Added failing test when special member names (X or a) are used.
diff --git a/tests/special_characters/funny-proto+name has.characters.proto b/tests/special_characters/funny-proto+name has.characters.proto
index 26b2cb1..f5170c8 100644
--- a/tests/special_characters/funny-proto+name has.characters.proto
+++ b/tests/special_characters/funny-proto+name has.characters.proto
@@ -1 +1,21 @@
syntax="proto2";
+
+message WorkingMessage {
+ required int32 b = 1;
+ required int32 Z = 2;
+}
+
+message FailingMessageBecauseMembersAreMacroParameter {
+ required int32 a = 1;
+ required int32 X = 2;
+}
+
+message TestMacroParametersAndUnderscores {
+ required int32 a = 1;
+ required int32 a_ = 2;
+ required int32 X = 3;
+ required int32 X_ = 4;
+ required int32 X__ = 5;
+ required int32 X___ = 6;
+ required int32 X____ = 7;
+}
