feat: add test ci workflow

.github/workflows/continuous-integration.yml

@@ -34,3 +34,31 @@ jobs:
         run: yarn --frozen-lockfile
       - name: Compile Projects
         run: yarn build
+
+  Testing:
+    name: Unit Tests
+    if: "!contains(github.event.head_commit.message, '[skip ci]')"
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        node_version: [12, 14]
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+
+    steps:
+      - name: Checkout Project
+        uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node_version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node_version }}
+      - name: Restore CI Cache
+        uses: actions/cache@v1
+        with:
+          path: node_modules
+          key: ${{ runner.os }}-${{ matrix.node_version }}-${{ hashFiles(matrix.os == 'windows-latest' && '**\yarn.lock' || '**/yarn.lock') }}
+      - name: Install Dependencies
+        run: yarn --frozen-lockfile
+      - name: Run tests
+        run: yarn test