Add test, test case, test workflow

.github/workflows/test.yaml

@@ -0,0 +1,47 @@
+on:
+  workflow_dispatch:
+  pull_request:
+
+permissions:
+  contents: read
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - os: ubuntu-latest
+            target: x86_64-unknown-linux-gnu
+            toolchain: stable
+
+          - os: ubuntu-latest
+            target: x86_64-unknown-linux-gnu
+            toolchain: nightly
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          target: ${{ matrix.target }}
+          toolchain: ${{ matrix.toolchain }}
+          components: llvm-tools-preview
+
+      - uses: Swatinem/rust-cache@v2
+
+      - name: Install cargo nextest
+        uses: taiki-e/install-action@nextest
+
+      - name: Install cargo-llvm-cov
+        uses: taiki-e/install-action@cargo-llvm-cov
+
+      - name: Install dependencies
+        uses: awalsh128/cache-apt-pkgs-action@latest
+        with:
+          packages: chromium-browser
+
+      - name: Run test
+        run: |
+          cargo llvm-cov nextest --no-tests pass --target ${{ matrix.target }}