diff --git a/.github/workflows/tester.yml b/.github/workflows/tester.yml
new file mode 100644
index 0000000..c4c1432
--- /dev/null
+++ b/.github/workflows/tester.yml
@@ -0,0 +1,36 @@
+name: Tester
+
+on: [push, pull_request]
+
+jobs:
+  tester:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macos-latest]
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          repository: hexojs/hexo-starter
+      - name: Use Node.js
+        uses: actions/setup-node@v1
+      - name: Cache NPM dependencies
+        uses: actions/cache@v1
+        with:
+          path: node_modules
+          key: ${{ runner.os }}-npm-cache
+          restore-keys: ${{ runner.os }}-npm-cache
+      - name: Install Dependencies
+        run: npm install
+      - uses: actions/checkout@v2
+        with:
+          repository: next-theme/hexo-theme-next
+          path: themes/next
+      - uses: actions/checkout@v2
+        with:
+          repository: SukkaLab/hexo-many-posts
+          path: source/_posts/hexo-many-posts
+      - run: npx hexo config theme next
+      - name: Test
+        run: npx hexo g