Merge pull request #81 from ganmacs/fix-bug-when-nonosecond_precision

to_json should return String type

lib/fluent/logger/fluent_logger.rb

@@ -44,7 +44,7 @@ def self.from_msgpack_ext(data)
       end
 
       def to_json(*args)
-        @sec
+        @sec.to_s
       end
     end
 

spec/fluent_logger_spec.rb

@@ -137,6 +137,16 @@
         }
       end
 
+      context 'when the message has object which does not have #to_msgpack method' do
+        it 'success with nanosecond' do
+          expect(logger_with_nanosec.pending_bytesize).to eq(0)
+          expect(logger_with_nanosec.post('tag', 'a' => Errno::ETIMEDOUT)).to eq(true)
+          fluentd.wait_transfer
+          expect(fluentd.queue.last).to eq(['logger-test.tag', { 'a' => 'Errno::ETIMEDOUT' }])
+          expect(logger_with_nanosec.pending_bytesize).to eq(0)
+        end
+      end
+
       it ('close after post') {
         expect(logger).to be_connect
         logger.close