feat(occara): add tests for wasm32 (#67)

This add testing of occara on wasm32.
The `test_make_bottle_wasm` test still fails for now, since constructing
C++ exceptions is still broken.

After this is fixed in a future PR, we should run this on CI.

Cargo.toml

@@ -58,6 +58,7 @@ console_error_panic_hook = "0.1"
 console_log = "1.0"
 log = "0.4"
 wasm-bindgen = "0.2"
+wasm-bindgen-test = "0.3"
 
 [workspace.package]
 version = "0.1.0"

Makefile.toml

@@ -231,6 +231,8 @@ script_runner = "@shell"
 script = '''
 WASM32_UNKNOWN_UNKNOWN_STDLIB_DIR="$(pwd)/target/wasm-libcxx/wasm32-unknown-unknown-libcxx" # shell2batch:
 . $WASM32_UNKNOWN_UNKNOWN_STDLIB_DIR/env.sh # shell2batch: call target\wasm-libcxx\wasm32-unknown-unknown-libcxx\env.bat
+cd crates/occara
+rustup run nightly wasm-pack test --node
 '''
 install_crate = "wasm-pack"
 

crates/occara/Cargo.toml

@@ -23,9 +23,13 @@ walkdir.workspace = true
 autocxx-build.workspace = true
 miette.workspace = true
 
-[dev-dependencies]
+[target.'cfg(not(target_arch = "wasm32"))'.dev-dependencies]
 criterion.workspace = true
 
+[dev-dependencies]
+wasm-bindgen-test.workspace = true
+wasm-libc.workspace = true
+
 [[bench]]
 name = "occara"
 harness = false

crates/occara/tests/make_bottle.rs

@@ -1,6 +1,7 @@
 use occara::internal::{make_bottle_cpp, make_bottle_rust};
 use std::sync::Arc;
 use std::thread;
+use wasm_bindgen_test::*;
 
 #[test]
 #[ignore] // Don't run this test by default, since its quite slow
@@ -27,3 +28,23 @@ fn test_make_bottle() {
     assert!(error_rust_cpp.join().unwrap() < EPSILON);
     assert!(error_cpp_rust.join().unwrap() < EPSILON);
 }
+
+#[wasm_bindgen_test]
+#[allow(dead_code)]
+fn test_make_bottle_wasm() {
+    // TODO(wasm32): This test fails, since exceptions are broken
+    wasm_libc::init();
+    const WIDTH: f64 = 50.0;
+    const HEIGHT: f64 = 70.0;
+    const THICKNESS: f64 = 30.0;
+    const EPSILON: f64 = 1e-6;
+
+    let bottle_rust = make_bottle_rust(WIDTH, HEIGHT, THICKNESS);
+    let bottle_cpp = make_bottle_cpp(WIDTH, HEIGHT, THICKNESS);
+
+    let error_rust_cpp = bottle_rust.subtract(&bottle_cpp).mass();
+    let error_cpp_rust = bottle_cpp.subtract(&bottle_rust).mass();
+
+    assert!(error_rust_cpp < EPSILON);
+    assert!(error_cpp_rust < EPSILON);
+}

crates/occara/tests/meshing.rs

@@ -2,9 +2,11 @@ use occara::{
     geom::{Direction, Point},
     shape::Shape,
 };
+use wasm_bindgen_test::*;
 
-#[test]
+#[wasm_bindgen_test(unsupported = test)]
 fn test_mesh_cylinder() {
+    wasm_libc::init();
     let plane = Point::new(0.0, 0.0, 0.0).plane_axis_with(&Direction::z());
     let mesh = Shape::cylinder(&plane, 1.0, 1.0).mesh();
     let vertices = mesh.vertices();