[Enterprise Search] Kea mount test helper

[cee-chen]

Summary

After discussing this in a previous PR (#86822 (review)), I went ahead and created a test helper that DRY's out our repeated mount helpers across several tests. Super huge thanks to Jason for giving an example API!

Usage:

import { LogicMounter } from '../../../__mocks__/kea.mock';

const { mount, unmount } = new LogicMounter(SomeLogic);

it('mounts with context automatically reset between tests', () => {
  mount();
});

it('mounts and overrides default values', () => {
  mount({ foo: 'bar' });
  expect(SomeLogic.values.foo).toEqual('bar');
});

it('unmounts', () => {
  mount();
  unmount();
});

Checklist

• Unit or functional tests were updated or added to match the most common scenarios

[cee-chen]

@scottybollinger FYI - you may find this helper useful in your Workplace Search logic tests as well. You can use it in logic file tests to pass default values without having to manually set them. It also handles resetContext() behind the scenes for you.

[scottybollinger]

This is awesome! Can't wait to use it. Thanks Constance!

[cee-chen]

Example path:

['enterprise_search', 'app_search', 'engine_overview_logic']

Example defaults:

{
  defaults: {
    enterprise_search: {
      app_search: {
        engine_overview_logic: {
           ...values
        }
      }
    }
  }
}

I've never actually seen/used .reduceRight before this but was super surprised at how easy it was to find a one-liner that did exactly what we wanted 🤯

[JasonStoltz]

I love me some reduce 👍

[kibanamachine]

💚 Build Succeeded

• continuous-integration/kibana-ci/pull-request
• Commit: 4c57493

Metrics [docs]

Distributable file count

id	before	after	diff
default	47247	48007	+760

History

• 💚 Build #96801 succeeded eb322d959e2bc5068df9c63efc45f7f67f616e69

To update your PR or re-run it, just comment with:
@elasticmachine merge upstream

[JasonStoltz]

Thanks for doing this Constance!