feat: added support to wasm (#94)

* test: run tests also in wasm targets

* fix: install rand with wasm-bindgen por wasm targets

* fix: use actual usize size to access buffer.

* fix: do not run functions that create files in wasm.

* test: do not run in wasm test that panics.

Co-authored-by: Luis Moreno <morenol@users.noreply.github.com>

src/svm/mod.rs

@@ -159,6 +159,7 @@ impl<T: RealNumber, V: BaseVector<T>> Kernel<T, V> for SigmoidKernel<T> {
 mod tests {
     use super::*;
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn linear_kernel() {
         let v1 = vec![1., 2., 3.];
@@ -167,6 +168,7 @@ mod tests {
         assert_eq!(32f64, Kernels::linear().apply(&v1, &v2));
     }
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn rbf_kernel() {
         let v1 = vec![1., 2., 3.];
@@ -175,6 +177,7 @@ mod tests {
         assert!((0.2265f64 - Kernels::rbf(0.055).apply(&v1, &v2)).abs() < 1e-4);
     }
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn polynomial_kernel() {
         let v1 = vec![1., 2., 3.];
@@ -186,6 +189,7 @@ mod tests {
         );
     }
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn sigmoid_kernel() {
         let v1 = vec![1., 2., 3.];

src/svm/svc.rs

@@ -729,6 +729,7 @@ mod tests {
     #[cfg(feature = "serde")]
     use crate::svm::*;
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn svc_fit_predict() {
         let x = DenseMatrix::from_2d_array(&[
@@ -771,6 +772,7 @@ mod tests {
         assert!(accuracy(&y_hat, &y) >= 0.9);
     }
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn svc_fit_predict_rbf() {
         let x = DenseMatrix::from_2d_array(&[
@@ -814,6 +816,7 @@ mod tests {
         assert!(accuracy(&y_hat, &y) >= 0.9);
     }
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     #[cfg(feature = "serde")]
     fn svc_serde() {

src/svm/svr.rs

@@ -536,6 +536,7 @@ mod tests {
     #[cfg(feature = "serde")]
     use crate::svm::*;
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn svr_fit_predict() {
         let x = DenseMatrix::from_2d_array(&[
@@ -569,6 +570,7 @@ mod tests {
         assert!(mean_squared_error(&y_hat, &y) < 2.5);
     }
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     #[cfg(feature = "serde")]
     fn svr_serde() {