Added unit test for PascalCasing package names in Ruby.
diff --git a/ruby/tests/generated_code.proto b/ruby/tests/generated_code.proto
index 42d82a6..62fd83e 100644
--- a/ruby/tests/generated_code.proto
+++ b/ruby/tests/generated_code.proto
@@ -1,6 +1,6 @@
 syntax = "proto3";
 
-package A.B.C;
+package a.b.c;
 
 message TestMessage {
   int32 optional_int32 = 1;