feat: code coverage

.github/workflows/coverage.yml

@@ -0,0 +1,44 @@
+name: coverage
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - uses: actions-rs/toolchain@v1
+      with:
+        toolchain: nightly
+        override: true
+
+    - name: Build
+      run: cargo build --verbose
+
+    - name: Run tests
+      run: cargo test --verbose
+      env:
+        CARGO_INCREMENTAL: '0'
+        RUSTFLAGS: '-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
+        RUSTDOCFLAGS: '-Zprofile -Ccodegen-units=1 -Cinline-threshold=0 -Clink-dead-code -Coverflow-checks=off -Cpanic=abort -Zpanic_abort_tests'
+
+    - name: rust-grcov
+      # You may pin to the exact commit or the version.
+      # uses: actions-rs/grcov@bb47b1ed7883a1502fa6875d562727ace2511248
+      uses: actions-rs/grcov@v0.1
+
+    - name: Codecov
+      # You may pin to the exact commit or the version.
+      # uses: codecov/codecov-action@81cd2dc8148241f03f5839d295e000b8f761e378
+      uses: codecov/codecov-action@v4
+      env:
+        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+      with:
+        verbose: true
+        fail_ci_if_error: true