1 files changed, 6 insertions, 0 deletions
diff --git a/src/tests/test_hash.cpp b/src/tests/test_hash.cpp
index cd0fb785b..6077bf906 100644
--- a/src/tests/test_hash.cpp
+++ b/src/tests/test_hash.cpp
@@ -19,6 +19,12 @@ size_t hash_test(const std::string& algo,
    const auto providers = af.providers_of(algo);
    size_t fails = 0;
 
+   if(providers.empty())
+      {
+      std::cout << "Unknown algo " << algo << "\n";
+      ++fails;
+      }
+
    for(auto provider: providers)
       {
       auto proto = af.prototype_hash_function(algo, provider);