feat(tests): Added unit tests for util functions

Author: brandonroberts

package.json

@@ -4,7 +4,8 @@
   "description": "A webpack loader for Angular that enables string-based module loading with the Angular Router",
   "main": "src/index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "mocha -R spec spec",
+    "test:watch": "npm run test -- -w"
   },
   "keywords": [
     "angular2",
@@ -24,5 +25,10 @@
   "repository": {
     "type": "git",
     "url": "git+https://github.com/brandonroberts/angular2-router-loader.git"
+  },
+  "devDependencies": {
+    "mocha": "^3.0.2",
+    "pmock": "^0.2.3",
+    "should": "^11.1.0"
   }
 }

spec/utils.spec.js

@@ -0,0 +1,102 @@
+var should = require('should');
+var utils = require('../src/utils');
+
+describe('Utils', function() {
+  var getRequireString = utils.getRequireString;
+
+  var path = 'path';
+  var name = 'name';
+
+  describe('getRequireString', function() {
+    it('should return a require statement', function() {
+      getRequireString(path, name).should.eql('require(\'path\')[\'name\']');
+    });
+  });
+
+  describe('getSyncLoader', function() {
+    var getSyncLoader = utils.getSyncLoader;
+
+    it('should return a synchronous require loadChildren statement', function() {
+      var result = [
+        'loadChildren: function() {\n',
+        '  return ' + getRequireString(path, name) + ';\n',
+        '}'
+      ];
+
+      getSyncLoader('path', 'name').should.eql(result.join(''));
+    });
+  });
+
+  describe('getRequireLoader', function() {
+    var getRequireLoader = utils.getRequireLoader;
+
+    it('should return an asynchronous require loadChildren statement', function() {
+      var result = [
+        'loadChildren: () => new Promise(function (resolve) {\n',
+        '  (require as any).ensure([], function (require) {\n',
+        '    resolve(' + getRequireString(path, name) + ');\n',
+        '  });\n',
+        '})'
+      ];
+
+      getRequireLoader('path', 'name').should.eql(result.join(''));
+    });
+  });
+
+  describe('getSystemLoader', function() {
+    var getSystemLoader = utils.getSystemLoader;
+
+    it('should return an asynchronous System.import loadChildren statement', function() {
+      var result = [
+        'loadChildren: () => System.import(\'' + path + '\')\n',
+        '  .then(function(module) {\n',
+        '    return module[\'' + name + '\'];\n',
+        '  })'
+      ];
+
+      getSystemLoader('path', 'name').should.eql(result.join(''));
+    });
+  });
+
+  describe('normalizeFilePath', function() {
+    var pmock = require('pmock');
+    var normalizeFilePath = utils.normalizeFilePath;
+    var env;
+
+    describe('for windows os', function() {
+      beforeEach(function() {
+        env = pmock.platform('win32');
+      });
+
+      it('should replace backslashes with forward slashes', function() {
+          normalizeFilePath('./path').should.eql('.\\\\path');
+      });
+
+      afterEach(function() {
+        env.reset();
+      });
+    });
+
+    describe('for non-windows os', function() {
+      beforeEach(function() {
+        env = pmock.platform('posix');
+      });
+
+      it('should not replace backslashes', function() {
+          normalizeFilePath('./path').should.eql('./path');
+      });
+
+      afterEach(function() {
+        env.reset();
+      });
+    });
+  });
+
+  describe('getFilename', function() {
+    var getFilename = utils.getFilename;
+
+    it('should return the filename for a given path without an extension', function() {
+      getFilename('path/to/module.ngfactory.ts').should.eql('module.ngfactory');
+    });
+  });
+});