test: add diagram explaining test workflow (#4790) #9420

	name: "Test coverage"
	on:
	push:
	branches: ["master"]
	pull_request:
	branches: ["master"]

	permissions:
	id-token: write
	contents: read

	env:
	SUBSCRIPTION_ID: "8ecadfc9-d1a3-4ea4-b844-0d9f87e4d7c8"
	RESOURCE_GROUP_NAME: "agentbaker-e2e-tests"
	LOCATION: "eastus"
	CLUSTER_NAME: "agentbaker-e2e-test-cluster"
	AZURE_TENANT_ID: "72f988bf-86f1-41af-91ab-2d7cd011db47"

	jobs:
	unit_tests:
	runs-on: ubuntu-latest
	steps:
	- name: Install Go
	if: success()
	uses: actions/setup-go@v3
	with:
	go-version: '1.22'
	- name: Checkout code
	uses: actions/checkout@v4
	- name: Run unit tests
	run: go test `go list ./... \| grep -v e2e` -coverprofile coverage_raw.out -covermode count
	- name: Remove mocks.go lines
	run: \|
	sed '/mocks.go/d' coverage_raw.out > coverage-no-mocks.out
	- name: Remove proto lines
	run: \|
	sed '/pb.go/d' coverage-no-mocks.out > coverage.out
	- name: Convert coverage to lcov
	uses: jandelgado/gcov2lcov-action@v1
	- name: Coveralls
	uses: coverallsapp/github-action@v2
	with:
	parallel: true
	flag-name: run-1
	path-to-lcov: coverage.lcov
	finish:
	needs: [unit_tests]
	if: ${{ success() }}
	runs-on: ubuntu-latest
	steps:
	- name: Coveralls Finished
	uses: coverallsapp/github-action@v2
	with:
	parallel-finished: true
	carryforward: "run-1"

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