ci: test and build when create pr (#8)

Author: hyesungoh

.github/workflows/test-and-build.yml

@@ -0,0 +1,41 @@
+name: Test and Build
+
+on:
+  pull_request:
+    branches: [ main ]
+    types: [opened, synchronize, reopened]
+
+jobs:
+  test-and-build:
+    runs-on: ubuntu-latest
+    
+    strategy:
+      matrix:
+        node-version: [20.x]
+        job-type: [test, build]
+    
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Enable Corepack
+        run: corepack enable
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          cache: "yarn"
+          cache-dependency-path: "yarn.lock"
+          node-version-file: ".nvmrc"
+        
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+        
+      - name: Run tests
+        if: matrix.job-type == 'test'
+        run: yarn test
+        
+      - name: Build project
+        if: matrix.job-type == 'build'
+        run: yarn build
+