How to configure unhandled-rejections for jest in bazel

Question

The below configuration in npmrc file suppresses the error for unhandledPromiseRejection after migration from node 14 to node 16.

.npmrc node-options="--unhandled-rejections=none"

But in bazel using jest_test, unsure where to configure this. Can we do it with jest_test or package.json or jest.config.js

How and what is the appropriate way to do this?

tried to import .npmrc file in npm_install of rules_nodejs library with version 5.x version. But it is just copying registry url and ignoring other configs.

Is that a permission issue or if rules_nodejs npmrc is getting overridden? or anything else i am missing here?

What is the right way to suppress this error in jest_test in bazel with jest_cli

Answer 1

Handled from jest.config.ts

setupFiles: ['<rootDir>/.jest/handleErrors.js'],

handleErrors.js

process.on('unhandledRejection', reason => {
  return;
});