对于最新的Jest版本，您可以使用以下方法之一仅运行一个测试，对于测试套件也是如此。

it.only('test 1', () => {})

test.only('test 1', () => {})

fit('test 1', () => {})

如果测试名称是唯一的，开玩笑的“test 1”也可以工作。

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。

我花了一段时间才找到这个，所以我想在这里为像我这样使用纱线的人添加它:

yarn test -i "src/components/folderX/folderY/.../Filename.ts" -t "name of test"

文件名在-i后面，testname在-t后面。

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', () => {})

您还可以使用f或x来集中或排除一个测试。例如

fit('only this test will run', () => {
   expect(true).toBe(false);
});

it('this test will not run', () => {
   expect(true).toBe(false);
});

xit('this test will be ignored', () => {
   expect(true).toBe(false);
});

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.