chore(new): change ng new e2e test to be specific for '--routing'...

Also fixes problem running that test on Windows

tests/e2e/tests/commands/new/new-routing.ts

@@ -0,0 +1,61 @@
+import * as path from 'path';
+import * as fs from 'fs';
+import {ng} from '../../../utils/process';
+import {deleteDir} from '../../../utils/fs';
+
+export default function() {
+  const parentTestProjectDir = process.cwd();
+  const ngNewProjectName = 'new-test-project';
+
+  return Promise.resolve()
+
+    // The test setup already creates a project, let's clean that before running `ng new`.
+    .then(() => disableTestSetupProject(parentTestProjectDir))
+
+    // Run `ng new` and tests...
+    .then(() => process.chdir(parentTestProjectDir))
+    .then(() => ng('new', ngNewProjectName, '--routing'))
+    .then(() => process.chdir(path.join(parentTestProjectDir, ngNewProjectName)))
+
+    // Try to run the unit tests.
+    .then(() => ng('test', '--single-run'))
+
+    // Revert disabling test-setup project, and prepare folder so test cleanup doesn't fail.
+    .then(() => prepareGitForTestCleanup(parentTestProjectDir, ngNewProjectName));
+}
+
+const angularCliPaths = ['.git', 'angular-cli.json', 'package.json'];
+const pathRenameSuffix = '.ng_new-backup';
+
+// Change the project inherited from Setup into normal
+//  non angular-cli project folder, so we can call `ng new`.
+function disableTestSetupProject (parentTestProjectDir: string) {
+  return Promise.resolve()
+    .then(() => process.chdir(parentTestProjectDir))
+
+    // Rename the files that define the folder as an angular-cli project
+    //  and that interfere with creating a child one.    
+    .then(() =>
+      angularCliPaths.forEach(pathname => {
+        const originalPath = path.join(parentTestProjectDir, pathname);
+        fs.rename(originalPath, originalPath + pathRenameSuffix);
+      })
+    );
+}
+
+function prepareGitForTestCleanup (parentTestProjectDir: string, projectName: string) {
+  return Promise.resolve()
+    // This is needed to unlock the folder created by our `ng new` call.
+    .then(() => process.chdir(parentTestProjectDir))
+
+    // The post-test cleanup breaks if there's another git project inside it.
+    .then(() => deleteDir(path.join(parentTestProjectDir, projectName)))
+
+    // Restore renamed files.
+    .then(() =>
+      angularCliPaths.forEach(pathname => {
+        const renamedPath = path.join(parentTestProjectDir, pathname) + pathRenameSuffix;
+        fs.rename(renamedPath, renamedPath.replace(pathRenameSuffix, ''));
+      })
+    );
+}