正如在其他答案中提到的，测试。仅过滤掉同一文件中的其他测试。因此其他文件中的测试仍将运行。

因此，要运行单个测试，有两种方法:

选项1:如果您的测试名称是唯一的，您可以在监视模式下输入t，并输入您想要运行的测试的名称。 选项2: 在监视模式下点击p，为您想运行的文件名输入一个正则表达式。(在监视模式下运行Jest时会显示类似的相关命令)。 换成它。只在您想要运行的测试中使用。

使用上述任何一种方法，Jest都将只运行您指定的文件中的单个测试。

你可以尝试使用下面的命令，因为它对我有用

npm run test -- -t 'Your test name'

或者你可以像下面这样在测试中添加.only，然后运行npm run test命令

it.only('Your test name', () => {})

NPM test __tests__/filename.test。t -运行单个文件。

测试。only('check single test'， () => {expect(true).toBe(true)});-运行单个测试用例

测试。skip('跳过testcase， () => {expect(false).toBe(false_});-跳过一个测试用例

Jest文档建议如下:

如果测试失败，首先要检查的事情之一应该是 当测试是唯一运行的测试时，测试是否失败。在开玩笑 只运行一个测试很简单——只是临时更改该测试 命令到test.only

test.only('this will be the only test that runs', () => {
   expect(true).toBe(false);
});

or

it.only('this will be the only test that runs', () => {
   expect(true).toBe(false);
});

在检查了Jest CLI文档之后，我发现这就是我们在特定文件中运行特定测试的方式。

jest --findRelatedTests path/to/fileA.js path/to/fileB.js -t "test name"

纱,

yarn test --findRelatedTests path/to/fileA.js path/to/fileB.js -t "test name"

npm,

npm test -- --findRelatedTests path/to/fileA.js path/to/fileB.js -t "test name"

如需参考，请检查Jest Cli选项

以下是我的看法:

./node_modules/.bin/jest --config test/jest-unit-config.json --runInBand src/components/OpenForm/OpenForm.spec.js -t 'show expanded'

注:

./node_modules/.bin/... is a wonderful way, to access the locally installed Jest (or Mocha or...) binary that came with the locally installed package. (Yes, in your npm scripts you can jest with nothing before, but this is handy on command line... (that's also a good start for your debugging config, whichever IDE you are using...) Your project might not have a set of configuration options. But if it does (peek into the scripts in package.json), this is, what you need. --runInBand – as said, don't know about your configuration, but if you concentrate on developing/fixing a single test, you rather do not want to deal with web workers... Yes, you can give the whole, explicit path to your file Optionally, you can use -t to not run all tests in that file, but only a single one (here: the one, that has something with ‘show expanded’ in its name). Same effect can be achieved by glueing .only() into that file.