diff --git a/issues/249/core/src/lib.rs b/issues/249/core/src/lib.rs
index 3ba42ed7..2828977e 100644
--- a/issues/249/core/src/lib.rs
+++ b/issues/249/core/src/lib.rs
@@ -4,4 +4,14 @@ pub fn clone_a_model<M>(model: &M) -> M
 where
 	M: ModelTrait {
 	model.clone()
+}
+
+#[cfg(test)]
+mod tests {
+	use super::*;
+
+	#[test]
+	fn test() {
+		println!("OK");
+	}
 }
\ No newline at end of file