array tests

src/rstd/atomic/array.rs

@@ -55,3 +55,29 @@ impl<const N: usize> CInliningAtomic for [u8; N] {
 impl<const N: usize> ConstSizeAtomic for [u8; N] {
     const SIZE: usize = N;
 }
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn cannot_parse_array() {
+        assert_eq!(<[u8; 3]>::parse_slice(&[1, 2, 3]).unwrap(), [1, 2, 3]);
+    }
+
+    #[test]
+    fn cannot_parse_undersized_slice() {
+        assert_eq!(
+            <[u8; 2]>::parse_slice(&[0, 0, 0, 0]).unwrap_err(),
+            ArrayParseError::ExtraData(2),
+        );
+    }
+
+    #[test]
+    fn cannot_parse_oversized_slice() {
+        assert_eq!(
+            <[u8; 4]>::parse_slice(&[0, 0]).unwrap_err(),
+            ArrayParseError::Eof
+        );
+    }
+}