cirandas.net

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/*
 * PhantomJS Runner QUnit Plugin 1.2.0
 *
 * 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
 */

/*global phantom:false, require:false, console:false, window:false, QUnit:false */

(function() {
	'use strict';

	var url, page, timeout,
		args = require('system').args;

	// arg[0]: scriptName, args[1...]: arguments
	if (args.length < 2 || args.length > 3) {
		console.error('Usage:\n  phantomjs runner.js [url-of-your-qunit-testsuite] [timeout-in-seconds]');
		phantom.exit(1);
	}

	url = args[1];
	page = require('webpage').create();
	if (args[2] !== undefined) {
		timeout = parseInt(args[2], 10);
	}

	// 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.total || result.failed;

				if (!result.total) {
					console.error('No tests were executed. Are you loading tests asynchronously?');
				}

				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);
			}

			// Set a timeout on the test running, otherwise tests with async problems will hang forever
			if (typeof timeout === 'number') {
				setTimeout(function() {
					console.error('The specified timeout of ' + timeout + ' seconds has expired. Aborting...');
					phantom.exit(1);
				}, timeout * 1000);
			}

			// Do nothing... the callback mechanism will handle everything!
		}
	});

	function addLogging() {
		window.document.addEventListener('DOMContentLoaded', function() {
			var currentTestAssertions = [];

			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;
				}

				currentTestAssertions.push('Failed assertion: ' + response);
			});

			QUnit.testDone(function(result) {
				var i,
					len,
					name = '';

				if (result.module) {
					name += result.module + ': ';
				}
				name += result.name;

				if (result.failed) {
					console.log('\n' + 'Test failed: ' + name);

					for (i = 0, len = currentTestAssertions.length; i < len; i++) {
						console.log('    ' + currentTestAssertions[i]);
					}
				}

				currentTestAssertions.length = 0;
			});

			QUnit.done(function(result) {
				console.log('\n' + '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);
	}
})();