diff --git a/lib/remote_http_testing.rb b/lib/remote_http_testing.rb
index 4092d43..c75f0c0 100644
--- a/lib/remote_http_testing.rb
+++ b/lib/remote_http_testing.rb
@@ -143,4 +143,8 @@ def adjust_response_encoding(response)
     end
     response
   end
+
+  def assert_block(msg = nil)
+    assert yield, msg
+  end
 end