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.

在命令行中，使用——testnameppattern或-t标志:

jest -t 'fix-order-test'

这将只运行与您提供的测试名称模式匹配的测试。它在Jest文档中。

另一种方法是在监视模式下运行测试，jest—watch，然后按P来过滤测试，输入测试文件名或T来运行单个测试名称。

如果你在描述块中有一个it，你必须运行

jest -t '<describeString> <itString>'

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

在Visual Studio Code中，这让我只能运行/调试一个带有断点的Jest测试:在Visual Studio Code中调试测试

我的发射。Json文件里面有这个:

{
  "version": "0.2.0",
  "configurations": [
    {
      "type": "node",
      "request": "launch",
      "name": "Jest All",
      "program": "${workspaceFolder}/node_modules/.bin/jest",
      "args": ["--runInBand"],
      "console": "integratedTerminal",
      "internalConsoleOptions": "neverOpen",
      "windows": {
        "program": "${workspaceFolder}/node_modules/jest/bin/jest",
      }
    },
    {
      "type": "node",
      "request": "launch",
      "name": "Jest Current File",
      "program": "${workspaceFolder}/node_modules/.bin/jest",
      "args": ["${relativeFile}"],
      "console": "integratedTerminal",
      "internalConsoleOptions": "neverOpen",
      "windows": {
        "program": "${workspaceFolder}/node_modules/jest/bin/jest",
      }
    }
  ]
}

在package.json文件中:

  "scripts": {
    "test": "jest"
  }

要运行一个测试，在该测试中，将test(或it)更改为test。只有(或it.only)。若要运行一个测试套件(多个测试)，请将describe更改为description .only。 如果需要，可以设置断点。 在Visual Studio Code中，转到调试视图(Shift + Cmd + D或Shift + Ctrl + D)。 从顶部的下拉菜单中，选择笑话当前文件。 单击绿色箭头以运行该测试。

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',() => {});