mirror of
https://gerrit.wikimedia.org/r/mediawiki/extensions/VisualEditor
synced 2024-11-25 06:46:26 +00:00
316 lines
8.4 KiB
JavaScript
316 lines
8.4 KiB
JavaScript
/**
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* Initial parser tests runner for experimental JS parser
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*
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* This pulls all the parserTests.txt items and runs them through the JS
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* parser and JS HTML renderer. Currently no comparison is done on output,
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* as a direct string comparison won't be very encouraging. :)
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*
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* Needs smarter compare, as well as search-y helpers.
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*
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* 2011-07-20 <brion@pobox.com>
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*/
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(function() {
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//"use strict";
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var fs = require('fs'),
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path = require('path'),
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jsDiff = require('diff'),
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HTML5 = require('html5').HTML5;
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// @fixme wrap more or this setup in a common module
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// Fetch up some of our wacky parser bits...
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var basePath = path.join(path.dirname(path.dirname(process.cwd())), 'modules');
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function _require(filename) {
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return require(path.join(basePath, filename));
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}
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function _import(filename, symbols) {
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var module = _require(filename);
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symbols.forEach(function(symbol) {
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global[symbol] = module[symbol];
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});
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}
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// needed for html5 parser adapter
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//var events = require('events');
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// For now most modules only need this for $.extend and $.each :)
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global.$ = require('jquery');
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// hack for renderer
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global.document = $('<div>')[0].ownerDocument;
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var pj = path.join;
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// Local CommonJS-friendly libs
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global.PEG = _require(pj('parser', 'lib.pegjs.js'));
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// Our code...
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_import(pj('parser', 'mediawiki.parser.peg.js'), ['PegParser']);
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_import(pj('parser', 'mediawiki.parser.environment.js'), ['MWParserEnvironment']);
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_import(pj('parser', 'ext.cite.taghook.ref.js'), ['MWRefTagHook']);
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_import(pj('parser', 'mediawiki.html5TokenEmitter.js'), ['FauxHTML5']);
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_import(pj('parser', 'mediawiki.DOMPostProcessor.js'), ['DOMPostProcessor']);
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// WikiDom and serializers
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_require(pj('es', 'es.js'));
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_require(pj('es', 'es.Html.js'));
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_require(pj('es', 'serializers', 'es.AnnotationSerializer.js'));
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_require(pj('es', 'serializers', 'es.HtmlSerializer.js'));
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_require(pj('es', 'serializers', 'es.WikitextSerializer.js'));
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_require(pj('es', 'serializers', 'es.JsonSerializer.js'));
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// Preload the grammar file...
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PegParser.src = fs.readFileSync(path.join(basePath, 'parser', 'pegParser.pegjs.txt'), 'utf8');
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var parser = new PegParser();
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var testFileName = '../../../../phase3/tests/parser/parserTests.txt'; // default
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var testFileName2 = '../../../../tests/parser/parserTests.txt'; // Fallback. Not everyone fetch at phase3 level
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if (process.argv.length > 2) {
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// hack :D
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testFileName = process.argv[2];
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testFileName2 = null;
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console.log(testFileName);
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}
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try {
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var testParser = PEG.buildParser(fs.readFileSync('parserTests.pegjs', 'utf8'));
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} catch (e) {
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console.log(e);
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}
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var testFile;
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try {
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testFile = fs.readFileSync(testFileName, 'utf8');
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} catch (e) {
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// Try opening fallback file
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if( testFileName2 !== '' ) {
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try { testFile = fs.readFileSync( testFileName2, 'utf8' ); }
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catch(e) { console.log(e); }
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}
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}
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try {
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var cases = testParser.parse(testFile);
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} catch (e) {
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console.log(e);
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}
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var articles = {};
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function normalizeTitle(name) {
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if (typeof name !== 'string') {
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throw new Error('nooooooooo not a string');
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}
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name = name.replace(/[\s_]+/g, '_');
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name = name.substr(0, 1).toUpperCase() + name.substr(1);
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if (name === '') {
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throw new Error('Invalid/empty title');
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}
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return name;
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}
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function fetchArticle(name) {
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var norm = normalizeTitle(name);
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if (norm in articles) {
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return articles[norm];
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}
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}
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function processArticle(item) {
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var norm = normalizeTitle(item.title);
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articles[norm] = item.text;
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}
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function nodeToHtml(node) {
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return $('<div>').append(node).html();
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}
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var htmlparser = new HTML5.Parser();
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/* Normalize the expected parser output by parsing it using a HTML5 parser and
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* re-serializing it to HTML. Ideally, the parser would normalize inter-tag
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* whitespace for us. For now, we fake that by simply stripping all newlines.
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*/
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function normalizeHTML(source) {
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// TODO: Do not strip newlines in pre and nowiki blocks!
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source = source.replace(/\n/g, '');
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try {
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htmlparser.parse('<body>' + source + '</body>');
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return htmlparser.document
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.getElementsByTagName('body')[0]
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.innerHTML
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// a few things we ignore for now..
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.replace(/\/wiki\/Main_Page/g, 'Main Page')
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.replace(/(title|class|rel)="[^"]+"/g, '')
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.replace(/<a +href/g, '<a href')
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.replace(/" +>/g, '">');
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} catch(e) {
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console.log("normalizeHTML failed on" +
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source + " with the following error: " + e);
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console.trace();
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return source;
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}
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}
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// Specialized normalization of the wiki parser output, mostly to ignore a few
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// known-ok differences.
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function normalizeOut ( out ) {
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// TODO: Do not strip newlines in pre and nowiki blocks!
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return out.replace(/\n| data-[a-zA-Z]+="[^">]+"/g, '')
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.replace(/<!--.*?-->\n?/gm, '');
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}
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function formatHTML ( source ) {
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// Quick hack to insert newlines before some block level start tags
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return source.replace(/(?!^)<((div|dd|dt|li|p|table|tr|td|tbody|dl|ol|ul)[^>]*)>/g,
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'\n<$1>');
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}
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var passedTests = 0,
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failParseTests = 0,
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failTreeTests = 0,
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failOutputTests = 0;
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function processTest(item) {
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var tokenizer = new FauxHTML5.Tokenizer(),
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postProcessor = new DOMPostProcessor();
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if (!('title' in item)) {
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console.log(item);
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throw new Error('Missing title from test case.');
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}
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if (!('input' in item)) {
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console.log(item);
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throw new Error('Missing input from test case ' + item.title);
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}
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if (!('result' in item)) {
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console.log(item);
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throw new Error('Missing input from test case ' + item.title);
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}
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function printTitle() {
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console.log('=====================================================');
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console.log('FAILED: ' + item.title);
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console.log(item.comments.join('\n'));
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console.log("INPUT:");
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console.log(item.input + "\n");
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}
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parser.parseToTree(item.input + "\n", function(tokens, err) {
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if (err) {
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printTitle();
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failParseTests++;
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console.log('PARSE FAIL', err);
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} else {
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var environment = new MWParserEnvironment({
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tagHooks: {
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'ref': MWRefTagHook,
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'references': MWReferencesTagHook
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}
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});
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//var res = es.HtmlSerializer.stringify(tokens,environment);
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//console.log(JSON.stringify(tokens));
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// Build a DOM tree from tokens using the HTML tree
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// builder/parser.
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processTokens(tokens, tokenizer);
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// Perform post-processing on DOM.
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postProcessor.doPostProcess(tokenizer.parser.document);
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// And serialize the result.
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var out = tokenizer.parser.document
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.getElementsByTagName('body')[0]
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.innerHTML;
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if ( err ) {
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printTitle();
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failTreeTests++;
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console.log('RENDER FAIL', err);
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return;
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}
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var normalizedOut = normalizeOut(out);
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var normalizedExpected = normalizeHTML(item.result);
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if ( normalizedOut !== normalizedExpected ) {
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printTitle();
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failOutputTests++;
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console.log('RAW EXPECTED:');
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console.log(item.result + "\n");
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console.log('RAW RENDERED:');
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console.log(formatHTML(out) + "\n");
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var a = formatHTML(normalizedExpected);
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console.log('NORMALIZED EXPECTED:');
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console.log(a + "\n");
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var b = formatHTML(normalizedOut);
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console.log('NORMALIZED RENDERED:')
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console.log(formatHTML(normalizeOut(out)) + "\n");
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var patch = jsDiff.createPatch('wikitext.txt', a, b, 'before', 'after');
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console.log('DIFF:');
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console.log(patch.replace(/^[^\n]*\n[^\n]*\n[^\n]*\n[^\n]*\n/, ''));
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} else {
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passedTests++;
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console.log( 'PASSED: ' + item.title );
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}
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}
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});
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}
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function processTokens ( tokens, tokenizer ) {
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// push a body element, just to be sure to have one
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tokenizer.processToken({type: 'TAG', name: 'body'});
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// Process all tokens
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for (var i = 0, length = tokens.length; i < length; i++) {
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tokenizer.processToken(tokens[i]);
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}
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// And signal the end
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tokenizer.processToken({type: 'END'});
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}
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var comments = [];
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cases.forEach(function(item) {
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if (typeof item == 'object') {
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switch(item.type) {
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case 'article':
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//processArticle(item);
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break;
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case 'test':
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// Add comments to following test.
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item.comments = comments;
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comments = [];
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processTest(item);
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break;
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case 'comment':
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comments.push(item.comment);
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break;
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default:
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break;
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}
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}
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});
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console.log( "==========================================================");
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console.log( "SUMMARY: ");
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console.log( passedTests + " passed");
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console.log( failParseTests + " parse failures");
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console.log( failTreeTests + " tree build failures");
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console.log( failOutputTests + " output differences");
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console.log( "\n" + (failParseTests + failTreeTests + failOutputTests) + " total failures");
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console.log( "==========================================================");
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})();
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