tools/scripts/tools.mjs does not actually run tests when --test --unit is specified

[susumutomita]

Is there an existing issue for this?

• I have searched the existing issues

SDK version

• Using Lit JS SDK (master branch, commit xyz, etc.)

Lit Network

• N/A (this is a tooling/script issue, not network-specific)

Description of the bug/issue

We have a script in tools/scripts/tools.mjs that handles various commands, including --test --unit. However, currently the testFunc() implementation only shows a usage message and exits, and does not actually call yarn test:unit. As a result, yarn tools --test --unit completes without running any tests.

Expected Behavior

• When we do yarn tools --test --unit, the script should invoke yarn test:unit (or nx run-many --target=test) to run all unit tests.
• The same should happen in CI, so that our tests really run as intended.

Severity of the bug

• Our CI workflow uses run: yarn tools --test --unit (e.g., in .github/workflows/ci.yml) expecting to run the full unit test suite.
• In reality, no tests are run, which can lead to undetected failing tests and false-positive CI passes.

Steps To Reproduce

1. Run yarn tools --test --unit locally
2. Notice that it prints usage info, then exits without invoking yarn test:unit
3. Check your console or logs — no tests are actually executed.

Link to code

https://github.com/LIT-Protocol/js-sdk/blob/master/tools/scripts/tools.mjs#L230

Proposed Fix or Approaches

Inside tools/scripts/tools.mjs, in the testFunc() function, we can add logic like:

async function testFunc() {
  const TEST_TYPE = args[1];

  if (!TEST_TYPE || TEST_TYPE === '' || TEST_TYPE === '--help') {
    // show usage
    ...
    exit();
  }

  if (TEST_TYPE === '--unit') {
    // Actually run the tests
    await childRunCommand('yarn test:unit');
    exit();
  }

  // optionally handle other test types if needed
  redLog(\`Unrecognized test type: \${TEST_TYPE}\`);
  exit();
}

This way, yarn tools --test --unit truly calls yarn test:unit. After implementing this, our CI job run: yarn tools --test --unit will genuinely run the unit tests.

Anything else?

• We might want to add more test categories (e.g. --test --integration) in the same manner.
• If the CI intentionally wants a different test command, we should clarify that in the script logic.