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/algorithm/neighbour/bbd_tree.rs

@@ -314,6 +314,7 @@ mod tests {
     use super::*;
     use crate::linalg::naive::dense_matrix::DenseMatrix;
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn bbdtree_iris() {
         let data = DenseMatrix::from_2d_array(&[

src/algorithm/neighbour/cover_tree.rs

@@ -466,6 +466,7 @@ mod tests {
         }
     }
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn cover_tree_test() {
         let data = vec![1, 2, 3, 4, 5, 6, 7, 8, 9];
@@ -482,7 +483,7 @@ mod tests {
         let knn: Vec<i32> = knn.iter().map(|v| *v.2).collect();
         assert_eq!(vec!(3, 4, 5, 6, 7), knn);
     }
-
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn cover_tree_test1() {
         let data = vec![
@@ -501,7 +502,7 @@ mod tests {
 
         assert_eq!(vec!(0, 1, 2), knn);
     }
-
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     #[cfg(feature = "serde")]
     fn serde() {

src/algorithm/neighbour/linear_search.rs

@@ -150,6 +150,7 @@ mod tests {
         }
     }
 
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn knn_find() {
         let data1 = vec![1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
@@ -196,7 +197,7 @@ mod tests {
 
         assert_eq!(vec!(1, 2, 3), found_idxs2);
     }
-
+    #[cfg_attr(target_arch = "wasm32", wasm_bindgen_test::wasm_bindgen_test)]
     #[test]
     fn knn_point_eq() {
         let point1 = KNNPoint {