✅ Run cargo-mutants

.github/workflows/ci.yml

@@ -29,12 +29,60 @@ jobs:
         with:
           command: check
 
+  fmt:
+    name: Rustfmt
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - uses: Swatinem/rust-cache@v2
+      - run: rustup component add rustfmt
+      - uses: actions-rs/cargo@v1
+        with:
+          command: fmt
+          args: --all -- --check
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - uses: Swatinem/rust-cache@v2
+      - run: rustup component add clippy
+      - uses: actions-rs/cargo@v1
+        with:
+          command: clippy
+          args: -- -D warnings
+
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          override: true
+      - uses: Swatinem/rust-cache@v2
+      - uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --all-features
+
   coverage:
     name: Test Coverage
     runs-on: ubuntu-latest
-    container:
-      image: xd009642/tarpaulin
-      options: --security-opt seccomp=unconfined
+    needs: [ test ]
     strategy:
       matrix:
         flags:
@@ -47,7 +95,10 @@ jobs:
           toolchain: nightly
           override: true
       - uses: Swatinem/rust-cache@v2
-      # - run: cargo install tarpaulin
+      - uses: taiki-e/install-action@v2
+        name: Install cargo-tarpaulin using install-action
+        with:
+          tool: cargo-tarpaulin
       - uses: actions-rs/cargo@v1
         with:
           command: tarpaulin
@@ -66,36 +117,41 @@ jobs:
           flags: ${{ matrix.flags }}
           fail_ci_if_error: true
 
-  fmt:
-    name: Rustfmt
+  cargo-mutants:
     runs-on: ubuntu-latest
+    if: github.event_name == 'pull_request'
+    # Often you'll want to only run this after the build is known to pass its basic tests,
+    # to avoid wasting time, and to allow using --baseline=skip.
+    needs: [ test ]
+    strategy:
+      fail-fast: false # Collect all mutants even if some are missed
+      matrix:
+        shard: [ 0, 1, 2, 3, 4, 5, 6, 7 ]
     steps:
       - uses: actions/checkout@v4
-      - uses: actions-rs/toolchain@v1
         with:
-          profile: minimal
-          toolchain: stable
-          override: true
-      - uses: Swatinem/rust-cache@v2
-      - run: rustup component add rustfmt
-      - uses: actions-rs/cargo@v1
-        with:
-          command: fmt
-          args: --all -- --check
-
-  clippy:
-    name: Clippy
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
+          fetch-depth: 0
+      - name: Relative diff
+        run: |
+          git branch -av
+          git diff origin/${{ github.base_ref }}.. | tee git.diff
       - uses: actions-rs/toolchain@v1
         with:
-          profile: minimal
           toolchain: stable
           override: true
       - uses: Swatinem/rust-cache@v2
-      - run: rustup component add clippy
-      - uses: actions-rs/cargo@v1
+      - uses: taiki-e/install-action@v2
+        name: Install cargo-mutants using install-action
         with:
-          command: clippy
-          args: -- -D warnings
+          tool: cargo-mutants
+      # Set an appropriate timeout for your tree here.
+      # The denominator of the shard count must be the number of shards.
+      - name: Mutants
+        run: |
+          cargo mutants --no-shuffle -vV --shard ${{ matrix.shard }}/8 --baseline=skip --timeout 300 --in-place --in-diff git.diff
+      - name: Archive mutants.out
+        uses: actions/upload-artifact@v4
+        if: always()
+        with:
+          path: mutants.out
+          name: mutants-shard${{matrix.shard}}.out

.gitignore

@@ -1,2 +1,5 @@
-/target
+/target/
+/mutants.out/
+/mutants.out.old/
+/.cargo/config.toml
 /Cargo.lock