Fix generator crash with Enum inside Oneof (issue #188).

Add testcase for the same.

2 files changed, 35 insertions, 0 deletions

diff --git a/tests/regression/issue_188/SConscript b/tests/regression/issue_188/SConscript
new file mode 100644
index 00000000..6bc32712
--- /dev/null
+++ b/tests/regression/issue_188/SConscript
@@ -0,0 +1,6 @@
+# Regression test for issue with Enums inside OneOf.
+
+Import('env')
+
+env.NanopbProto('oneof')
+
diff --git a/tests/regression/issue_188/oneof.proto b/tests/regression/issue_188/oneof.proto
new file mode 100644
index 00000000..e37f5c02
--- /dev/null
+++ b/tests/regression/issue_188/oneof.proto
@@ -0,0 +1,29 @@
+syntax = "proto2";
+
+message MessageOne
+{
+    required uint32 one = 1;
+    required uint32 two = 2;
+    required uint32 three = 3;
+    required int32 four = 4;
+}
+
+enum EnumTwo
+{
+    SOME_ENUM_1 = 1;
+    SOME_ENUM_2 = 5;
+    SOME_ENUM_3 = 6;
+    SOME_ENUM_4 = 9;
+    SOME_ENUM_5 = 10;
+    SOME_ENUM_6 = 12;
+    SOME_ENUM_7 = 39;  
+    SOME_ENUM_8 = 401;
+}
+
+message OneofMessage
+{
+    oneof payload {
+        MessageOne message = 1;
+        EnumTwo enum = 2;
+    }
+}