checkgin empty field for events

inMsg_test.go

 	m := ReadEventMsg(msg)
 	AssertEqual(t, m.Event, "CLICK", "Expect Click event")
 	AssertEqual(t, m.EventKey, "MEMBER_SEARCH", "Expect MEMBER_SEARCH")
+	AssertEqual(t, m.Ticket, "", "Expect Empty Ticket")
+	AssertEqual(t, m.Latitude, 0.0, "Expect 0")
+	AssertEqual(t, m.Longitude, 0.0, "Expect 0")
+	AssertEqual(t, m.Precision, 0.0, "Expect 0")
 }
 
 func TestAcceptLocationInfo(t *testing.T) {
 	AssertEqual(t, m.Longitude, 150.960327, "Expect 150.960327")
 	AssertEqual(t, m.Latitude, -33.764935, "Expect -33.764935")
 	AssertEqual(t, m.Precision, 110.000000, "Expect 110.000000")
+	AssertEqual(t, m.EventKey, "", "Expect Empty EventKey")
+	AssertEqual(t, m.Ticket, "", "Expect Empty Ticket")
+
 }
 
 func TestReadEventFollow(t *testing.T) {
 </xml>`
 	m := ReadEventMsg(msg)
 	AssertEqual(t, m.Event, "subscribe", "Expect subscribe")
+	AssertEqual(t, m.EventKey, "", "Expect Empty EventKey")
+	AssertEqual(t, m.Ticket, "", "Expect Empty Ticket")
+	AssertEqual(t, m.Latitude, 0.0, "Expect 0")
+	AssertEqual(t, m.Longitude, 0.0, "Expect 0")
+	AssertEqual(t, m.Precision, 0.0, "Expect 0")
 
 }
 
 	AssertEqual(t, m.Event, "subscribe", "Expect subscribe")
 	AssertEqual(t, m.EventKey, "qrscene_123123", "Expect qrscene_123123")
 	AssertEqual(t, m.Ticket, "TICKET", "Expect TICKET")
+	AssertEqual(t, m.Latitude, 0.0, "Expect 0")
+	AssertEqual(t, m.Longitude, 0.0, "Expect 0")
+	AssertEqual(t, m.Precision, 0.0, "Expect 0")
 
 }
 
 	AssertEqual(t, m.Event, "SCAN", "Expect SCAN")
 	AssertEqual(t, m.EventKey, "SCENE_VALUE", "Expect SCENE_VALUE")
 	AssertEqual(t, m.Ticket, "TICKET", "Expect TICKET")
+	AssertEqual(t, m.Latitude, 0.0, "Expect 0")
+	AssertEqual(t, m.Longitude, 0.0, "Expect 0")
+	AssertEqual(t, m.Precision, 0.0, "Expect 0")
 
 }
 
 	m := ReadEventMsg(msg)
 	AssertEqual(t, m.Event, "VIEW", "Expect VIEW")
 	AssertEqual(t, m.EventKey, "www.qq.com", "Expectwww.qq.com")
-	AssertEqual(t, m.Ticket, "", "Expect empty ")
+	AssertEqual(t, m.Ticket, "", "Expect Empty Ticket")
+	AssertEqual(t, m.Latitude, 0.0, "Expect 0")
+	AssertEqual(t, m.Longitude, 0.0, "Expect 0")
+	AssertEqual(t, m.Precision, 0.0, "Expect 0")
 
 }