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build/node_modules/htmlparser2/test/test-helper.js

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+var htmlparser2 = require(".."),
+    fs = require("fs"),
+    path = require("path"),
+    assert = require("assert"),
+	Parser = htmlparser2.Parser,
+	CollectingHandler = htmlparser2.CollectingHandler;
+
+exports.writeToParser = function(handler, options, data){
+	var parser = new Parser(handler, options);
+	//first, try to run the test via chunks
+	for(var i = 0; i < data.length; i++){
+		parser.write(data.charAt(i));
+	}
+	parser.end();
+	//then parse everything
+	parser.parseComplete(data);
+};
+
+//returns a tree structure
+exports.getEventCollector = function(cb){
+	var handler = new CollectingHandler({onerror: cb, onend: onend});
+
+	return handler;
+
+	function onend(){
+		cb(null, handler.events.reduce(eventReducer, []));
+	}
+};
+
+function eventReducer(events, arr){
+	if(arr[0] === "onerror" || arr[0] === "onend");
+	else if(arr[0] === "ontext" && events.length && events[events.length - 1].event === "text"){
+		events[events.length - 1].data[0] += arr[1];
+	} else {
+		events.push({
+			event: arr[0].substr(2),
+			data: arr.slice(1)
+		});
+	}
+
+	return events;
+}
+
+function getCallback(expected, done){
+	var repeated = false;
+
+	return function(err, actual){
+		assert.ifError(err);
+		try {
+			assert.deepEqual(expected, actual, "didn't get expected output");
+		} catch(e){
+			e.expected = JSON.stringify(expected, null, 2);
+			e.actual = JSON.stringify(actual, null, 2);
+			throw e;
+		}
+
+		if(repeated) done();
+		else repeated = true;
+	};
+}
+
+exports.mochaTest = function(name, root, test){
+	describe(name, readDir);
+
+	function readDir(){
+		var dir = path.join(root, name);
+
+		fs
+		.readdirSync(dir)
+		.filter(RegExp.prototype.test, /^[^\._]/) //ignore all files with a leading dot or underscore
+		.map(function(name){
+			return path.join(dir, name);
+		})
+		.map(require)
+		.forEach(runTest);
+	}
+
+	function runTest(file){
+		it(file.name, function(done){
+			test(file, getCallback(file.expected, done));
+		});
+	}
+};