Support Wasi as target (#216)

* Improve features
* Add wasm32-wasi as a target
* Update .github/workflows/ci.yml
Co-authored-by: morenol <22335041+morenol@users.noreply.github.com>

src/svm/mod.rs

@@ -269,7 +269,10 @@ mod tests {
     use super::*;
     use crate::svm::Kernels;
 
-    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+    #[cfg_attr(
+        all(target_arch = "wasm32", not(target_os = "wasi")),
+        wasm_bindgen_test::wasm_bindgen_test
+    )]
     #[test]
     fn linear_kernel() {
         let v1 = vec![1., 2., 3.];
@@ -278,7 +281,10 @@ mod tests {
         assert_eq!(32f64, Kernels::linear().apply(&v1, &v2).unwrap());
     }
 
-    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+    #[cfg_attr(
+        all(target_arch = "wasm32", not(target_os = "wasi")),
+        wasm_bindgen_test::wasm_bindgen_test
+    )]
     #[test]
     fn rbf_kernel() {
         let v1 = vec![1., 2., 3.];
@@ -293,7 +299,10 @@ mod tests {
         assert!((0.2265f64 - result) < 1e-4);
     }
 
-    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+    #[cfg_attr(
+        all(target_arch = "wasm32", not(target_os = "wasi")),
+        wasm_bindgen_test::wasm_bindgen_test
+    )]
     #[test]
     fn polynomial_kernel() {
         let v1 = vec![1., 2., 3.];
@@ -308,7 +317,10 @@ mod tests {
         assert!((4913f64 - result) < std::f64::EPSILON);
     }
 
-    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+    #[cfg_attr(
+        all(target_arch = "wasm32", not(target_os = "wasi")),
+        wasm_bindgen_test::wasm_bindgen_test
+    )]
     #[test]
     fn sigmoid_kernel() {
         let v1 = vec![1., 2., 3.];

src/svm/svc.rs

@@ -948,7 +948,10 @@ mod tests {
     #[cfg(feature = "serde")]
     use crate::svm::*;
 
-    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+    #[cfg_attr(
+        all(target_arch = "wasm32", not(target_os = "wasi")),
+        wasm_bindgen_test::wasm_bindgen_test
+    )]
     #[test]
     fn svc_fit_predict() {
         let x = DenseMatrix::from_2d_array(&[
@@ -996,7 +999,10 @@ mod tests {
         );
     }
 
-    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+    #[cfg_attr(
+        all(target_arch = "wasm32", not(target_os = "wasi")),
+        wasm_bindgen_test::wasm_bindgen_test
+    )]
     #[test]
     fn svc_fit_decision_function() {
         let x = DenseMatrix::from_2d_array(&[&[4.0, 0.0], &[0.0, 4.0], &[8.0, 0.0], &[0.0, 8.0]]);
@@ -1034,7 +1040,10 @@ mod tests {
         assert!(num::Float::abs(y_hat[0]) <= 0.1);
     }
 
-    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+    #[cfg_attr(
+        all(target_arch = "wasm32", not(target_os = "wasi")),
+        wasm_bindgen_test::wasm_bindgen_test
+    )]
     #[test]
     fn svc_fit_predict_rbf() {
         let x = DenseMatrix::from_2d_array(&[
@@ -1083,7 +1092,10 @@ mod tests {
         );
     }
 
-    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+    #[cfg_attr(
+        all(target_arch = "wasm32", not(target_os = "wasi")),
+        wasm_bindgen_test::wasm_bindgen_test
+    )]
     #[test]
     #[cfg(feature = "serde")]
     fn svc_serde() {

src/svm/svr.rs

@@ -719,7 +719,7 @@ mod tests {
     // }
 
     // TODO: had to disable this test as it runs for too long
-    // #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+    // #[cfg_attr(all(target_arch = "wasm32", not(target_os = "wasi")), wasm_bindgen_test::wasm_bindgen_test)]
     // #[test]
     // fn svr_fit_predict() {
     //     let x = DenseMatrix::from_2d_array(&[
@@ -758,7 +758,7 @@ mod tests {
     //     assert!(mean_squared_error(&y_hat, &y) < 2.5);
     // }
 
-    // #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
+    // #[cfg_attr(all(target_arch = "wasm32", not(target_os = "wasi")), wasm_bindgen_test::wasm_bindgen_test)]
     // #[test]
     // #[cfg(feature = "serde")]
     // fn svr_serde() {