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/preprocessing/categorical.rs

@@ -224,7 +224,10 @@ mod tests {
     use crate::linalg::basic::matrix::DenseMatrix;
     use crate::preprocessing::series_encoder::CategoryMapper;
 
-    #[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 adjust_idxs() {
         assert_eq!(find_new_idxs(0, &[], &[]), Vec::<usize>::new());
@@ -269,7 +272,10 @@ mod tests {
         (orig, oh_enc)
     }
 
-    #[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 hash_encode_f64_series() {
         let series = vec![3.0, 1.0, 2.0, 1.0];
@@ -280,7 +286,10 @@ mod tests {
         let orig_val: f64 = inv.unwrap().into();
         assert_eq!(orig_val, 2.0);
     }
-    #[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 test_fit() {
         let (x, _) = build_fake_matrix();
@@ -296,7 +305,10 @@ mod tests {
         assert_eq!(num_cat, vec![2, 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 matrix_transform_test() {
         let (x, expected_x) = build_fake_matrix();
@@ -312,7 +324,10 @@ mod tests {
         assert_eq!(nm, expected_x);
     }
 
-    #[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 fail_on_bad_category() {
         let m = DenseMatrix::from_2d_array(&[

src/preprocessing/numerical.rs

@@ -420,7 +420,10 @@ mod tests {
 
         /// Same as `fit_for_random_values` test, but using a `StandardScaler` that has been
         /// serialized and deserialized.
-        #[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 serde_fit_for_random_values() {

src/preprocessing/series_encoder.rs

@@ -199,7 +199,10 @@ where
 mod tests {
     use super::*;
 
-    #[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 from_categories() {
         let fake_categories: Vec<usize> = vec![1, 2, 3, 4, 5, 3, 5, 3, 1, 2, 4];
@@ -218,14 +221,20 @@ mod tests {
         let enc = CategoryMapper::<&str>::from_positional_category_vec(fake_category_pos);
         enc
     }
-    #[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 ordinal_encoding() {
         let enc = build_fake_str_enc();
         assert_eq!(1f64, enc.get_ordinal::<f64>(&"dog").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 category_map_and_vec() {
         let category_map: HashMap<&str, usize> = vec![("background", 0), ("dog", 1), ("cat", 2)]
@@ -240,7 +249,10 @@ mod tests {
         assert_eq!(oh_vec, res);
     }
 
-    #[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 positional_categories_vec() {
         let enc = build_fake_str_enc();
@@ -252,7 +264,10 @@ mod tests {
         assert_eq!(oh_vec, res);
     }
 
-    #[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 invert_label_test() {
         let enc = build_fake_str_enc();
@@ -265,7 +280,10 @@ 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 test_many_categorys() {
         let enc = build_fake_str_enc();