chore: add codecov for testing (#3)

Signed-off-by: Gaius <gaius.qi@gmail.com>

.github/workflows/ci.yaml

@@ -41,14 +41,17 @@ jobs:
       - name: Checkout code
         uses: actions/checkout@v3
 
-      - name: Install stable toolchain
+      - name: Install cargo-llvm-cov
-        uses: actions-rs/toolchain@v1
+        uses: taiki-e/install-action@v2
         with:
-          profile: minimal
+          tool: cargo-llvm-cov
-          toolchain: stable
-          override: true
 
-      - name: Run cargo test
+      - name: Run tests
-        uses: actions-rs/cargo@v1
+        run: cargo llvm-cov --all-features --workspace --lcov --output-path lcov.info
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v3
         with:
-          command: test
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: lcov.info
+          fail_ci_if_error: true

.gitignore

@@ -8,6 +8,7 @@ bin/
 
 # Test binary, built with `go test -c`
 *.test
+lcov.info
 
 # Output of the go coverage tool, specifically when used with LiteIDE
 *.out

codecov.yml

@@ -0,0 +1,18 @@
+coverage:
+  precision: 2
+  round: down
+  range: "80...100"
+  status:
+    project:
+      default:
+        enabled: no
+    patch:
+      default:
+        enabled: no
+
+comment:
+  layout: "reach, diff, flags, files"
+  behavior: default
+  require_changes: false
+  branches:
+    - main