document and compare test

Author: cpetig

tests/runtime/fixed-size-list/runner.rs

@@ -3,6 +3,6 @@ include!(env!("BINDINGS"));
 use test::fixed_size_lists::to_test::*;
 
 fn main() {
-    list_param([1,2,3,4]);
-    list_param2([[1,2],[3,4]]);
+    list_param([1, 2, 3, 4]);
+    list_param2([[1, 2], [3, 4]]);
 }

tests/runtime/fixed-size-list/test.rs

@@ -5,7 +5,11 @@ struct Component;
 export!(Component);
 
 impl exports::test::fixed_size_lists::to_test::Guest for Component {
-    fn list_param(_a: [u32; 4]) {}
-    fn list_param2(_a: [[u32; 2]; 2]) {}
+    fn list_param(a: [u32; 4]) {
+        assert_eq!(a, [1, 2, 3, 4]);
+    }
+    fn list_param2(a: [[u32; 2]; 2]) {
+        assert_eq!(a, [[1, 2], [3, 4]]);
+    }
     // fn list_param3(_a: [i32; 20]) {}
 }

tests/runtime/fixed-size-list/test.wit

@@ -1,3 +1,5 @@
+// run with "--runner wasmtime -W component-model-fixed-size-list"
+
 package test:fixed-size-lists;
 
 interface to-test {