package err_group import ( "testing" "time" ) func TestGetAllCityWeatherData(t *testing.T) { list, err := GetAllCityWeatherData(500 * time.Millisecond) if err != nil { t.Fatal(err) } for _, data := range list { t.Logf("%s: %s, %d", data.City, data.Weather, data.Temp) } }