add hexo@7 (#231) #167

	name: CI

	on:
	push:
	branches: [master]
	pull_request:
	types: [synchronize, opened, reopened, ready_for_review]

	jobs:
	unit_test:
	name: "Unit tests using Hexo ${{ matrix.hexo }}"
	runs-on: ubuntu-latest
	strategy:
	matrix:
	hexo: [3.x, 4.x, 5.x, 6.x, 7.x]

	steps:
	- name: Checkout
	uses: actions/checkout@v2
	- uses: actions/setup-node@v2
	with:
	node-version: "18"
	- name: Get yarn cache directory path
	id: yarn-cache-dir-path
	run: echo "::set-output name=dir::$(yarn cache dir)"
	- uses: actions/cache@v2
	with:
	path: ${{ steps.yarn-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: Install specific hexo version
	run: yarn add hexo@${{ matrix.hexo }}

	- name: Run unit tests
	run: yarn test

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