public async Task GetTownTest() { await Assert.ThrowsAsync <ArgumentException>(() => JdVopApi.GetTownAsync(null, 0)); var res = await ApiInstance.GetTownAsync(TestHelper.JDArress.CountyId); Assert.True(res.Success, res.ResultMessage); var town = res.Result; Assert.NotNull(town); Assert.NotEmpty(town); Assert.Contains(TestHelper.JDArress.Town, town.Keys); }