chore: add custom cfg for expand test (#323)

.github/workflows/bench.yml

@@ -18,19 +18,6 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@stable
         id: rust-toolchain
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-bench-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-bench-
-            ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-
-            ${{ runner.os }}-cargo-
       - run: cargo bench --bench narrow --all-features -- --output-format=bencher | tee output.txt
       - uses: actions/upload-artifact@v4
         with:

.github/workflows/test.yml

@@ -12,22 +12,8 @@ jobs:
     runs-on: ubuntu-24.04-arm
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@nightly
-      - run: cargo install --locked cargo-expand
       - uses: dtolnay/[email protected]
         id: rust-toolchain
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-
-            ${{ runner.os }}-cargo-
       - run: cargo check --workspace --all-targets --no-default-features
       - run: cargo check --workspace --all-targets --all-features
       - run: cargo test --workspace --all-features --lib --bins --examples --tests -- --skip expand
@@ -39,24 +25,10 @@ jobs:
     runs-on: ubuntu-24.04-arm
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@nightly
-      - run: cargo install --locked cargo-expand
       - uses: dtolnay/rust-toolchain@stable
         id: rust-toolchain
         with:
           components: clippy, rustfmt
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-
-            ${{ runner.os }}-cargo-
       - name: Check
         run: cargo check --workspace --all-targets --all-features
       - name: Test
@@ -75,19 +47,6 @@ jobs:
       - uses: actions/checkout@v4
       - uses: dtolnay/rust-toolchain@miri
         id: rust-toolchain
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-miri-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-miri-
-            ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-
-            ${{ runner.os }}-cargo-
       - run: cargo miri setup
       - run: cargo miri test --no-default-features
       - run: cargo miri test --all-features
@@ -100,25 +59,10 @@ jobs:
       RUSTDOCFLAGS: "-C instrument-coverage"
     steps:
       - uses: actions/checkout@v4
-      - uses: dtolnay/rust-toolchain@nightly
-      - run: cargo install --locked cargo-expand
       - uses: dtolnay/rust-toolchain@stable
         id: rust-toolchain
         with:
           components: llvm-tools-preview
-      - uses: actions/cache@v4
-        with:
-          path: |
-            ~/.cargo/bin/
-            ~/.cargo/registry/index/
-            ~/.cargo/registry/cache/
-            ~/.cargo/git/db/
-            target/
-          key: ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-coverage-${{ hashFiles('**/Cargo.lock') }}
-          restore-keys: |
-            ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-coverage-
-            ${{ runner.os }}-cargo-${{ steps.rust-toolchain.outputs.cachekey }}-
-            ${{ runner.os }}-cargo-
       - run: cargo build --workspace --all-targets --all-features
       - run: cargo test --workspace --all-targets --all-features
         env:

narrow-derive/Cargo.toml

@@ -28,3 +28,6 @@ syn = { version = "2.0.96", features = ["visit-mut", "full"] }
 
 [dev-dependencies]
 macrotest = "1.0.13"
+
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(narrow_macrotest)'] }

narrow-derive/tests/expand.rs

@@ -1,4 +1,10 @@
 #[test]
+#[cfg(narrow_macrotest)]
+/// To run these tests:
+/// `RUSTFLAGS='--cfg narrow_macrotest' cargo test -p narrow-derive expand`
+///
+/// To update the generated output:
+/// `MACROTEST=overwrite RUSTFLAGS='--cfg narrow_macrotest' cargo test -p narrow-derive expand`
 fn expand() {
     macrotest::expand("tests/expand/**/*.rs");
 }