refactor(app): Simplify subgenerator code

Add a common function in the base script to simplify the common tasks
for many of the generators (services, filter, directive, controller).
Also remove some unused modules from the sub-generators (path and angularUtils).

constant/index.js

@@ -1,8 +1,6 @@
 'use strict';
-var path = require('path');
 var util = require('util');
 var ScriptBase = require('../script-base.js');
-var angularUtils = require('../util.js');
 
 
 var Generator = module.exports = function Generator() {
@@ -12,7 +10,5 @@ var Generator = module.exports = function Generator() {
 util.inherits(Generator, ScriptBase);
 
 Generator.prototype.createServiceFiles = function createServiceFiles() {
-  this.appTemplate('service/constant', 'scripts/services/' + this.name);
-  this.testTemplate('spec/service', 'services/' + this.name);
-  this.addScriptToIndex('services/' + this.name);
+  this.generateSourceAndTest('service/constant', 'spec/service', 'services');
 };

controller/index.js

@@ -1,5 +1,4 @@
 'use strict';
-var path = require('path');
 var util = require('util');
 var ScriptBase = require('../script-base.js');
 
@@ -17,7 +16,5 @@ var Generator = module.exports = function Generator() {
 util.inherits(Generator, ScriptBase);
 
 Generator.prototype.createControllerFiles = function createControllerFiles() {
-  this.appTemplate('controller', 'scripts/controllers/' + this.name);
-  this.testTemplate('spec/controller', 'controllers/' + this.name);
-  this.addScriptToIndex('controllers/' + this.name);
+  this.generateSourceAndTest('controller', 'spec/controller', 'controllers');
 };

directive/index.js

@@ -1,8 +1,6 @@
 'use strict';
-var path = require('path');
 var util = require('util');
 var ScriptBase = require('../script-base.js');
-var angularUtils = require('../util.js');
 
 
 var Generator = module.exports = function Generator() {
@@ -12,7 +10,5 @@ var Generator = module.exports = function Generator() {
 util.inherits(Generator, ScriptBase);
 
 Generator.prototype.createDirectiveFiles = function createDirectiveFiles() {
-  this.appTemplate('directive', 'scripts/directives/' + this.name);
-  this.testTemplate('spec/directive', 'directives/' + this.name);
-  this.addScriptToIndex('directives/' + this.name);
+  this.generateSourceAndTest('directive', 'spec/directive', 'directives');
 };

factory/index.js

@@ -1,8 +1,6 @@
 'use strict';
-var path = require('path');
 var util = require('util');
 var ScriptBase = require('../script-base.js');
-var angularUtils = require('../util.js');
 
 
 var Generator = module.exports = function Generator() {
@@ -12,7 +10,5 @@ var Generator = module.exports = function Generator() {
 util.inherits(Generator, ScriptBase);
 
 Generator.prototype.createServiceFiles = function createServiceFiles() {
-  this.appTemplate('service/factory', 'scripts/services/' + this.name);
-  this.testTemplate('spec/service', 'services/' + this.name);
-  this.addScriptToIndex('services/' + this.name);
+  this.generateSourceAndTest('service/factory', 'spec/service', 'services');
 };

filter/index.js

@@ -1,8 +1,6 @@
 'use strict';
-var path = require('path');
 var util = require('util');
 var ScriptBase = require('../script-base.js');
-var angularUtils = require('../util.js');
 
 
 var Generator = module.exports = function Generator() {
@@ -12,7 +10,5 @@ var Generator = module.exports = function Generator() {
 util.inherits(Generator, ScriptBase);
 
 Generator.prototype.createFilterFiles = function createFilterFiles() {
-  this.appTemplate('filter', 'scripts/filters/' + this.name);
-  this.testTemplate('spec/filter', 'filters/' + this.name);
-  this.addScriptToIndex('filters/' + this.name);
+  this.generateSourceAndTest('filter', 'spec/filter', 'filters');
 };

package.json

@@ -36,6 +36,7 @@
     "load-grunt-tasks": "~0.1.0",
     "marked": "~0.2.8",
     "semver": "~2.1.0",
+    "underscore.string": "~2.3.1",
     "grunt-release": "~0.5.1"
   },
   "engines": {

provider/index.js

@@ -1,8 +1,6 @@
 'use strict';
-var path = require('path');
 var util = require('util');
 var ScriptBase = require('../script-base.js');
-var angularUtils = require('../util.js');
 
 
 var Generator = module.exports = function Generator() {
@@ -12,7 +10,5 @@ var Generator = module.exports = function Generator() {
 util.inherits(Generator, ScriptBase);
 
 Generator.prototype.createServiceFiles = function createServiceFiles() {
-  this.appTemplate('service/provider', 'scripts/services/' + this.name);
-  this.testTemplate('spec/service', 'services/' + this.name);
-  this.addScriptToIndex('services/' + this.name);
+  this.generateSourceAndTest('service/provider', 'spec/service', 'services');
 };

script-base.js

@@ -98,3 +98,9 @@ Generator.prototype.addScriptToIndex = function (script) {
     console.log('\nUnable to find '.yellow + fullPath + '. Reference to '.yellow + script + '.js ' + 'not added.\n'.yellow);
   }
 };
+
+Generator.prototype.generateSourceAndTest = function (appTemplate, testTemplate, targetDirectory) {
+  this.appTemplate(appTemplate, path.join('scripts', targetDirectory, this.name));
+  this.testTemplate(testTemplate, path.join(targetDirectory, this.name));
+  this.addScriptToIndex(path.join(targetDirectory, this.name));
+};

service/index.js

@@ -1,8 +1,6 @@
 'use strict';
-var path = require('path');
 var util = require('util');
 var ScriptBase = require('../script-base.js');
-var angularUtils = require('../util.js');
 
 
 var Generator = module.exports = function Generator() {
@@ -12,7 +10,5 @@ var Generator = module.exports = function Generator() {
 util.inherits(Generator, ScriptBase);
 
 Generator.prototype.createServiceFiles = function createServiceFiles() {
-  this.appTemplate('service/service', 'scripts/services/' + this.name);
-  this.testTemplate('spec/service', 'services/' + this.name);
-  this.addScriptToIndex('services/' + this.name);
+  this.generateSourceAndTest('service/service', 'spec/service', 'services');
 };

test/test-file-creation.js

@@ -6,7 +6,7 @@ var path = require('path');
 var util = require('util');
 var generators = require('yeoman-generator');
 var helpers = require('yeoman-generator').test;
-
+var _ = require('underscore.string');
 
 describe('Angular generator', function () {
   var angular;
@@ -101,26 +101,93 @@ describe('Angular generator', function () {
     });
   });
 
+  /**
+   * Generic test function that can be used to cover the scenarios where a generator is creating both a source file
+   * and a test file. The function will run the respective generator, and then check for the existence of the two
+   * generated files. A RegExp check is done on each file, checking for the generated content with a pattern.
+   *
+   * The number of parameters is quite huge due to the many options in which the generated files differ,
+   * e.g. Services start with an upper case letter, whereas filters, directives or constants start with a lower case
+   * letter.
+   *
+   * The generated items all use the dummy name 'foo'.
+   *
+   * @param generatorType The type of generator to run, e.g. 'filter'.
+   * @param specType The type of the generated spec file, e.g. 'service' - all service types (constant, value, ...)
+   *    use the same Service spec template.
+   * @param targetDirectory The directory into which the files are generated, e.g. 'directives' - this will be
+   *    located under 'app/scripts' for the sources and 'test/spec' for the tests.
+   * @param scriptNameFn The function used to create the name of the created item, e.g. _.classify to generate 'Foo',
+   *    or _.camelize to generate 'foo'.
+   * @param specNameFn Same as scriptNameFn, but for the describe text used in the Spec file. Some generators use
+   *    _.classify, others use _.camelize.
+   * @param suffix An optional suffix to be appended to the generated item name, e.g. 'Ctrl' for controllers, which
+   *    will generate 'FooCtrl'.
+   * @param done The done function.
+   */
+  function generatorTest(generatorType, specType, targetDirectory, scriptNameFn, specNameFn, suffix, done) {
+    var angularGenerator;
+    var name = 'foo';
+    var deps = [path.join('../..', generatorType)];
+    angularGenerator = helpers.createGenerator('angular:' + generatorType, deps, [name]);
+
+    helpers.mockPrompt(angular, {
+      bootstrap: true,
+      compassBoostrap: true,
+      modules: []
+    });
+    angular.run([], function (){
+      angularGenerator.run([], function () {
+        helpers.assertFiles([
+          [path.join('app/scripts', targetDirectory, name + '.js'), new RegExp(generatorType + '\\(\'' + scriptNameFn(name) + suffix + '\'', 'g')],
+          [path.join('test/spec', targetDirectory, name + '.js'), new RegExp('describe\\(\'' + _.classify(specType) + ': ' + specNameFn(name) + suffix + '\'', 'g')]
+        ]);
+        done();
+      });
+    });
+  }
+
   describe('Controller', function () {
     it('should generate a new controller', function (done) {
-      var angularCtrl;
-      var deps = ['../../controller'];
-      angularCtrl = helpers.createGenerator('angular:controller', deps, ['foo']);
+      generatorTest('controller', 'controller', 'controllers', _.classify, _.classify, 'Ctrl', done);
+    });
+  });
 
-      helpers.mockPrompt(angular, {
-        bootstrap: true,
-        compassBoostrap: true,
-        modules: []
-      });
-      angular.run([], function () {
-        angularCtrl.run([], function () {
-          helpers.assertFiles([
-            ['app/scripts/controllers/foo.js', /controller\('FooCtrl'/],
-            ['test/spec/controllers/foo.js', /describe\('Controller: FooCtrl'/]
-          ]);
-          done();
-        });
-      });
+  describe('Directive', function () {
+    it('should generate a new directive', function (done) {
+      generatorTest('directive', 'directive', 'directives', _.camelize, _.camelize, '', done);
+    });
+  });
+
+  describe('Filter', function () {
+    it('should generate a new filter', function (done) {
+      generatorTest('filter', 'filter', 'filters', _.camelize, _.camelize, '', done);
+    });
+  });
+
+  describe('Service', function () {
+    function serviceTest (generatorType, nameFn, done) {
+      generatorTest(generatorType, 'service', 'services', nameFn, _.classify, '', done);
+    };
+
+    it('should generate a new constant', function (done) {
+      serviceTest('constant', _.camelize, done);
+    });
+
+    it('should generate a new service', function (done) {
+      serviceTest('service', _.classify, done);
+    });
+
+    it('should generate a new factory', function (done) {
+      serviceTest('factory', _.camelize, done);
+    });
+
+    it('should generate a new provider', function (done) {
+      serviceTest('provider', _.camelize, done);
+    });
+
+    it('should generate a new value', function (done) {
+      serviceTest('value', _.camelize, done);
     });
   });
 

value/index.js

@@ -1,8 +1,6 @@
 'use strict';
-var path = require('path');
 var util = require('util');
 var ScriptBase = require('../script-base.js');
-var angularUtils = require('../util.js');
 
 
 var Generator = module.exports = function Generator() {
@@ -12,7 +10,5 @@ var Generator = module.exports = function Generator() {
 util.inherits(Generator, ScriptBase);
 
 Generator.prototype.createServiceFiles = function createServiceFiles() {
-  this.appTemplate('service/value', 'scripts/services/' + this.name);
-  this.testTemplate('spec/service', 'services/' + this.name);
-  this.addScriptToIndex('services/' + this.name);
+  this.generateSourceAndTest('service/value', 'spec/service', 'services');
 };