Transforming import for jest to work & fixing test CI

Related issue

Closes #980

Context / Background

__tests__/__renderer__/workday-waiver.js is failing due to one of its includes not being written in ES6 and needing transpilation. SyntaxError: Unexpected token 'export'

What change is being introduced by this PR?

Searched for many possible solutions. Seems this might be fixed in newer jest versions, but I think we should go that way after we fix our electron usage. Leveraging a few solutions I found over the internet, this is the only solution I found to be working.

A few sources https://stackoverflow.com/questions/75578896/running-test-with-jest-in-repo-using-yarn-syntaxerror-unexpected-token-export https://stackoverflow.com/questions/49263429/jest-gives-an-error-syntaxerror-unexpected-token-export https://jestjs.io/docs/configuration#transformignorepatterns-arraystring

Changes:

Adding a babel.config.js file that sets the preset '@babel/preset-env'. It has to be a file and cannot be configured in package.json like it was before, or jest will ignore the file.
Adding --ignoreTransformPatterns that makes jest stop ignoring the astronomia package when transpiling .js files. Some people suggest adding this to jest.config.js but it did not work with our setup. Only by adding to the command line did I get it to work.

How will this be tested?

Running npm run test:jest

Update 1:

Also added a node version to Checks.yml so that the CI can work through the Puppeteer include error. This is fixed in newer versions of node.

> puppeteer@19.5.2 postinstall /home/runner/work/time-to-leave/time-to-leave/node_modules/puppeteer
> node install.js

internal/modules/cjs/loader.js:638
    throw err;
    ^

Error: Cannot find module 'puppeteer/internal/node/install.js'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
    at Function.Module._load (internal/modules/cjs/loader.js:562:25)
    at Module.require (internal/modules/cjs/loader.js:692:17)
    at require (internal/modules/cjs/helpers.js:25:[18](https://github.com/thamara/time-to-leave/actions/runs/5285712756/jobs/9564455308#step:4:19))
    at Object.<anonymous> (/home/runner/work/time-to-leave/time-to-leave/node_modules/puppeteer/install.js:38:27)
    at Module._compile (internal/modules/cjs/loader.js:778:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:789:10)
    at Module.load (internal/modules/cjs/loader.js:653:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
    at Function.Module._load (internal/modules/cjs/loader.js:585:3)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! puppeteer@[19](https://github.com/thamara/time-to-leave/actions/runs/5285712756/jobs/9564455308#step:4:20).5.2 postinstall: `node install.js`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the puppeteer@19.5.2 postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /home/runner/.npm/_logs/[20](https://github.com/thamara/time-to-leave/actions/runs/5285712756/jobs/9564455308#step:4:21)[23](https://github.com/thamara/time-to-leave/actions/runs/5285712756/jobs/9564455308#step:4:24)-06-16T02_52_[28](https://github.com/thamara/time-to-leave/actions/runs/5285712756/jobs/9564455308#step:4:29)_767Z-debug.log
Error: Process completed with exit code 1.

Update 2: The repo has a patch for jest 3.0.0 and it seems there is a new 3.0.1 for which the patch fails. Changed package.json to force the version we are patching.

Update 3:

Error happening for macos:

 ● Notifications › notify › displays a notification in test

    : Timeout - Async callback was not invoked within the 5000 ms timeout specified by jest.setTimeout.Timeout - Async callback was not invoked within the 5000 ms timeout specified by jest.setTimeout.Error:

      22 |         });
      23 |
    > 24 |         test('displays a notification in test', (done) =>
         |         ^
      25 |         {
      26 |             process.env.NODE_ENV = 'test';
      27 |             const notification = createNotification('test');

      at new Spec (node_modules/jest-jasmine2/build/jasmine/Spec.js:116:22)
      at Suite.<anonymous> (__tests__/__main__/notification.js:24:9)

This test has a mock fix for Linux, attempting same for macos.

Update 4:

Fixing version of ubuntu to ubuntu-20.04 as actions on ubuntu-latest are getting stuck.

https://github.com/actions/runner-images/issues/6698 https://github.com/actions/runner-images/issues/6704 https://github.com/actions/runner/issues/1819

Impacted Files	Coverage Δ
js/classes/FlexibleMonthCalendar.js	`60.05% <0.00%> (-0.36%)`	:arrow_down:
js/main-window.js	`72.56% <0.00%> (-0.41%)`	:arrow_down:
js/windows.js	`26.92% <0.00%> (ø)`
src/preferences.js	`84.26% <0.00%> (ø)`
src/workday-waiver.js	`82.52% <0.00%> (+0.26%)`	:arrow_up:

thamara / time-to-leave