Files
SnowMaidenProject/SnowMaidenContracts/SnowMaidenTests/BusinessLogicsContractsTests/IceCreamBusinessLogicContractTests.cs

484 lines
21 KiB
C#

using SnowMaidenBusinessLogic.Implementations;
using SnowMaidenContracts.DataModels;
using SnowMaidenContracts.Enums;
using SnowMaidenContracts.Exceptions;
using SnowMaidenContracts.StoragesContracts;
using Microsoft.Extensions.Logging;
using Moq;
using SnowMaidenContracts.BusinessLogicsContracts;
namespace SnowMaidenTests.BusinessLogicsContractsTests;
[TestFixture]
internal class IceCreamBusinessLogicContractTests
{
private IceCreamBusinessLogicContract _icecreamBusinessLogicContract;
private Mock<IIceCreamStorageContract> _icecreamStorageContract;
[OneTimeSetUp]
public void OneTimeSetUp()
{
_icecreamStorageContract = new Mock<IIceCreamStorageContract>();
_icecreamBusinessLogicContract = new IceCreamBusinessLogicContract(_icecreamStorageContract.Object, new Mock<ILogger>().Object);
}
[SetUp]
public void SetUp()
{
_icecreamStorageContract.Reset();
}
[Test]
public void GetAllProducts_ReturnListOfRecords_Test()
{
//Arrange
var listOriginal = new List<IceCreamDataModel>()
{
new(Guid.NewGuid().ToString(), "name 1", IceCreamType.Sherbet, Guid.NewGuid().ToString(), 10, false),
new(Guid.NewGuid().ToString(), "name 2", IceCreamType.Sherbet, Guid.NewGuid().ToString(), 10, true),
new(Guid.NewGuid().ToString(), "name 3", IceCreamType.Sherbet, Guid.NewGuid().ToString(), 10, false),
};
_icecreamStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>())).Returns(listOriginal);
//Act
var listOnlyActive = _icecreamBusinessLogicContract.GetAllProducts(true);
var list = _icecreamBusinessLogicContract.GetAllProducts(false);
//Assert
Assert.Multiple(() =>
{
Assert.That(listOnlyActive, Is.Not.Null);
Assert.That(list, Is.Not.Null);
Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
Assert.That(list, Is.EquivalentTo(listOriginal));
});
_icecreamStorageContract.Verify(x => x.GetList(true, null), Times.Once);
_icecreamStorageContract.Verify(x => x.GetList(false, null), Times.Once);
}
[Test]
public void GetAllProducts_ReturnEmptyList_Test()
{
//Arrange
_icecreamStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>())).Returns([]);
//Act
var listOnlyActive = _icecreamBusinessLogicContract.GetAllProducts(true);
var list = _icecreamBusinessLogicContract.GetAllProducts(false);
//Assert
Assert.Multiple(() =>
{
Assert.That(listOnlyActive, Is.Not.Null);
Assert.That(list, Is.Not.Null);
Assert.That(listOnlyActive, Has.Count.EqualTo(0));
Assert.That(list, Has.Count.EqualTo(0));
});
_icecreamStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), null), Times.Exactly(2));
}
[Test]
public void GetAllProducts_ReturnNull_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.GetAllProducts(It.IsAny<bool>()), Throws.TypeOf<NullListException>());
_icecreamStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>()), Times.Once);
}
[Test]
public void GetAllProducts_StorageThrowError_ThrowException_Test()
{
//Arrange
_icecreamStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.GetAllProducts(It.IsAny<bool>()), Throws.TypeOf<StorageException>());
_icecreamStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>()), Times.Once);
}
[Test]
public void GetAllProductsByManufacturer_ReturnListOfRecords_Test()
{
//Arrange
var manufacturerId = Guid.NewGuid().ToString();
var listOriginal = new List<IceCreamDataModel>()
{
new(Guid.NewGuid().ToString(), "name 1",IceCreamType.Sherbet, Guid.NewGuid().ToString(), 10, false),
new(Guid.NewGuid().ToString(), "name 2", IceCreamType.Sherbet, Guid.NewGuid().ToString(), 10, true),
new(Guid.NewGuid().ToString(), "name 3", IceCreamType.Sherbet, Guid.NewGuid().ToString(), 10, false),
};
_icecreamStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>())).Returns(listOriginal);
//Act
var listOnlyActive = _icecreamBusinessLogicContract.GetAllProductsByManufacturer(manufacturerId, true);
var list = _icecreamBusinessLogicContract.GetAllProductsByManufacturer(manufacturerId, false);
//Assert
Assert.Multiple(() =>
{
Assert.That(listOnlyActive, Is.Not.Null);
Assert.That(list, Is.Not.Null);
Assert.That(listOnlyActive, Is.EquivalentTo(listOriginal));
Assert.That(list, Is.EquivalentTo(listOriginal));
});
_icecreamStorageContract.Verify(x => x.GetList(true, manufacturerId), Times.Once);
_icecreamStorageContract.Verify(x => x.GetList(false, manufacturerId), Times.Once);
}
[Test]
public void GetAllProductsByManufacturer_ReturnEmptyList_Test()
{
//Arrange
var manufacturerId = Guid.NewGuid().ToString();
_icecreamStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>())).Returns([]);
//Act
var listOnlyActive = _icecreamBusinessLogicContract.GetAllProductsByManufacturer(manufacturerId, true);
var list = _icecreamBusinessLogicContract.GetAllProductsByManufacturer(manufacturerId, false);
//Assert
Assert.Multiple(() =>
{
Assert.That(listOnlyActive, Is.Not.Null);
Assert.That(list, Is.Not.Null);
Assert.That(listOnlyActive, Has.Count.EqualTo(0));
Assert.That(list, Has.Count.EqualTo(0));
});
_icecreamStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), manufacturerId), Times.Exactly(2));
}
[Test]
public void GetAllProductsByManufacturer_ManufacturerIdIsNullOrEmpty_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.GetAllProductsByManufacturer(null, It.IsAny<bool>()), Throws.TypeOf<ArgumentNullException>());
Assert.That(() => _icecreamBusinessLogicContract.GetAllProductsByManufacturer(string.Empty, It.IsAny<bool>()), Throws.TypeOf<ArgumentNullException>());
_icecreamStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>()), Times.Never);
}
[Test]
public void GetAllProductsByManufacturer_ManufacturerIdIsNotGuid_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.GetAllProductsByManufacturer("manufacturerId", It.IsAny<bool>()), Throws.TypeOf<ValidationException>());
_icecreamStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>()), Times.Never);
}
[Test]
public void GetAllProductsByManufacturer_ReturnNull_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.GetAllProductsByManufacturer(Guid.NewGuid().ToString(), It.IsAny<bool>()), Throws.TypeOf<NullListException>());
_icecreamStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>()), Times.Once);
}
[Test]
public void GetAllProductsByManufacturer_StorageThrowError_ThrowException_Test()
{
//Arrange
_icecreamStorageContract.Setup(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.GetAllProductsByManufacturer(Guid.NewGuid().ToString(), It.IsAny<bool>()), Throws.TypeOf<StorageException>());
_icecreamStorageContract.Verify(x => x.GetList(It.IsAny<bool>(), It.IsAny<string>()), Times.Once);
}
[Test]
public void GetProductHistoryByProduct_ReturnListOfRecords_Test()
{
//Arrange
var productId = Guid.NewGuid().ToString();
var listOriginal = new List<IceCreamHistoryDataModel>()
{
new(Guid.NewGuid().ToString(), 10),
new(Guid.NewGuid().ToString(), 15),
new(Guid.NewGuid().ToString(), 10),
};
_icecreamStorageContract.Setup(x => x.GetHistoryByProductId(It.IsAny<string>())).Returns(listOriginal);
//Act
var list = _icecreamBusinessLogicContract.GetProductHistoryByProduct(productId);
//Assert
Assert.That(list, Is.Not.Null);
Assert.That(list, Is.EquivalentTo(listOriginal));
_icecreamStorageContract.Verify(x => x.GetHistoryByProductId(productId), Times.Once);
}
[Test]
public void GetProductHistoryByProduct_ReturnEmptyList_Test()
{
//Arrange
_icecreamStorageContract.Setup(x => x.GetHistoryByProductId(It.IsAny<string>())).Returns([]);
//Act
var list = _icecreamBusinessLogicContract.GetProductHistoryByProduct(Guid.NewGuid().ToString());
//Assert
Assert.That(list, Is.Not.Null);
Assert.That(list, Has.Count.EqualTo(0));
_icecreamStorageContract.Verify(x => x.GetHistoryByProductId(It.IsAny<string>()), Times.Once);
}
[Test]
public void GetProductHistoryByProduct_ProductIdIsNullOrEmpty_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.GetProductHistoryByProduct(null), Throws.TypeOf<ArgumentNullException>());
Assert.That(() => _icecreamBusinessLogicContract.GetProductHistoryByProduct(string.Empty), Throws.TypeOf<ArgumentNullException>());
_icecreamStorageContract.Verify(x => x.GetHistoryByProductId(It.IsAny<string>()), Times.Never);
}
[Test]
public void GetProductHistoryByProduct_ProductIdIsNotGuid_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.GetProductHistoryByProduct("productId"), Throws.TypeOf<ValidationException>());
_icecreamStorageContract.Verify(x => x.GetHistoryByProductId(It.IsAny<string>()), Times.Never);
}
[Test]
public void GetProductHistoryByProduct_ReturnNull_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.GetProductHistoryByProduct(Guid.NewGuid().ToString()), Throws.TypeOf<NullListException>());
_icecreamStorageContract.Verify(x => x.GetHistoryByProductId(It.IsAny<string>()), Times.Once);
}
[Test]
public void GetProductHistoryByProduct_StorageThrowError_ThrowException_Test()
{
//Arrange
_icecreamStorageContract.Setup(x => x.GetHistoryByProductId(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.GetProductHistoryByProduct(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
_icecreamStorageContract.Verify(x => x.GetHistoryByProductId(It.IsAny<string>()), Times.Once);
}
[Test]
public void GetProductByData_GetById_ReturnRecord_Test()
{
//Arrange
var id = Guid.NewGuid().ToString();
var record = new IceCreamDataModel(id, "name", IceCreamType.Sherbet, Guid.NewGuid().ToString(), 10, false);
_icecreamStorageContract.Setup(x => x.GetElementById(id)).Returns(record);
//Act
var element = _icecreamBusinessLogicContract.GetProductByData(id);
//Assert
Assert.That(element, Is.Not.Null);
Assert.That(element.Id, Is.EqualTo(id));
_icecreamStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
}
[Test]
public void GetProductByData_GetByName_ReturnRecord_Test()
{
//Arrange
var name = "name";
var record = new IceCreamDataModel(Guid.NewGuid().ToString(), name, IceCreamType.Popsicle, Guid.NewGuid().ToString(), 10, false);
_icecreamStorageContract.Setup(x => x.GetElementByName(name)).Returns(record);
//Act
var element = _icecreamBusinessLogicContract.GetProductByData(name);
//Assert
Assert.That(element, Is.Not.Null);
Assert.That(element.IceCreamName, Is.EqualTo(name));
_icecreamStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
}
[Test]
public void GetProductByData_EmptyData_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.GetProductByData(null), Throws.TypeOf<ArgumentNullException>());
Assert.That(() => _icecreamBusinessLogicContract.GetProductByData(string.Empty), Throws.TypeOf<ArgumentNullException>());
_icecreamStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
_icecreamStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Never);
}
[Test]
public void GetProductByData_GetById_NotFoundRecord_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.GetProductByData(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
_icecreamStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
}
[Test]
public void GetProductByData_GetByName_NotFoundRecord_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.GetProductByData("name"), Throws.TypeOf<ElementNotFoundException>());
_icecreamStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
}
[Test]
public void GetProductByData_StorageThrowError_ThrowException_Test()
{
//Arrange
_icecreamStorageContract.Setup(x => x.GetElementById(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
_icecreamStorageContract.Setup(x => x.GetElementByName(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.GetProductByData(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
Assert.That(() => _icecreamBusinessLogicContract.GetProductByData("name"), Throws.TypeOf<StorageException>());
_icecreamStorageContract.Verify(x => x.GetElementById(It.IsAny<string>()), Times.Once);
_icecreamStorageContract.Verify(x => x.GetElementByName(It.IsAny<string>()), Times.Once);
}
[Test]
public void InsertProduct_CorrectRecord_Test()
{
//Arrange
var flag = false;
var record = new IceCreamDataModel(Guid.NewGuid().ToString(), "name", IceCreamType.Popsicle, Guid.NewGuid().ToString(), 10, false);
_icecreamStorageContract.Setup(x => x.AddElement(It.IsAny<IceCreamDataModel>()))
.Callback((IceCreamDataModel x) =>
{
flag = x.Id == record.Id && x.IceCreamName == record.IceCreamName && x.IceCreamType == record.IceCreamType &&
x.ManufacturerId == record.ManufacturerId && x.Price == record.Price && x.IsDeleted == record.IsDeleted;
});
//Act
_icecreamBusinessLogicContract.InsertProduct(record);
//Assert
_icecreamStorageContract.Verify(x => x.AddElement(It.IsAny<IceCreamDataModel>()), Times.Once);
Assert.That(flag);
}
[Test]
public void InsertProduct_RecordWithExistsData_ThrowException_Test()
{
//Arrange
_icecreamStorageContract.Setup(x => x.AddElement(It.IsAny<IceCreamDataModel>())).Throws(new ElementExistsException("Data", "Data"));
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.InsertProduct(new(Guid.NewGuid().ToString(), "name", IceCreamType.Popsicle, Guid.NewGuid().ToString(), 10, false)), Throws.TypeOf<ElementExistsException>());
_icecreamStorageContract.Verify(x => x.AddElement(It.IsAny<IceCreamDataModel>()), Times.Once);
}
[Test]
public void InsertProduct_NullRecord_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.InsertProduct(null), Throws.TypeOf<ArgumentNullException>());
_icecreamStorageContract.Verify(x => x.AddElement(It.IsAny<IceCreamDataModel>()), Times.Never);
}
[Test]
public void InsertProduct_InvalidRecord_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.InsertProduct(new IceCreamDataModel("id", "name", IceCreamType.Sherbet, Guid.NewGuid().ToString(), 10, false)), Throws.TypeOf<ValidationException>());
_icecreamStorageContract.Verify(x => x.AddElement(It.IsAny<IceCreamDataModel>()), Times.Never);
}
[Test]
public void InsertProduct_StorageThrowError_ThrowException_Test()
{
//Arrange
_icecreamStorageContract.Setup(x => x.AddElement(It.IsAny<IceCreamDataModel>())).Throws(new StorageException(new InvalidOperationException()));
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.InsertProduct(new(Guid.NewGuid().ToString(), "name", IceCreamType.Sherbet, Guid.NewGuid().ToString(), 10, false)), Throws.TypeOf<StorageException>());
_icecreamStorageContract.Verify(x => x.AddElement(It.IsAny<IceCreamDataModel>()), Times.Once);
}
[Test]
public void UpdateProduct_CorrectRecord_Test()
{
//Arrange
var flag = false;
var record = new IceCreamDataModel(Guid.NewGuid().ToString(), "name", IceCreamType.Sherbet, Guid.NewGuid().ToString(), 10, false);
_icecreamStorageContract.Setup(x => x.UpdElement(It.IsAny<IceCreamDataModel>()))
.Callback((IceCreamDataModel x) =>
{
flag = x.Id == record.Id && x.IceCreamName == record.IceCreamName && x.IceCreamType == record.IceCreamType &&
x.ManufacturerId == record.ManufacturerId && x.Price == record.Price && x.IsDeleted == record.IsDeleted;
});
//Act
_icecreamBusinessLogicContract.UpdateProduct(record);
//Assert
_icecreamStorageContract.Verify(x => x.UpdElement(It.IsAny<IceCreamDataModel>()), Times.Once);
Assert.That(flag);
}
[Test]
public void UpdateProduct_RecordWithIncorrectData_ThrowException_Test()
{
//Arrange
_icecreamStorageContract.Setup(x => x.UpdElement(It.IsAny<IceCreamDataModel>())).Throws(new ElementNotFoundException(""));
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.UpdateProduct(new(Guid.NewGuid().ToString(), "name", IceCreamType.Sherbet, Guid.NewGuid().ToString(), 10, false)), Throws.TypeOf<ElementNotFoundException>());
_icecreamStorageContract.Verify(x => x.UpdElement(It.IsAny<IceCreamDataModel>()), Times.Once);
}
[Test]
public void UpdateProduct_RecordWithExistsData_ThrowException_Test()
{
//Arrange
_icecreamStorageContract.Setup(x => x.UpdElement(It.IsAny<IceCreamDataModel>())).Throws(new ElementExistsException("Data", "Data"));
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.UpdateProduct(new(Guid.NewGuid().ToString(), "anme", IceCreamType.Popsicle, Guid.NewGuid().ToString(), 10, false)), Throws.TypeOf<ElementExistsException>());
_icecreamStorageContract.Verify(x => x.UpdElement(It.IsAny<IceCreamDataModel>()), Times.Once);
}
[Test]
public void UpdateProduct_NullRecord_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.UpdateProduct(null), Throws.TypeOf<ArgumentNullException>());
_icecreamStorageContract.Verify(x => x.UpdElement(It.IsAny<IceCreamDataModel>()), Times.Never);
}
[Test]
public void UpdateProduct_InvalidRecord_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.UpdateProduct(new IceCreamDataModel("id", "name", IceCreamType.Sherbet, Guid.NewGuid().ToString(), 10, false)), Throws.TypeOf<ValidationException>());
_icecreamStorageContract.Verify(x => x.UpdElement(It.IsAny<IceCreamDataModel>()), Times.Never);
}
[Test]
public void UpdateProduct_StorageThrowError_ThrowException_Test()
{
//Arrange
_icecreamStorageContract.Setup(x => x.UpdElement(It.IsAny<IceCreamDataModel>())).Throws(new StorageException(new InvalidOperationException()));
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.UpdateProduct(new(Guid.NewGuid().ToString(), "name", IceCreamType.Sherbet, Guid.NewGuid().ToString(), 10, false)), Throws.TypeOf<StorageException>());
_icecreamStorageContract.Verify(x => x.UpdElement(It.IsAny<IceCreamDataModel>()), Times.Once);
}
[Test]
public void DeleteProduct_CorrectRecord_Test()
{
//Arrange
var id = Guid.NewGuid().ToString();
var flag = false;
_icecreamStorageContract.Setup(x => x.DelElement(It.Is((string x) => x == id))).Callback(() => { flag = true; });
//Act
_icecreamBusinessLogicContract.DeleteProduct(id);
//Assert
_icecreamStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
Assert.That(flag);
}
[Test]
public void DeleteProduct_RecordWithIncorrectId_ThrowException_Test()
{
//Arrange
var id = Guid.NewGuid().ToString();
_icecreamStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new ElementNotFoundException(id));
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.DeleteProduct(Guid.NewGuid().ToString()), Throws.TypeOf<ElementNotFoundException>());
_icecreamStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
}
[Test]
public void DeleteProduct_IdIsNullOrEmpty_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.DeleteProduct(null), Throws.TypeOf<ArgumentNullException>());
Assert.That(() => _icecreamBusinessLogicContract.DeleteProduct(string.Empty), Throws.TypeOf<ArgumentNullException>());
_icecreamStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
}
[Test]
public void DeleteProduct_IdIsNotGuid_ThrowException_Test()
{
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.DeleteProduct("id"), Throws.TypeOf<ValidationException>());
_icecreamStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Never);
}
[Test]
public void DeleteProduct_StorageThrowError_ThrowException_Test()
{
//Arrange
_icecreamStorageContract.Setup(x => x.DelElement(It.IsAny<string>())).Throws(new StorageException(new InvalidOperationException()));
//Act&Assert
Assert.That(() => _icecreamBusinessLogicContract.DeleteProduct(Guid.NewGuid().ToString()), Throws.TypeOf<StorageException>());
_icecreamStorageContract.Verify(x => x.DelElement(It.IsAny<string>()), Times.Once);
}
}