diff --git a/jh/tests/mod.rs b/jh/tests/mod.rs
index 1b7aeba4..a37aea7a 100644
--- a/jh/tests/mod.rs
+++ b/jh/tests/mod.rs
@@ -1,4 +1,9 @@
-use digest::{dev::fixed_test, hash_serialization_test, new_test};
+use digest::{
+    Digest,
+    dev::{feed_rand_16mib, fixed_test},
+    hash_serialization_test, new_test,
+};
+use hex_literal::hex;
 
 new_test!(jh224_long_kat, jh::Jh224, fixed_test);
 new_test!(jh256_long_kat, jh::Jh256, fixed_test);
@@ -14,3 +19,44 @@ hash_serialization_test!(jh224_serialization, jh::Jh224);
 hash_serialization_test!(jh256_serialization, jh::Jh256);
 hash_serialization_test!(jh384_serialization, jh::Jh384);
 hash_serialization_test!(jh512_serialization, jh::Jh512);
+
+macro_rules! test_jh_rand {
+    ($name:ident, $hasher:ty, $expected:expr) => {
+        #[test]
+        fn $name() {
+            let mut h = <$hasher>::new();
+            feed_rand_16mib(&mut h);
+            assert_eq!(&h.finalize()[..], &$expected[..]);
+        }
+    };
+}
+
+test_jh_rand!(
+    jh224_rand,
+    jh::Jh224,
+    hex!("7a4e35b939ccbf71d7bc8243e87871d0891a845d09197ac4a0bc3af1")
+);
+
+test_jh_rand!(
+    jh256_rand,
+    jh::Jh256,
+    hex!("553d2d32bea1224d56e59df45d07f8b464535154e702119d90a23510d7489f5e")
+);
+
+test_jh_rand!(
+    jh384_rand,
+    jh::Jh384,
+    hex!(
+        "ba049c6c00f8ef651861db921588b41d8d6ce3faf94c2ffb1bdbf91cefcac6d2"
+        "f5d5510cb1b3e94ba529fb6a9e29a8e5"
+    )
+);
+
+test_jh_rand!(
+    jh512_rand,
+    jh::Jh512,
+    hex!(
+        "692b44c9fa2c3982060c85cbcdfde6015ade526ef6aad5218ed8d1cdcb42f389"
+        "6e21a345db74c83faa042ef4f996cf5e8478dcd3f03b87025bd3edc78beab126"
+    )
+);