test: convert helpers to typescript

Author: clydin

tests/helpers/index.ts

@@ -1,21 +1,19 @@
-const ng: ((parameters: string[]) => Promise<any>) = require('./ng');
-const tmp = require('./tmp');
+import { ng } from './ng';
+import { setup, teardown } from './tmp';
+
+export { ng };
 
 export function setupProject() {
   beforeEach((done) => {
     spyOn(console, 'error');
 
-    tmp.setup('./tmp')
+    setup('./tmp')
       .then(() => process.chdir('./tmp'))
       .then(() => ng(['new', 'foo', '--skip-install']))
       .then(done, done.fail);
   }, 10000);
 
   afterEach((done) => {
-    tmp.teardown('./tmp').then(done, done.fail);
+    teardown('./tmp').then(done, done.fail);
   });
 }
-
-export {
-  ng
-};

tests/helpers/ng.js

@@ -1,18 +1,16 @@
-'use strict';
-
+import cli from '@angular/cli/lib/cli';
 const UI = require('@angular/cli/ember-cli/lib/ui');
 const through = require('through');
 
-module.exports = MockUI;
 function MockUI() {
   this.output = '';
 
   UI.call(this, {
     inputStream: through(),
-    outputStream: through(function (data) {
+    outputStream: through(function (data: any) {
       this.output += data;
     }.bind(this)),
-    errorStream: through(function (data) {
+    errorStream: through(function (data: any) {
       this.errors += data;
     }.bind(this))
   });
@@ -23,3 +21,15 @@ MockUI.prototype.constructor = MockUI;
 MockUI.prototype.clear = function () {
   this.output = '';
 };
+
+export function ng(args: any) {
+  process.env.PWD = process.cwd();
+
+  return cli({
+    inputStream: [],
+    outputStream: [],
+    cliArgs: args,
+    UI: MockUI,
+    testing: true
+  });
+}

tests/helpers/mock-ui.js renamed to tests/helpers/ng.ts

@@ -1,18 +1,16 @@
-'use strict';
-
-const fs = require('fs-extra');
+import * as fs from 'fs-extra';
 
 const root = process.cwd();
 
-module.exports.setup = function (path) {
+export function setup(path: string) {
   process.chdir(root);
 
   return fs.remove(path).then(function () {
     fs.mkdirsSync(path);
   });
 };
 
-module.exports.teardown = function (path) {
+export function teardown(path: string) {
   process.chdir(root);
 
   if (fs.pathExistsSync(path)) {