public async Task TestCreateLabel()
{
LabelModel label = await _sut.CreateLabelAsync("Label_created_by_TestCreateLabel");
Assert.IsNotNull(label);
Assert.IsTrue(label.ID > 0);
Assert.AreEqual("Label_created_by_TestCreateLabel", label.Name);
Assert.IsTrue(label.Order > 0);
await _sut.DeleteLabelAsync(label.ID);
}