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/math/distance/euclidian.rs

@@ -57,6 +57,7 @@ impl<T: RealNumber> Distance<Vec<T>, T> for Euclidian {
 mod tests {
     use super::*;
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn squared_distance() {
         let a = vec![1., 2., 3.];

src/math/distance/hamming.rs

@@ -52,6 +52,7 @@ impl<T: PartialEq, F: RealNumber> Distance<Vec<T>, F> for Hamming {
 mod tests {
     use super::*;
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn hamming_distance() {
         let a = vec![1, 0, 0, 1, 0, 0, 1];

src/math/distance/mahalanobis.rs

@@ -133,6 +133,7 @@ mod tests {
     use super::*;
     use crate::linalg::naive::dense_matrix::*;
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn mahalanobis_distance() {
         let data = DenseMatrix::from_2d_array(&[

src/math/distance/manhattan.rs

@@ -48,6 +48,7 @@ impl<T: RealNumber> Distance<Vec<T>, T> for Manhattan {
 mod tests {
     use super::*;
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn manhattan_distance() {
         let a = vec![1., 2., 3.];

src/math/distance/minkowski.rs

@@ -61,6 +61,7 @@ impl<T: RealNumber> Distance<Vec<T>, T> for Minkowski {
 mod tests {
     use super::*;
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn minkowski_distance() {
         let a = vec![1., 2., 3.];