api/restore: more robust unit test

Test against fixtures.

Author: benma

src/rust/bitbox02-rust/src/hww/api/restore.rs

@@ -212,6 +212,15 @@ mod tests {
         assert_eq!(counter, 2);
         assert!(!keystore::is_locked());
         assert!(memory::is_initialized());
-        assert!(keystore::copy_seed().unwrap().len() == 32);
+        // Seed of hardcoded phrase used in unit tests:
+        // boring mistake dish oyster truth pigeon viable emerge sort crash wire portion cannon couple enact box walk height pull today solid off enable tide
+        assert_eq!(
+            hex::encode(keystore::copy_seed().unwrap()),
+            "19f1bcfccf3e9d497cd245cf864ff0d42216625258d4f68d56b571aceb329257"
+        );
+        assert_eq!(
+            hex::encode(keystore::copy_bip39_seed().unwrap()),
+            "257724bccc8858cfe565b456b01263a4a6a45184fab4531f5c199649207a74e74c399a01d4f957258c05cee818369b31404c884a4b7a29ff6886bae6700fb56a"
+        );
     }
 }