func BeforeEach() {
mongo, _ := datasource.NewMongo("config.yml", "staging")
articleService = ArticleService{MongoService: MongoService{Mongo: *mongo}}
}
func UserBeforeEach() {
mongo, _ := datasource.NewMongo("config.yml", "staging")
userService = UserService{MongoService: MongoService{Mongo: *mongo}}
}