ call_user_func_array(
+ array( $this, 'assertEquals' ),
+ array_merge( array( $expected, $actual ), array_slice( func_get_args(), 4 ) )
+ );
+ }
+
+ /**
+ * Put each HTML element on its own line and then equals() the results
+ *
+ * Use for nicely formatting of PHPUnit diff output when comparing very
+ * simple HTML
+ *
+ * @since 1.20
+ *
+ * @param string $expected HTML on oneline
+ * @param string $actual HTML on oneline
+ * @param string $msg Optional message
+ */
+ protected function assertHTMLEquals( $expected, $actual, $msg = '' ) {
+ $expected = str_replace( '>', ">\n", $expected );
+ $actual = str_replace( '>', ">\n", $actual );
+
+ $this->assertEquals( $expected, $actual, $msg );
+ }
+
+ /**
+ * Does an associative sort that works for objects.
+ *
+ * @since 1.20
+ *
+ * @param array $array
+ */
+ protected function objectAssociativeSort( array &$array ) {
+ uasort(
+ $array,
+ function ( $a, $b ) {
+ return serialize( $a ) > serialize( $b ) ? 1 : -1;
+ }
+ );
+ }
+
+ /**
+ * Utility function for eliminating all string keys from an array.
+ * Useful to turn a database result row as returned by fetchRow() into
+ * a pure indexed array.
+ *
+ * @since 1.20
+ *
+ * @param mixed $r The array to remove string keys from.
+ */
+ protected static function stripStringKeys( &$r ) {
+ if ( !is_array( $r ) ) {
+ return;
+ }
+
+ foreach ( $r as $k => $v ) {
+ if ( is_string( $k ) ) {
+ unset( $r[$k] );
+ }
+ }
+ }
+
+ /**
+ * Asserts that the provided variable is of the specified
+ * internal type or equals the $value argument. This is useful
+ * for testing return types of functions that return a certain
+ * type or *value* when not set or on error.
+ *
+ * @since 1.20
+ *
+ * @param string $type
+ * @param mixed $actual
+ * @param mixed $value
+ * @param string $message
+ */
+ protected function assertTypeOrValue( $type, $actual, $value = false, $message = '' ) {
+ if ( $actual === $value ) {
+ $this->assertTrue( true, $message );
+ } else {
+ $this->assertType( $type, $actual, $message );
+ }
+ }
+
+ /**
+ * Asserts the type of the provided value. This can be either
+ * in internal type such as boolean or integer, or a class or
+ * interface the value extends or implements.
+ *
+ * @since 1.20
+ *
+ * @param string $type
+ * @param mixed $actual
+ * @param string $message
+ */
+ protected function assertType( $type, $actual, $message = '' ) {
+ if ( class_exists( $type ) || interface_exists( $type ) ) {
+ $this->assertInstanceOf( $type, $actual, $message );
+ } else {
+ $this->assertInternalType( $type, $actual, $message );
+ }
+ }
+
+ /**
+ * Returns true if the given namespace defaults to Wikitext
+ * according to $wgNamespaceContentModels
+ *
+ * @param int $ns The namespace ID to check
+ *
+ * @return bool
+ * @since 1.21
+ */
+ protected function isWikitextNS( $ns ) {
+ global $wgNamespaceContentModels;
+
+ if ( isset( $wgNamespaceContentModels[$ns] ) ) {
+ return $wgNamespaceContentModels[$ns] === CONTENT_MODEL_WIKITEXT;
+ }
+
+ return true;
+ }
+
+ /**
+ * Returns the ID of a namespace that defaults to Wikitext.
+ *
+ * @throws MWException If there is none.
+ * @return int The ID of the wikitext Namespace
+ * @since 1.21
+ */
+ protected function getDefaultWikitextNS() {
+ global $wgNamespaceContentModels;
+
+ static $wikitextNS = null; // this is not going to change
+ if ( $wikitextNS !== null ) {
+ return $wikitextNS;
+ }
+
+ // quickly short out on most common case:
+ if ( !isset( $wgNamespaceContentModels[NS_MAIN] ) ) {
+ return NS_MAIN;
+ }
+
+ // NOTE: prefer content namespaces
+ $namespaces = array_unique( array_merge(
+ MWNamespace::getContentNamespaces(),
+ array( NS_MAIN, NS_HELP, NS_PROJECT ), // prefer these
+ MWNamespace::getValidNamespaces()
+ ) );
+
+ $namespaces = array_diff( $namespaces, array(
+ NS_FILE, NS_CATEGORY, NS_MEDIAWIKI, NS_USER // don't mess with magic namespaces
+ ) );
+
+ $talk = array_filter( $namespaces, function ( $ns ) {
+ return MWNamespace::isTalk( $ns );
+ } );
+
+ // prefer non-talk pages
+ $namespaces = array_diff( $namespaces, $talk );
+ $namespaces = array_merge( $namespaces, $talk );
+
+ // check default content model of each namespace
+ foreach ( $namespaces as $ns ) {
+ if ( !isset( $wgNamespaceContentModels[$ns] ) ||
+ $wgNamespaceContentModels[$ns] === CONTENT_MODEL_WIKITEXT
+ ) {
+
+ $wikitextNS = $ns;
+
+ return $wikitextNS;
+ }
+ }
+
+ // give up
+ // @todo Inside a test, we could skip the test as incomplete.
+ // But frequently, this is used in fixture setup.
+ throw new MWException( "No namespace defaults to wikitext!" );
+ }
+
+ /**
+ * Check, if $wgDiff3 is set and ready to merge
+ * Will mark the calling test as skipped, if not ready
+ *
+ * @since 1.21
+ */
+ protected function checkHasDiff3() {
+ global $wgDiff3;
+
+ # This check may also protect against code injection in
+ # case of broken installations.
+ wfSuppressWarnings();
+ $haveDiff3 = $wgDiff3 && file_exists( $wgDiff3 );
+ wfRestoreWarnings();
+
+ if ( !$haveDiff3 ) {
+ $this->markTestSkipped( "Skip test, since diff3 is not configured" );
+ }
+ }
+
+ /**
+ * Check whether we have the 'gzip' commandline utility, will skip
+ * the test whenever "gzip -V" fails.
+ *
+ * Result is cached at the process level.
+ *
+ * @return bool
+ *
+ * @since 1.21
+ */
+ protected function checkHasGzip() {
+ static $haveGzip;
+
+ if ( $haveGzip === null ) {
+ $retval = null;
+ wfShellExec( 'gzip -V', $retval );
+ $haveGzip = ( $retval === 0 );
+ }
+
+ if ( !$haveGzip ) {
+ $this->markTestSkipped( "Skip test, requires the gzip utility in PATH" );
+ }
+
+ return $haveGzip;
+ }
+
+ /**
+ * Check if $extName is a loaded PHP extension, will skip the
+ * test whenever it is not loaded.
+ *
+ * @since 1.21
+ * @param string $extName
+ * @return bool
+ */
+ protected function checkPHPExtension( $extName ) {
+ $loaded = extension_loaded( $extName );
+ if ( !$loaded ) {
+ $this->markTestSkipped( "PHP extension '$extName' is not loaded, skipping." );
+ }
+
+ return $loaded;
+ }
+
+ /**
+ * Asserts that an exception of the specified type occurs when running
+ * the provided code.
+ *
+ * @since 1.21
+ * @deprecated since 1.22 Use setExpectedException
+ *
+ * @param callable $code
+ * @param string $expected
+ * @param string $message
+ */
+ protected function assertException( $code, $expected = 'Exception', $message = '' ) {
+ $pokemons = null;
+
+ try {
+ call_user_func( $code );
+ } catch ( Exception $pokemons ) {
+ // Gotta Catch 'Em All!
+ }
+
+ if ( $message === '' ) {
+ $message = 'An exception of type "' . $expected . '" should have been thrown';
+ }
+
+ $this->assertInstanceOf( $expected, $pokemons, $message );
+ }
+
+ /**
+ * Asserts that the given string is a valid HTML snippet.
+ * Wraps the given string in the required top level tags and
+ * then calls assertValidHtmlDocument().
+ * The snippet is expected to be HTML 5.
+ *
+ * @since 1.23
+ *
+ * @note Will mark the test as skipped if the "tidy" module is not installed.
+ * @note This ignores $wgUseTidy, so we can check for valid HTML even (and especially)
+ * when automatic tidying is disabled.
+ *
+ * @param string $html An HTML snippet (treated as the contents of the body tag).
+ */
+ protected function assertValidHtmlSnippet( $html ) {
+ $html = '<!DOCTYPE html><html><head><title>test</title></head><body>' . $html . '</body></html>';
+ $this->assertValidHtmlDocument( $html );
+ }
+
+ /**
+ * Asserts that the given string is valid HTML document.
+ *
+ * @since 1.23
+ *
+ * @note Will mark the test as skipped if the "tidy" module is not installed.
+ * @note This ignores $wgUseTidy, so we can check for valid HTML even (and especially)
+ * when automatic tidying is disabled.
+ *
+ * @param string $html A complete HTML document
+ */
+ protected function assertValidHtmlDocument( $html ) {
+ // Note: we only validate if the tidy PHP extension is available.
+ // In case wgTidyInternal is false, MWTidy would fall back to the command line version
+ // of tidy. In that case however, we can not reliably detect whether a failing validation
+ // is due to malformed HTML, or caused by tidy not being installed as a command line tool.
+ // That would cause all HTML assertions to fail on a system that has no tidy installed.
+ if ( !$GLOBALS['wgTidyInternal'] ) {
+ $this->markTestSkipped( 'Tidy extension not installed' );
+ }
+
+ $errorBuffer = '';
+ MWTidy::checkErrors( $html, $errorBuffer );
+ $allErrors = preg_split( '/[\r\n]+/', $errorBuffer );
+
+ // Filter Tidy warnings which aren't useful for us.
+ // Tidy eg. often cries about parameters missing which have actually
+ // been deprecated since HTML4, thus we should not care about them.
+ $errors = preg_grep(
+ '/^(.*Warning: (trimming empty|.* lacks ".*?" attribute).*|\s*)$/m',
+ $allErrors, PREG_GREP_INVERT
+ );
+
+ $this->assertEmpty( $errors, implode( "\n", $errors ) );
+ }
+
+ /**
+ * Note: we are overriding this method to remove the deprecated error
+ * @see https://bugzilla.wikimedia.org/show_bug.cgi?id=69505
+ * @see https://github.com/sebastianbergmann/phpunit/issues/1292
+ *
+ * @param array $matcher
+ * @param string $actual
+ * @param string $message
+ * @param bool $isHtml
+ */
+ public static function assertTag( $matcher, $actual, $message = '', $isHtml = true ) {
+ //trigger_error(__METHOD__ . ' is deprecated', E_USER_DEPRECATED);
+
+ $dom = PHPUnit_Util_XML::load( $actual, $isHtml );
+ $tags = PHPUnit_Util_XML::findNodes( $dom, $matcher, $isHtml );
+ $matched = count( $tags ) > 0 && $tags[0] instanceof DOMNode;
+
+ self::assertTrue( $matched, $message );
+ }
+}
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