67 lines
2.6 KiB
JavaScript
67 lines
2.6 KiB
JavaScript
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'use strict';
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/*
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* run-test-using-node.js - Run the cs142 project #2 test code using Node.js rather than in the
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* browser. The browser has a better debugging environment so this is more a demonstration that the
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* JavaScript works in both places. To run the test:
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* node run-tests-using-node.js
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*/
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/* jshint node: true */
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// We need the Node.js file system access module (fs) and the Node.js JavaScript virtual machine
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// access.
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var fs = require('fs');
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var vm = require('vm');
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// Build an emulation of the browser's script tag processing where everything is in a global
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// space and goes under the name window.
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global.window = global; // The browser script assume global is available under the name window
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/**
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* processScriptFromFile - Emulate the effects of a script tag in the browser by running the
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* contents of the file as a script with its scope being the global object.
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* @param {string} filename - File name of script to load and run.
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*/
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function processScriptFromFile(filename) {
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// Warning: Ugly, un-Node.js-like code warning:
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// In order to emulate the browser JavaScript environment we need to undo the default isolation
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// in node modules. By directly calling into the Node.js vm.Script() API we can have
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// all the JavaScripts files run in the same context like on the browser.
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try {
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new vm.Script(fs.readFileSync(filename).toString(), {filename: filename}).runInThisContext();
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} catch (err) {
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// fs.readFileSync communicates errors using exceptions. We log but otherwise ignore errors
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console.error('Error processing', filename, ':', err.message);
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}
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}
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console.log('*********** Running cs142 Project #2 tests ***********');
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var startingGlobalProperties = Object.keys(global);
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console.log('*** Loading project files ....');
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processScriptFromFile('./cs142-make-multi-filter.js');
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processScriptFromFile('./cs142-template-processor.js');
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console.log('*** Running tests ....');
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processScriptFromFile('./cs142-test-project2.js');
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var p1Message = global.cs142Project2Results.p1Message;
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var p2Message = global.cs142Project2Results.p2Message;
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var p3Message = global.cs142Project2Results.p3Message;
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var testWorked = (p1Message === 'SUCCESS') && (p2Message === 'SUCCESS') &&
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(p3Message === 'SUCCESS');
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console.log('*********** Running cs142 Project #2 tests ***********:',
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testWorked ? 'Success' : 'Fail');
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var endingGlobalProperties = Object.keys(global);
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var arrayDiff = function(a,b) {
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return b.filter(function(i) {return a.indexOf(i) < 0;}).concat(a.filter(function(i) {return b.indexOf(i) < 0;}));
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};
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process.exit(Number(!testWorked)); // For npm: Return process status code 0 on success, 1 on failure.
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