Run and debug your Jest tests with ease from VS Code
A VS Code extension that will help you run and debug Jest tests from your editor.
You no longer have to run your entire test suite for that one test you changed 🎉
You don't see the run/link buttons:
If you are not seeing the buttons for running the tests, it could be because the plugin did not recognize the file as a test file. You need to update the test match patterns so that it will be recognized as a test file. See the config options section to see more details.
Your Jest is installed differently:
There is a config option to specify your Jest path. See the config options.
Jest does not match your test when you run it from the CodeLens
Jest on Windows has different treatment for single and double quotes in command-line arguments.
The following command may NOT work on Windows because test name is wrapped with apostrophee:
node_modules\.bin\jest 'c:/samples/my service/test/get-data.spec.js'
No tests found, exiting with code 1
Run with `--passWithNoTests` to exit with code 0
In C:\samples\my service
53 files checked.
testMatch: **/__tests__/**/*.[jt]s?(x), **/?(*.)+(spec|test).[tj]s?(x) - 1 match
testPathIgnorePatterns: \\node_modules\\ - 35 matches
testRegex: - 0 matches
Pattern: 'c:\\samples\\my service\\test\\get-data.spec.js' - 0 matches
Wrapping file name with quotation marks solves the problem:
node_modules\.bin\jest "c:/samples/my service/test/get-data.spec.js"
There is a config option to control quotation marks to use in command-line arguments.
See the config options.
Config Options
Option
Description
Jest Config Path
Jest config file path relative to the current workspace (e.g: ./jest.config.js)
Jest Path
Absolute path to the Jest binary (default: node_modules/.bin/jest)
Run Test Label
Label for the run test action
Debug Test Label
Label for the debug test action
Update Snapshosts Label
Label for update snapshots action
Custom Snapshot Matchers
Custom snapshot matchers
Test Match Patterns
Glob patterns to match test files (default: ['/*.{test,spec}.{js,jsx,ts,tsx}', '/tests/*.{js,jsx,ts,tsx}'])
Argument Quotes To Use
Quotation marks to use in command-line arguments: 'auto', 'single', 'double' or 'none'
Jest CLI Options
Specify CLI options for the Jest command (e.g --coverage)
Environment variables
Environment variables separated by a space (e.g NODE_ENV=prod TEST_SUITE=all)
