feat(init): generate test-main.(js/coffee) for RequireJS projects

lib/init.js

@@ -125,6 +125,13 @@ var questions = [{
         'Enter empty string to move to the next question.',
   multiple: true,
   validate: validatePattern
+}, {
+  id: 'generateTestMain',
+  question: 'Do you wanna generate a bootstrap file for RequireJS?',
+  hint: 'This will generate test-main.js/coffee that configures RequiseJS and starts the tests.',
+  options: ['no', 'yes'],
+  boolean: true,
+  condition: function(answers) {return answers.requirejs;}
 }, {
   id: 'includedFiles',
   question: 'Which files do you want to include with <script> tag ?',
@@ -133,7 +140,7 @@ var questions = [{
         'Enter empty string to move to the next question.',
   multiple: true,
   validate: validatePattern,
-  condition: function(answers) {return answers.requirejs;}
+  condition: function(answers) {return answers.requirejs && !answers.generateTestMain;}
 }, {
   id: 'autoWatch',
   question: 'Do you want Karma to watch all the files and run the tests on change ?',
@@ -166,14 +173,15 @@ var getBasePath = function(configFilePath, cwd) {
 };
 
 
-var processAnswers = function(answers, basePath) {
+var processAnswers = function(answers, basePath, testMainFile) {
 
   var processedAnswers = {
     basePath: basePath,
     files: answers.files,
     onlyServedFiles: [],
     exclude: answers.exclude,
     autoWatch: answers.autoWatch,
+    generateTestMain: answers.generateTestMain,
     browsers: answers.browsers,
     frameworks: [],
     preprocessors: {}
@@ -185,8 +193,12 @@ var processAnswers = function(answers, basePath) {
 
   if (answers.requirejs) {
     processedAnswers.frameworks.push('requirejs');
-    processedAnswers.files = answers.includedFiles;
+    processedAnswers.files = answers.includedFiles || [];
     processedAnswers.onlyServedFiles = answers.files;
+
+    if (answers.generateTestMain) {
+      processedAnswers.files.push(testMainFile);
+    }
   }
 
   var allPatterns = answers.files.concat(answers.includedFiles || []);
@@ -239,12 +251,20 @@ exports.init = function(config) {
   sm.process(questions, function(answers) {
     var cwd = process.cwd();
     var configFile = config.configFile || 'karma.conf.js';
+    var testMainFile = (/\.coffee$/).test(configFile) ? 'test-main.coffee' : 'test-main.js';
     var formatter = formatters.createForPath(configFile);
-    var processedAnswers = processAnswers(answers, getBasePath(configFile, cwd));
+    var processedAnswers = processAnswers(answers, getBasePath(configFile, cwd), testMainFile);
     var configFilePath = path.resolve(cwd, configFile);
+    var testMainFilePath = path.resolve(cwd, testMainFile);
 
-    formatter.writeConfigFile(configFilePath, processedAnswers);
+    if (processedAnswers.generateTestMain) {
+      formatter.writeRequirejsConfigFile(testMainFilePath);
+      console.log(colorScheme.success(
+        'RequireJS bootstrap file generated at "' + testMainFilePath + '".\n'
+      ));
+    }
 
+    formatter.writeConfigFile(configFilePath, processedAnswers);
     console.log(colorScheme.success('Config file generated at "' + configFilePath + '".\n'));
   });
 };

lib/init/formatters.js

@@ -3,6 +3,8 @@ var util = require('util');
 
 var JS_TEMPLATE_PATH = __dirname + '/../../config.tpl.js';
 var COFFEE_TEMPLATE_PATH = __dirname + '/../../config.tpl.coffee';
+var JS_REQUIREJS_TEMPLATE_PATH = __dirname + '/../../requirejs.config.tpl.js';
+var COFFEE_REQUIREJS_TEMPLATE_PATH = __dirname + '/../../requirejs.config.tpl.coffee';
 var COFFEE_REGEXP = /\.coffee$/;
 var LIVE_TEMPLATE_PATH = __dirname + '/../../config.tpl.ls';
 var LIVE_REGEXP = /\.ls$/;
@@ -35,6 +37,7 @@ var JavaScriptFormatter = function() {
   };
 
   this.TEMPLATE_FILE_PATH = JS_TEMPLATE_PATH;
+  this.REQUIREJS_TEMPLATE_FILE = JS_REQUIREJS_TEMPLATE_PATH;
 
   this.formatFiles = function(includedFiles, onlyServedFiles) {
     var files = includedFiles.map(quote);
@@ -84,12 +87,22 @@ var JavaScriptFormatter = function() {
   this.writeConfigFile = function(path, answers) {
     fs.writeFileSync(path, this.generateConfigFile(answers));
   };
+
+  this.generateRequirejsConfigFile = function () {
+    var template = fs.readFileSync(this.REQUIREJS_TEMPLATE_FILE).toString();
+    return template;
+  };
+
+  this.writeRequirejsConfigFile = function (path) {
+    fs.writeFileSync(path, this.generateRequirejsConfigFile());
+  };
 };
 
 var CoffeeFormatter = function() {
   JavaScriptFormatter.call(this);
 
   this.TEMPLATE_FILE_PATH = COFFEE_TEMPLATE_PATH;
+  this.REQUIREJS_TEMPLATE_FILE = COFFEE_REQUIREJS_TEMPLATE_PATH;
 };
 
 var LiveFormatter = function() {

requirejs.config.tpl.coffee

@@ -0,0 +1,19 @@
+allTestFiles = []
+TEST_REGEXP = /(spec|test)(\.coffee)?(\.js)?$/i
+pathToModule = (path) ->
+  path.replace(/^\/base\//, "").replace(/\.js$/, "").replace(/\.cofee$/, "")
+
+Object.keys(window.__karma__.files).forEach (file) ->
+  # Normalize paths to RequireJS module names.
+  allTestFiles.push pathToModule(file)  if TEST_REGEXP.test(file)
+  return
+
+require.config
+  # Karma serves files under /base, which is the basePath from your config file
+  baseUrl: "/base"
+
+  # dynamically load all test files
+  deps: allTestFiles
+
+  # we have to kickoff jasmine, as it is asynchronous
+  callback: window.__karma__.start

requirejs.config.tpl.js

@@ -0,0 +1,24 @@
+var allTestFiles = [];
+var TEST_REGEXP = /(spec|test)\.js$/i;
+
+var pathToModule = function(path) {
+  return path.replace(/^\/base\//, '').replace(/\.js$/, '');
+};
+
+Object.keys(window.__karma__.files).forEach(function(file) {
+  if (TEST_REGEXP.test(file)) {
+    // Normalize paths to RequireJS module names.
+    allTestFiles.push(pathToModule(file));
+  }
+});
+
+require.config({
+  // Karma serves files under /base, which is the basePath from your config file
+  baseUrl: '/base',
+
+  // dynamically load all test files
+  deps: allTestFiles,
+
+  // we have to kickoff jasmine, as it is asynchronous
+  callback: window.__karma__.start
+});

test/unit/init.spec.coffee

@@ -184,6 +184,10 @@ describe 'init', ->
 
       # excludes
       machine.onLine ''
+      machine.onLine ''
+
+      # generate test-main
+      machine.onLine 'no'
 
       # included files
       machine.onLine 'test/main.js'
@@ -193,6 +197,50 @@ describe 'init', ->
       machine.onLine 'yes'
 
 
+    it 'should generate the test-main for requirejs', (done) ->
+      machine.process m.questions, (answers) ->
+        basePath = m.getBasePath '../karma.conf.js', '/some/path'
+        processedAnswers = m.processAnswers answers, basePath, 'test-main.js'
+        generatedConfigCode = formatter.generateConfigFile processedAnswers
+        config = evaluateConfigCode generatedConfigCode
+
+        # expect correct processedAnswers
+        expect(processedAnswers.generateTestMain).to.be.ok
+        expect(processedAnswers.files).to.contain 'test-main.js'
+
+        # expect correct configuration
+        expect(config.frameworks).to.contain 'requirejs'
+        for pattern in config.files.slice(1)
+          expect(pattern.included).to.equal false
+        done()
+
+      # frameworks
+      machine.onLine 'jasmine'
+      machine.onLine ''
+
+      # requirejs
+      machine.onLine 'yes'
+
+      # browsers
+      machine.onLine 'Chrome'
+      machine.onLine ''
+
+      # files
+      machine.onLine 'src/**/*.js'
+      machine.onLine 'test/**/*.js'
+      machine.onLine ''
+
+      # excludes
+      machine.onLine ''
+      machine.onLine ''
+
+      # generate test-main
+      machine.onLine 'yes'
+
+      # autoWatch
+      machine.onLine 'yes'
+
+
     it 'should add coffee preprocessor', (done) ->
       machine.process m.questions, (answers) ->
         basePath = m.getBasePath 'karma.conf.js', '/cwd'