我们在Angular中使用了nrwl-nx。在这种情况下，我们可以使用这个命令:

npm test <ng-project> -- --testFile "file-name-part"

注:

npm test will run the test script specified in package.json: "test": "ng test" --: tells npm to pass the following parameters to the test script (instead of consuming them) Thus the rest of the cmd will be passed to ng test <ng-project> is the name of a project in angular.json when you omit this parameter, the "defaultProject" (specified in angular.json) will be used (so you must specify it, when the test is not in your default project) Next we must check which builder is used: In angular.json navigate to "project" - "<ng-project>" - "architect" - "test" and check the "builder", which in our case is: "@nrwl/jest:jest" Now that we know the builder, we need to find the available cmd-line parameters On the command line, run npm test <ng-project> -- --help to see all available options Or check the online documentation One of the options is --testFile which is used here

一个简单可行的解决方案:

yarn test -g文件名或

npm test -g fileName

例子:

yarn test -g cancelTransaction或

取消事务

关于测试过滤器的更多信息:

Test Filters
--fgrep, -f Only run tests containing this string [string]
--grep, -g Only run tests matching this string or regexp [string]
--invert, -i Inverts --grep and --fgrep matches [boolean]

如果你用的是纱线，就这样做

yarn test nameofthefile

eg:

yarn test file.test.js

这就是如何在不重新启动测试的情况下动态地运行特定文件上的测试。

我的React项目创建为create-react-app。

所以它会监视测试的变化，当我做出改变时自动运行测试。

这就是我在终端中看到的测试结果:

Test Suites: 16 passed, 16 total
Tests:       98 passed, 98 total
Snapshots:   0 total
Time:        5.048s
Ran all test suites.

Watch Usage: Press w to show more.

按W

Watch Usage
 › Press f to run only failed tests.
 › Press o to only run tests related to changed files.
 › Press q to quit watch mode.
 › Press p to filter by a filename regex pattern.
 › Press t to filter by a test name regex pattern.
 › Press Enter to trigger a test run.

然后按P

Pattern Mode Usage
 › Press Esc to exit pattern mode.
 › Press Enter to filter by a filenames regex pattern.

 pattern ›

 Start typing to filter by a filename regex pattern.

这是在我想运行'Login'文件夹中的'index.es6.js'文件之后:

Pattern Mode Usage
 › Press Esc to exit pattern mode.
 › Press Enter to filter by a filenames regex pattern.

 pattern › login/index

 Pattern matches 1 file
 › src/containers/Login/index.es6.test.js

这就是我在特定文件上运行测试的方法。

至少从2019年开始:

NPM test——bar.spec.js

2015年:

为了运行特定的测试，您需要使用jest命令。NPM测试无效。要在命令行上直接访问jest，可以通过npm i -g jest-cli或yarn global add jest-cli安装它。

然后使用jest bar.spec.js运行特定的测试。

注意:您不必输入测试文件的完整路径。参数被解释为正则表达式。完整路径的任何部分都可以唯一地标识一个文件。

我只是将Jest安装为全局，运行Jest myFileToTest.spec.js，它工作了。