Tests

Note: elasticseach 6 is required for running the tests

Test all of the packages

yarn test

Test a single package

cd packages/[package-name];
yarn test

Test a single file

cd packages/[package-name];
yarn test --testPathPatterns 'example-spec'

Test a single file expectation

cd packages/[package-name];
yarn test --testPathPatterns 'example-spec' -t 'should output hello world'

Test a single package in debug mode

cd packages/[package-name];
yarn test:debug
# or with a different debug scope
env DEBUG='*execution-controller*' yarn test:debug

Test a single package in watch mode

cd packages/[package-name];
yarn test:watch

Attaching a Debugger to Jest within ts-scripts

To debug Jest tests launched through ts-scripts, set the ATTACH_JEST_DEBUGGER environment variable to start Jest in Node.js debug mode. This will allow for debugger statements to work and enable the developer to go line by line within vscode.

1. Enable Node Debugger

Run your test command with the debugger flag:

ATTACH_JEST_DEBUGGER=true yarn test

---

2. Configure VS Code

Create or edit your .vscode/launch.json file with the following:

{
  "version": "0.2.0",
  "configurations": [
    {
      "type": "node",
      "request": "attach",
      "name": "Attach to Jest Fork in ts-scripts",
      "port": 9230,
      "restart": true
    }
  ]
}

Learn more about debugging node.js in vscode Here: Debugging node.js in vscode

---

3. Attach from VS Code

1. Open the Run and Debug panel in VS Code.
2. Choose Attach to Jest Fork in ts-scripts from the dropdown.
3. Press the green Start Debugging ▶️ button.

VS Code will attach to the Jest process paused at the first line.

---

4. How It Works

• The ATTACH_JEST_DEBUGGER flag tells ts-scripts to add --inspect-brk=9230 when spawning Jest.
• Jest pauses execution until a debugger connects.
• VScode connects to the process using the settings in launch.json.

---