Add ability to run QUnit tests

Point out there are no QUnit tests :-)
Add .jshintignore file

Change-Id: I02635b8620dda0110c04549724f50f561c5657fe
Note: See also 69034

.jshintignore

@@ -0,0 +1,2 @@
+tests/externals/
+modules/hooks.txt

scripts/qunit.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+echo "Running QUnit tests..."
+if command -v phantomjs > /dev/null ; then
+  URL=${MEDIAWIKI_URL:-"http://127.0.0.1:80/w/index.php/"}
+  echo "Using $URL as a development environment host."
+  echo "Please ensure \$wgEnableJavaScriptTest = true; in your LocalSettings.php"
+  echo "To specify a different host set MEDIAWIKI_URL environment variable"
+  echo '(e.g. by running "export MEDIAWIKI_URL=http://127.0.0.1:80/w/index.php/")'
+  phantomjs tests/externals/phantomjs-qunit-runner.js "${URL}Special:JavaScriptTest/qunit?filter=ext.echo"
+else
+  echo "You need to install PhantomJS to run QUnit tests in terminal!"
+  echo "See http://phantomjs.org/"
+  exit 1
+fi

tests/externals/phantomjs-qunit-runner.js

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+/*
+ * QtWebKit-powered headless test runner using PhantomJS
+ *
+ * PhantomJS binaries: http://phantomjs.org/download.html
+ * Requires PhantomJS 1.6+ (1.7+ recommended)
+ *
+ * Run with:
+ *   phantomjs runner.js [url-of-your-qunit-testsuite]
+ *
+ * e.g.
+ *   phantomjs runner.js http://localhost/qunit/test/index.html
+ */
+
+/*jshint latedef:false */
+/*global phantom:false, require:false, console:false, window:false, QUnit:false */
+
+(function() {
+	'use strict';
+
+	var args = require('system').args;
+
+	// arg[0]: scriptName, args[1...]: arguments
+	if (args.length !== 2) {
+		console.error('Usage:\n  phantomjs runner.js [url-of-your-qunit-testsuite]');
+		phantom.exit(1);
+	}
+
+	var url = args[1],
+		page = require('webpage').create();
+
+	// Route `console.log()` calls from within the Page context to the main Phantom context (i.e. current `this`)
+	page.onConsoleMessage = function(msg) {
+		console.log(msg);
+	};
+
+	page.onInitialized = function() {
+		page.evaluate(addLogging);
+	};
+
+	page.onCallback = function(message) {
+		var result,
+			failed;
+
+		if (message) {
+			if (message.name === 'QUnit.done') {
+				result = message.data;
+				failed = !result || result.failed;
+
+				phantom.exit(failed ? 1 : 0);
+			}
+		}
+	};
+
+	page.open(url, function(status) {
+		if (status !== 'success') {
+			console.error('Unable to access network: ' + status);
+			phantom.exit(1);
+		} else {
+			// Cannot do this verification with the 'DOMContentLoaded' handler because it
+			// will be too late to attach it if a page does not have any script tags.
+			var qunitMissing = page.evaluate(function() { return (typeof QUnit === 'undefined' || !QUnit); });
+			if (qunitMissing) {
+				console.error('The `QUnit` object is not present on this page.');
+				phantom.exit(1);
+			}
+
+			// Do nothing... the callback mechanism will handle everything!
+		}
+	});
+
+	function addLogging() {
+		window.document.addEventListener('DOMContentLoaded', function() {
+			var current_test_assertions = [];
+
+			QUnit.log(function(details) {
+				var response;
+
+				// Ignore passing assertions
+				if (details.result) {
+					return;
+				}
+
+				response = details.message || '';
+
+				if (typeof details.expected !== 'undefined') {
+					if (response) {
+						response += ', ';
+					}
+
+					response += 'expected: ' + details.expected + ', but was: ' + details.actual;
+					if (details.source) {
+						response += "\n" + details.source;
+					}
+				}
+
+				current_test_assertions.push('Failed assertion: ' + response);
+			});
+
+			QUnit.testDone(function(result) {
+				var i,
+					len,
+					name = result.module + ': ' + result.name;
+
+				if (result.failed) {
+					console.log('Test failed: ' + name);
+
+					for (i = 0, len = current_test_assertions.length; i < len; i++) {
+						console.log('    ' + current_test_assertions[i]);
+					}
+				}
+
+				current_test_assertions.length = 0;
+			});
+
+			QUnit.done(function(result) {
+				console.log('Took ' + result.runtime +  'ms to run ' + result.total + ' tests. ' + result.passed + ' passed, ' + result.failed + ' failed.');
+
+				if (typeof window.callPhantom === 'function') {
+					window.callPhantom({
+						'name': 'QUnit.done',
+						'data': result
+					});
+				}
+			});
+		}, false);
+	}
+})();