问题描述
更新:我的用例主要是在CI上运行测试，但是我通常想覆盖默认的CRA Jest参数.
我正在使用 Jest 进行测试://github.com/facebookincubator/create-react-app"rel =" noreferrer>创建React App .它总是启动为交互模式:
I'm running tests using the Jest, config that came with Create React App. It always launches into the interactive mode:
› Press a to run all tests.
› Press o to only run tests related to changed files.
› Press p to filter by a filename regex pattern.
› Press q to quit watch mode.
› Press Enter to trigger a test run.
但是我不希望它等待我的输入.我希望它运行一次然后终止.我尝试使用--bail或--no-watchman开关，但它仍以交互模式启动.
But I don't want it to wait for my input. I want it to run once and then terminate. I tried using the --bail or --no-watchman switches but it still launches in interactive mode.
如果我全局安装了jest，并在我的项目的根目录中运行它，它将执行一次并完成(如我所愿).但是当我运行npm test而又运行react-scripts test时，即使我没有通过--watch，它也会进入监视模式.
If I globally install jest, and run it in the root of my project, it executes once and finish (just as I want). But when I run npm test which runs react-scripts test, it goes into the watch mode even when I'm not passing --watch.
更新:我还在 CRA 上提出了问题.
Update: I've also filed an issue on CRA.
推荐答案
CRA查找CI环境变量，如果它存在则不在监视模式下运行.
CRA looks for a CI environment variable, if its present it doesn't run in watch mode.
CI=true npm test应该可以满足您的需求
CI=true npm test should do what you are looking for
更新对于非CI，例如在本地运行测试，可以从[email protected]传递--no-watch标志:
UPDATEFor non-ci, eg running tests locally, from [email protected] you can pass a --no-watch flag:
npm test --no-watch
这篇关于在非交互模式下运行CRA Jest的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！