public async Task ValidateStockItem_GivenAStockItemWithNegativeQuantity_ShouldReturAValidationResultWithExpectedMessage()
{
//Arrange
var guid = Guid.NewGuid();
var stockItem = new StockItem
{
WholesalerId = guid,
UnitPrice = 1.0f,
Quantity = -1
};
var expectedMessage = "The quantity of a stock item cannot be negative";
var mockedWholesalerQuery = new Mock <IWholesalerQuery>();
mockedWholesalerQuery.Setup(query => query.GetWholesaler(It.IsAny <Guid>()))
.ReturnsAsync(new Wholesaler());
var wholesalerValidation = new WholesalerValidation(mockedWholesalerQuery.Object);
//Act
var results = await wholesalerValidation.ValidateStockItem(stockItem);
//Assert
Assert.Contains(results, result => result != null && result.ErrorMessage.Equals(expectedMessage));
}
public async Task ValidateStockItem_GivenAValidStockItem_ShouldReturnAllSuccessValidationResults()
{
//Arrange
var guid = Guid.NewGuid();
var stockItem = new StockItem
{
WholesalerId = guid,
UnitPrice = 1.0f,
Quantity = 10
};
var mockedWholesalerQuery = new Mock <IWholesalerQuery>();
mockedWholesalerQuery.Setup(query => query.GetWholesaler(It.IsAny <Guid>()))
.ReturnsAsync(new Wholesaler());
var wholesalerValidation = new WholesalerValidation(mockedWholesalerQuery.Object);
//Act
var results = await wholesalerValidation.ValidateStockItem(stockItem);
//Assert
Assert.True(results.All(result => result == ValidationResult.Success));
}
public async Task ValidateStockItem_GivenAStockItemWithAnEmptyWholesalerId_ShouldReturAValidationResultWithExpectedMessage()
{
//Arrange
var guid = Guid.NewGuid();
var stockItem = new StockItem
{
WholesalerId = Guid.Empty,
UnitPrice = 1.0f,
Quantity = 10
};
var expectedMessage = "The wholesaler cannot be null or empty";
var wholesalerValidation = new WholesalerValidation(null);
//Act
var results = await wholesalerValidation.ValidateStockItem(stockItem);
//Assert
Assert.Contains(results, result => result != null && result.ErrorMessage.Equals(expectedMessage));
}
