Merge pull request #3 from PM-Connect/improvements

Improvements

Author: ubiuser

mixpanel.go

@@ -228,7 +228,8 @@ func (m *mixpanel) send(eventType string, params interface{}, autoGeolocate bool
 	json.Unmarshal(body, &jsonBody)
 
 	if jsonBody.Status != 1 {
-		return wrapErr(&ErrTrackFailed{Message: jsonBody.Error})
+		errMsg := fmt.Sprintf("error=%s; status=%d; httpCode=%d", jsonBody.Error, jsonBody.Status, resp.StatusCode)
+		return wrapErr(&ErrTrackFailed{Message: errMsg})
 	}
 
 	return nil

mock.go

@@ -104,12 +104,12 @@ func (m *Mock) Update(distinctId string, u *Update) error {
 	}
 
 	switch u.Operation {
-	case "$set":
+	case "$set", "$set_once":
 		for key, val := range u.Properties {
 			p.Properties[key] = val
 		}
 	default:
-		return errors.New("mixpanel.Mock only supports the $set operation")
+		return errors.New("mixpanel.Mock only supports the $set and $set_once operations")
 	}
 
 	return nil