diff --git a/blockset/src/sha224.rs b/blockset/src/sha224.rs
index d8bf4a17..060fb33d 100644
--- a/blockset/src/sha224.rs
+++ b/blockset/src/sha224.rs
@@ -179,4 +179,12 @@ mod tests {
             [0xd14a028c, 0x2a3a2bc9, 0x476102bb, 0x288234c4, 0x15a2b01f, 0x828ea62a, 0xc5b3e42f]
         );
     }
+
+    #[test]
+    fn runtime_test() {
+        assert_eq!(
+            compress([0x8000_0000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]),
+            [0xd14a028c, 0x2a3a2bc9, 0x476102bb, 0x288234c4, 0x15a2b01f, 0x828ea62a, 0xc5b3e42f]
+        );
+    }    
 }