Test wasm32-unknown-unknown target (#791)

.github/workflows/ci.yaml

@@ -67,6 +67,22 @@ jobs:
           CARGO_TARGET_WASM32_WASI_RUNNER: "wasmtime run --"
           RUSTFLAGS: -C target-feature=+simd128
 
+  run-wasm32-unknown-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: nightly-2024-01-04
+          targets: wasm32-unknown-unknown
+      - uses: Swatinem/rust-cache@v2
+      - uses: jetli/[email protected]
+        with:
+          version: 'latest'
+      - run: cd crates/prover && wasm-pack test --node
+        env:
+          RUSTFLAGS: -C target-feature=+simd128
+
   run-neon-tests:
     runs-on: macos-latest-xlarge
     steps:

crates/prover/Cargo.toml

@@ -30,6 +30,8 @@ serde = { version = "1.0", features = ["derive"] }
 aligned = "0.4.2"
 test-log = { version = "0.2.15", features = ["trace"] }
 tracing-subscriber = "0.3.18"
+[target.'cfg(all(target_family = "wasm", not(target_os = "wasi")))'.dev-dependencies]
+wasm-bindgen-test = "0.3.43"
 
 [target.'cfg(not(target_arch = "wasm32"))'.dev-dependencies.criterion]
 features = ["html_reports"]
@@ -44,6 +46,7 @@ version = "0.5.1"
 
 [lib]
 bench = false
+crate-type = ["cdylib", "lib"]
 
 [lints.rust]
 warnings = "deny"

crates/prover/src/examples/poseidon/mod.rs

@@ -404,6 +404,19 @@ mod tests {
     };
     use crate::math::matrix::{RowMajorMatrix, SquareMatrix};
 
+    #[cfg(all(target_family = "wasm", not(target_os = "wasi")))]
+    #[wasm_bindgen_test::wasm_bindgen_test]
+    fn test_poseidon_prove_wasm() {
+        const LOG_N_INSTANCES: u32 = 10;
+        let config = PcsConfig {
+            pow_bits: 10,
+            fri_config: FriConfig::new(5, 1, 64),
+        };
+
+        // Prove.
+        prove_poseidon(LOG_N_INSTANCES, config);
+    }
+
     #[test]
     fn test_apply_m4() {
         let m4 = RowMajorMatrix::<BaseField, 4>::new(