Log ParseError raised in BadStatus#to_rpc_status

src/ruby/lib/grpc/errors.rb

@@ -63,7 +63,9 @@ module GRPC
       return if status.nil?
 
       GoogleRpcStatusUtils.extract_google_rpc_status(status)
-    rescue
+    rescue Google::Protobuf::ParseError => parse_error
+      GRPC.logger.warn('parse error: to_rpc_status failed')
+      GRPC.logger.warn(parse_error)
       nil
     end
 

src/ruby/spec/errors_spec.rb

@@ -127,6 +127,14 @@ describe GRPC::BadStatus do
       exception = GRPC::BadStatus.new(code, details, metadata)
 
       expect(exception.to_rpc_status).to be nil
+
+      # Check that the parse error was logged correctly
+      log_contents = @log_output.read
+      expected_line_1 = 'WARN  GRPC : parse error: to_rpc_status failed'
+      expected_line_2 = 'WARN  GRPC : <Google::Protobuf::ParseError> ' \
+        'Error occurred during parsing: Invalid wire type'
+      expect(log_contents).to include expected_line_1
+      expect(log_contents).to include expected_line_2
     end
   end
 end