Use Jest for tests #267

	name: Continuous Build

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	jobs:
	documentation:
	runs-on: ubuntu-latest
	steps:
	- name: Clone @api3/chains
	uses: actions/checkout@v3

	- name: Check hyperlinks
	uses: gaurav-nelson/github-action-markdown-link-check@v1

	lint-test:
	runs-on: ubuntu-latest
	steps:
	- name: Clone @api3/chains
	uses: actions/checkout@v3

	- name: Setup Node
	uses: actions/setup-node@v3
	with:
	node-version: '18'
	cache: 'yarn'

	- name: Get yarn cache directory path
	id: deps-cache-dir-path
	run: echo "dir=$(yarn cache dir)" >> $GITHUB_OUTPUT

	- uses: actions/cache@v3
	id: deps-cache
	with:
	path: ${{ steps.deps-cache-dir-path.outputs.dir }}
	key: ${{ runner.os }}-yarn-${{ hashFiles('**/yarn.lock') }}
	restore-keys: \|
	${{ runner.os }}-yarn-

	- name: Install Dependencies
	run: yarn install --frozen-lockfile

	- name: Run Build
	run: yarn build

	- name: Run Linting Checks
	run: yarn lint

	- name: Run Validations
	run: yarn validate

	- name: Run Tests
	run: yarn test

	required-checks-passed:
	name: All required checks passed
	runs-on: ubuntu-latest
	needs: [documentation, lint-test]
	steps:
	- run: exit 0

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