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

对于Windows中的VSCode，我在我的启动中使用这些。json文件。注意使用${pathSeparator}来处理Win和Mac中的差异。在调试下拉菜单中选择一个并按F5运行。

 {
  "name": "Debug Selected Jest Test",
  "type": "node",
  "request": "launch",
  "runtimeArgs": ["--inspect-brk", "${workspaceRoot}/node_modules/jest/bin/jest.js", "--runInBand"],
  "args": ["--", "-i", "${fileDirnameBasename}${pathSeparator}${fileBasename} ", "-t", "${selectedText}"],
  "console": "integratedTerminal",
  "internalConsoleOptions": "neverOpen",
  "port": 9229
},
{
  "name": "Debug Named Jest Test",
  "type": "node",
  "request": "launch",
  "runtimeArgs": ["--inspect-brk", "${workspaceRoot}/node_modules/jest/bin/jest.js", "--runInBand"],
  "args": ["--", "-i", "${fileDirnameBasename}${pathSeparator}${fileBasename} ", "-t", "filename.test.js"],
  "console": "integratedTerminal",
  "internalConsoleOptions": "neverOpen",
  "port": 9229
},

如果你把jest作为脚本命令运行，比如npm test，你需要使用下面的命令让它工作:

npm test -- -t "fix order test"

在最新版本的jest中，您可以以多种方式运行任何单个测试。

fit('only this test will run', () => {});

it.only('only this test will run',() => {});

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.

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);
});