Add tests to Language class #59

	# Copyright Jiaqi Liu
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.
	---
	name: Template CI/CD

	"on":
	pull_request:
	push:
	branches:
	- master

	env:
	JDK_VERSION: 17
	JDK_DISTRIBUTION: 'adopt'
	USER: QubitPi
	EMAIL: jack20220723@gmail.com

	jobs:
	yml-md-style-and-link-checks:
	uses: QubitPi/hashistack/.github/workflows/yml-md-style-and-link-checks.yml@master

	tests:
	name: Unit & Integration Tests
	needs: yml-md-style-and-link-checks
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- name: Test environment setup
	uses: ./.github/actions/ci-setup
	- name: Set up Docker for Integration Tests
	uses: docker-practice/actions-setup-docker@master
	- name: Run unit & integration tests
	run: mvn -B clean verify

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