1 files changed, 12 insertions, 0 deletions
diff --git a/codegen/src/ext.rs b/codegen/src/ext.rs
index 94fdd51..d489bf0 100644
--- a/codegen/src/ext.rs
+++ b/codegen/src/ext.rs
@@ -396,3 +396,15 @@ fn expand_state_table<'cx>(
 
     MacEager::expr(ast)
 }
+
+#[cfg(test)]
+mod tests {
+    use definitions::{State, Action};
+    use super::Transition;
+
+    #[test]
+    fn pack_u8() {
+        let transition = Transition::StateAction(State::CsiParam, Action::Collect);
+        assert_eq!(transition.pack_u8(), 0x24);
+    }
+}