The answer is using Visual Studio Code !! You can just place breakpoints, choose whether or not to make a single run, enable watch mode, or even only execute the tests of the current opened file. click File -> Preferences -> Keyboard Shortcuts -> ” ” (top right) the json config file will open add this: Want to start contributing features? Another vscode instance will open with the just compiled extension installed. That’s great, so how can I integrate Visual Studio Code debugging capabilities in my Jest based test suite? Just by setting up a launch config file.Ĭheck that debugger works: Jest Runner will work out of the box, with a valid Jest config. How to debug jest based unit tests in Visual Studio Code? This will open up a file called launch.json. To do this open up the configuration by clicking Debug -> Open Configurations. Run tests related to changed files based on hg/git (uncommitted files): Run tests related to path/to/fileA.js and path/to/fileB.js: Run tests that match this spec name (match against the name in describe or test, basically).Īfter you have Jest-Cli installed you will need to configure VS Code for debugging. Starting with debugging is possible by clicking on the debug CodeLense above appendant it tests, but you can also debug all tests at once by starting debugging of “vscode-jest-tests” within the VS Code Debug Side Bar. The following examples will have an equal result: Jest supports both camelcase and dashed arg formats. If you run Jest via npm test, you can still use the command line arguments by inserting a - between npm test and the Jest arguments. If you run Jest via yarn test, you can pass the command line arguments directly as Jest arguments. Vscode-jest-runner is about running or debugging a sepcific test or test-suite, while vscode-jest is about running your current test-suite everytime you change it and it’s not possible to run or debug a specific test. What’s the difference between VSCode jest and VSCode runner?
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