From 1b3fab7193b7b6c7bda547c12ed763ac144f210b Mon Sep 17 00:00:00 2001
From: Colton Padden <colton.padden@fastmail.com>
Date: Fri, 29 Oct 2021 11:45:01 -0400
Subject: [PATCH] Use mock-fs during createApp to prevent filesystem
 modifications

Signed-off-by: Colton Padden <colton.padden@fastmail.com>
---
 packages/create-app/src/createApp.test.ts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/packages/create-app/src/createApp.test.ts b/packages/create-app/src/createApp.test.ts
index b2d946f307..7b3b8f124c 100644
--- a/packages/create-app/src/createApp.test.ts
+++ b/packages/create-app/src/createApp.test.ts
@@ -15,12 +15,25 @@
  */
 
 import inquirer from 'inquirer';
+import mockFs from 'mock-fs';
+import path from 'path';
 import { Command } from 'commander';
 import * as tasks from './lib/tasks';
 import createApp from './createApp';
 
 jest.mock('./lib/tasks');
 
+beforeAll(() => {
+  mockFs({
+    'package.json': '', // required by `findPaths(__dirname)`
+    'templates/': mockFs.load(path.resolve(__dirname, '../templates/')),
+  });
+});
+
+afterAll(() => {
+  mockFs.restore();
+});
+
 const promptMock = jest.spyOn(inquirer, 'prompt');
 const checkPathExistsMock = jest.spyOn(tasks, 'checkPathExistsTask');
 const templatingMock = jest.spyOn(tasks, 'templatingTask');