Merge pull request remram44#19 from remram44/wasm

Run CI on wasm target

Author: remram44

.github/workflows/test.yml

@@ -10,24 +10,56 @@ jobs:
       matrix:
         os: [ubuntu-latest]
         rust-version: [1.33.0, stable, nightly]
+        mode: [native]
         include:
         - os: macos-latest
           rust-version: 1.33.0
+          mode: native
         - os: windows-latest
           rust-version: 1.33.0
+          mode: native
+        - os: ubuntu-latest
+          rust-version: stable
+          mode: wasm
     runs-on: ${{ matrix.os }}
+    env:
+      TARGET: ""
     steps:
     - uses: actions/checkout@v2
     - name: Set up Rust ${{ matrix.rust-version }}
       uses: actions-rs/toolchain@v1
+      id: rustup
       with:
         toolchain: ${{ matrix.rust-version }}
         override: true
+    - name: Cache wasm binaries
+      if: matrix.mode == 'wasm'
+      uses: actions/cache@v2
+      id: wasm-binaries
+      with:
+        path: |
+          ~/.cargo/bin
+          ~/.cargo/.crates.toml
+          ~/.cargo/.crates2.json
+        key: rust-${{ steps.rustup.outputs.rustc_hash }}-bindgen-0.2.63-pack-0.9.1
+    - name: Set up wasm
+      if: matrix.mode == 'wasm'
+      run: |
+        rustup target add wasm32-unknown-unknown
+        echo "::set-env name=TARGET::--target wasm32-unknown-unknown"
+        cargo install --version 0.2.63 wasm-bindgen-cli
+        cargo install --version 0.9.1 wasm-pack
     - name: Build
-      run: cargo build --verbose
+      run: cargo build --verbose $TARGET
     - name: Run tests
+      if: matrix.mode == 'native'
       run: cargo test --verbose
     - name: Run benchmarks
+      if: matrix.mode == 'native'
       run: cargo bench --verbose
+    - name: Run wasm tests
+      if: matrix.mode == 'wasm'
+      run: wasm-pack test --node
     - name: Build doc
+      if: matrix.mode == 'native'
       run: cargo doc

Cargo.toml

@@ -28,6 +28,11 @@ rustc-dep-of-std = ['core', 'compiler_builtins']
 criterion = "=0.3.2" # 0.3.3 broken on Rust 1.33
 humansize = "1.1"
 rand = "0.7"
+getrandom = { version = "0.1", features = ["wasm-bindgen"] }
+
+[target.'cfg(target_arch = "wasm32")'.dev-dependencies]
+wasm-bindgen = "0.2.63"
+wasm-bindgen-test = "0.3"
 
 [[bench]]
 path = "src/bench.rs"

src/lib.rs

@@ -208,6 +208,8 @@ pub fn adler32<R: std::io::Read>(mut reader: R) -> std::io::Result<u32> {
 mod test {
     use rand::Rng;
     use std::io;
+    #[cfg(target_arch = "wasm32")]
+    use wasm_bindgen_test::wasm_bindgen_test;
 
     use super::{adler32, RollingAdler32, BASE};
 
@@ -225,6 +227,7 @@ mod test {
     }
 
     #[test]
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
     fn testvectors() {
         fn do_test(v: u32, bytes: &[u8]) {
             let mut hash = RollingAdler32::new();
@@ -254,6 +257,7 @@ mod test {
     }
 
     #[test]
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
     fn compare() {
         let mut rng = rand::thread_rng();
         let mut data = vec![0u8; 5589];
@@ -273,6 +277,7 @@ mod test {
     }
 
     #[test]
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
     fn rolling() {
         assert_eq!(RollingAdler32::from_value(0x01020304).hash(), 0x01020304);
 
@@ -294,6 +299,7 @@ mod test {
     }
 
     #[test]
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test)]
     fn long_window_remove() {
         let mut hash = RollingAdler32::new();
         let w = 65536;