gistfile1.txt

diff --git a/test/simperium/channel_test.js b/test/simperium/channel_test.js
index 0db6fae..d409aba 100644
--- a/test/simperium/channel_test.js
+++ b/test/simperium/channel_test.js
@@ -437,6 +437,30 @@ describe( 'Channel', function() {
 					done()
 				} );
 			} );
+
+			it( 'should handle a 409', ( done ) =>{
+				channel.localQueue.sent['mock-id'] = { fake: 'change', ccid: 'dup-ccid' }
+
+				/**
+				 * If the 409 is not handled the bucket will error
+				 */
+				bucket.once( 'error', ( e ) => {
+					done( e );
+				} );
+
+				/**
+				 * After successfully handling the 409 we should have an acknowledged
+				 * local change.
+				 */
+				channel.once( 'acknowledge', ( id, change ) => {
+					done();
+				} );
+
+				/**
+				 * Simulate receiving a 409
+				 */
+				channel.handleMessage( 'c:[{"error": 409, "ccid":"dup-ccid", "id": "mock-id"}]' );
+			} );
 		} );
 	} );