chore: add unit test github action steps (#516)

Signed-off-by: Ryan Wang <i@ryanc.cc>

.github/workflows/main.yml

@@ -21,7 +21,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [12.x, 14.x, 15.x, 16.x]
+        node-version: [14.x, 16.x]
     steps:
       - uses: actions/checkout@v2
 
@@ -36,8 +36,14 @@ jobs:
           node-version: ${{ matrix.node-version }}
           cache: 'pnpm'
 
-      - run: pnpm install
-      - run: pnpm lint
+      - name: Install dependencies
+        run: pnpm install
+      - name: Run code lint check
+        run: pnpm lint
+      - name: Run unit test
+        run: pnpm test:unit
+      - name: Run typescript type check
+        run: pnpm typecheck
 
   github-release:
     runs-on: ubuntu-latest
@@ -45,10 +51,10 @@ jobs:
     if: github.event_name == 'release'
     steps:
       - uses: actions/checkout@v2
-      - name: Use Node.js 14
+      - name: Use Node.js 16
         uses: actions/setup-node@v2
         with:
-          node-version: '14'
+          node-version: '16'
       - name: Install pnpm package manager
         run: npm install -g pnpm
       - run: pnpm install