(chore) : Added Headless Testing

.gitignore

@@ -5,3 +5,6 @@ p5soundnotes
 *.DS_Store
 .vscode
 lib/p5.*
+_karma_webpack_
+coverage/
+.nyc_output/*

Gruntfile.js

@@ -2,6 +2,22 @@ const webpackConfig = require('./webpack.config.js');
 
 module.exports = function(grunt) {
 
+  const mochaConfig = {
+    test: {
+      options: {
+        urls: [
+          'http://localhost:8000/test/headless-test.html',
+        ],
+        // reporter: reporter,
+        run: true,
+        log: true,
+        logErrors: true,
+        timeout: 100000,
+        growlOnSuccess: false
+      }
+    }
+  };
+
   grunt.initConfig({
     pkg: grunt.file.readJSON('package.json'),
     decomment: {
@@ -71,9 +87,15 @@ module.exports = function(grunt) {
         },
       'pre-commit':'lint-nofix' //runs elint in -nofix mode  before every git commit 
       }
-      }
+    },
+
+    mocha: mochaConfig,
+
+  mochaChrome: mochaConfig,
   });
 
+  grunt.loadTasks('./test/tasks');
+
 
   grunt.loadNpmTasks('grunt-webpack');
   grunt.loadNpmTasks('grunt-eslint');
@@ -88,4 +110,10 @@ module.exports = function(grunt) {
   grunt.registerTask('dev', ['eslint','connect','webpack:dev', 'decomment']);
   grunt.registerTask('serve', 'connect:server:keepalive');
   grunt.registerTask('run-tests', ['serve', 'open']);
+  grunt.registerTask('test', [
+    'connect',
+    'webpack:prod',
+    'mochaChrome',
+    // 'nyc:report'
+  ]);
 };

karma.conf.js

@@ -0,0 +1,156 @@
+// Karma configuration
+// Generated on Sun Aug 15 2021 13:31:00 GMT+0530 (India Standard Time)
+const path = require('path');
+
+module.exports = function (config) {
+  config.set({
+    // base path that will be used to resolve all patterns (eg. files, exclude)
+    basePath: 'test',
+
+    // frameworks to use
+    // available frameworks: https://www.npmjs.com/search?q=keywords:karma-adapter
+    frameworks: ['mocha', 'chai', 'sinon', 'webpack'],
+
+    // list of files / patterns to load in the browser
+    files: [
+      '../lib/p5.js',
+      '../lib/p5.sound.js',
+      './setup.js',
+      {
+        pattern: './testAudio/*.**',
+        watched: false,
+        included: false,
+        served: true,
+        nocache: false,
+      },
+
+      './tests/main.js',
+      './tests/p5.Helpers.js',
+      './tests/p5.PeakDetect.js',
+      './tests/p5.OnsetDetect.js',
+      './tests/p5.Distortion.js',
+      './tests/p5.AudioContext.js',
+      './tests/p5.Looper.js',
+      './tests/p5.Metro.js',
+      './tests/p5.Effect.js',
+      './tests/p5.Filter.js',
+      './tests/p5.Gain.js',
+      './tests/p5.FFT.js',
+      './tests/p5.SoundLoop.js',
+      './tests/p5.Compressor.js',
+      './tests/p5.EQ.js',
+      './tests/p5.AudioIn.js',
+      './tests/p5.AudioVoice.js',
+      './tests/p5.MonoSynth.js',
+      './tests/p5.PolySynth.js',
+      './tests/p5.SoundRecorder.js',
+      './tests/p5.SoundFile.js',
+      './tests/p5.Amplitude.js',
+      './tests/p5.Oscillator.js',
+      './tests/p5.Envelope.js',
+      './tests/p5.Pulse.js',
+      './tests/p5.Noise.js',
+      './tests/p5.Panner.js',
+      './tests/p5.Panner3d.js',
+      './tests/p5.Delay.js',
+      './tests/p5.Reverb.js',
+      './tests/p5.Listener3d.js',
+    ],
+    proxies: {
+      '/testAudio/': '/base/testAudio/',
+    },
+
+    // list of files / patterns to exclude
+    exclude: [],
+
+    plugins: [
+      require('karma-mocha'),
+      require('karma-chai'),
+      require('karma-sinon'),
+      require('karma-webpack'),
+      require('karma-chrome-launcher'),
+    ],
+
+    // preprocess matching files before serving them to the browser
+    // available preprocessors: https://www.npmjs.com/search?q=keywords:karma-preprocessor
+    preprocessors: {
+      // webpack as preprocessor
+      './tests/*.js': ['webpack'],
+    },
+
+    // test results reporter to use
+    // possible values: 'dots', 'progress'
+    // available reporters: https://www.npmjs.com/search?q=keywords:karma-reporter
+    reporters: ['progress'],
+
+    webpack: {
+      mode: 'development',
+      output: {
+        filename: '[name].js',
+        path: path.join(__dirname, '_karma_webpack_'),
+      },
+      stats: {
+        modules: false,
+        colors: true,
+      },
+      watch: false,
+      module: {
+        rules: [
+          {
+            test: /node_modules(\.*)/,
+            use: {
+              loader: 'uglify-loader',
+            },
+          },
+          {
+            test: /\.js$/,
+            exclude: /(node_modules)/,
+            use: {
+              loader: 'babel-loader',
+            },
+          },
+        ],
+      },
+    },
+    // web server port
+    port: 9876,
+
+    // enable / disable colors in the output (reporters and logs)
+    colors: true,
+
+    // level of logging
+    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
+    logLevel: config.LOG_INFO,
+
+    // enable / disable watching file and executing tests whenever any file changes
+    autoWatch: true,
+
+    // start these browsers
+    // available browser launchers: https://www.npmjs.com/search?q=keywords:karma-launcher
+    browsers: ['HeadlessChrome'],
+
+    // Continuous Integration mode
+    // if true, Karma captures browsers, runs the tests and exits
+    singleRun: false,
+
+    // Concurrency level
+    // how many browser instances should be started simultaneously
+    concurrency: Infinity,
+
+    customLaunchers: {
+      HeadlessChrome: {
+        base: 'ChromeHeadless',
+        flags: [
+          '--no-sandbox',
+          '--disable-setuid-sandbox',
+          '--autoplay-policy=no-user-gesture-required',
+          '--allow-file-access',
+          '--allow-file-access-from-files',
+          '--use-fake-ui-for-media-stream',
+          '--use-fake-device-for-media-stream',
+          '--use-file-for-fake-audio-capture=test/testAudio/drum.wav',
+        ],
+      },
+    },
+  });
+};