Add tests for Array::cast_slice_to_core(_mut) (#187)

Author: tarcieri

tests/mod.rs

@@ -26,6 +26,24 @@ fn cast_slice_from_core_mut() {
     assert_eq!(slice[1], Array([3, 4]));
 }
 
+#[test]
+fn cast_slice_to_core() {
+    type A = Array<u8, U2>;
+    let arr = [Array([1, 2]), Array([3, 4])];
+    let slice = A::cast_slice_to_core(&arr);
+    assert_eq!(slice[0], [1, 2]);
+    assert_eq!(slice[1], [3, 4]);
+}
+
+#[test]
+fn cast_slice_to_core_mut() {
+    type A = Array<u8, U2>;
+    let mut arr = [Array([1, 2]), Array([3, 4])];
+    let slice = A::cast_slice_to_core_mut(&mut arr);
+    assert_eq!(slice[0], [1, 2]);
+    assert_eq!(slice[1], [3, 4]);
+}
+
 #[test]
 fn tryfrom_slice_for_clonable_array() {
     assert!(Array::<u8, U0>::try_from(EXAMPLE_SLICE).is_err());