chore(new): add e2e test for ng new command

tests/e2e/tests/commands/new.ts

@@ -0,0 +1,45 @@
+import {deleteFile, deleteDir} from '../../utils/fs';
+import * as path from 'path';
+import {ng, git} from '../../utils/process';
+import {gitCommit} from '../../utils/git';
+
+export default function() {
+  const parentTestprojectDir = process.cwd();
+  const projectName = 'new-test-project';
+
+  return Promise.resolve()
+    // The test setup already creates a project, lets' clean that before running `ng new`
+    .then(() => removeSetupProject(parentTestprojectDir))
+
+    // Run `ng new`
+    .then(() => ng('new', projectName))
+    .then(() => process.chdir(path.join(parentTestprojectDir, projectName)))
+
+    // Try to run the unit tests.
+    .then(() => ng('test', '--single-run'))
+
+    // Run post-test steps whether test passes or fails
+    .then(prepareGitForTestCleanup, prepareGitForTestCleanup);
+}
+
+// Change the project inherited from Setup into normal
+//  non angular-cli project folder, so we can call `ng new`
+function removeSetupProject (parentTestprojectDir: string) {
+  return Promise.resolve()
+
+    // Change the project inherited from Setup into normal
+    //  non angular-cli project folder, so we can call `ng new`
+    .then(() => process.chdir(parentTestprojectDir))
+    .then(() => deleteDir('.git'))
+    .then(() => deleteFile('angular-cli.json'))
+    .then(() => deleteFile('package.json'));
+}
+
+// The post-test cleanup breaks if it doesn't have a git repository with a branch and a commit
+function prepareGitForTestCleanup() {
+  return Promise.resolve()
+    .then(() => git('config', 'user.email', 'angular-core+e2e@google.com'))
+    .then(() => git('config', 'user.name', 'Angular CLI E2e'))
+    .then(() => git('config', 'commit.gpgSign', 'false'))
+    .then(() => gitCommit('ng-new test'));
+}

tests/e2e/utils/fs.ts

@@ -57,6 +57,27 @@ export function createDir(path: string) {
   _recursiveMkDir(path);
 }
 
+export function deleteDir(path: string) {
+  return Promise.resolve()
+      .then(() => _recursiveRmDir(path));
+}
+
+// Based on http://stackoverflow.com/a/12761924/146656
+function _recursiveRmDir(path: string) {
+    if ( fs.existsSync(path) ) {
+        const files = fs.readdirSync(path);
+        files.forEach(function(file, index){
+            const curPath = path + '/' + file;
+            if (fs.lstatSync(curPath).isDirectory()) { // recurse
+                _recursiveRmDir(curPath);
+            } else { // delete file
+                fs.unlinkSync(curPath);
+            }
+        });
+        fs.rmdirSync(path);
+    }
+}
+
 
 function _recursiveMkDir(path: string) {
   if (fs.existsSync(path)) {