[#16] add ability to unset env variables #52

	name: CI - Tests and Integration
	on:
	push:
	branches: [ main ]
	pull_request:
	types:
	- opened
	- edited
	- reopened
	- synchronize
	jobs:
	test:
	runs-on: ubuntu-latest
	steps:

	- name: Check out repository code
	uses: actions/checkout@v4

	- name: Set up Go
	uses: actions/setup-go@v5
	with:
	go-version: '1.23'

	- name: Unit test
	run: go test -v ./...

	- name: Integration test
	run: bash test/run.sh

	- name: Bash completion tests
	run: \|
	echo "Checking bash completion environment..."
	bash --version
	echo "BASH_VERSION: $BASH_VERSION"
	echo "Running bash completion test suite (191 tests across 18 suites)..."
	./completion/tests/run_all_tests.sh

	- name: Try executing the README
	run: go install && markdown-runner

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