Added Ruby to conformance tests.

This involved fixing a few important bugs in the
Ruby implementation -- mostly cases of mixing
upb field types and descriptor types (upb field
types do not distinguish between int/sint/fixed/sfixed
like descriptor types do).

Also added protobuf-specific exceptions so parse
errors can be caught specifically.

Change-Id: Ib49d3db976900b2c6f3455c8b88af52cfb86e036

1 files changed, 9 insertions, 0 deletions

diff --git a/ruby/lib/google/protobuf.rb b/ruby/lib/google/protobuf.rb
index 99b17929..74ea770d 100644
--- a/ruby/lib/google/protobuf.rb
+++ b/ruby/lib/google/protobuf.rb
@@ -31,6 +31,15 @@
 # require mixins before we hook them into the java & c code
 require 'google/protobuf/message_exts'
 
+# We define these before requiring the platform-specific modules.
+# That way the module init can grab references to these.
+module Google
+  module Protobuf
+    class Error < RuntimeError; end
+    class ParseError < Error; end
+  end
+end
+
 if RUBY_PLATFORM == "java"
   require 'json'
   require 'google/protobuf_java'