public SkuStock_taken_tests()// Given_sku_created_and_taken_messages_When_projected()
{
var stockId = Guid.NewGuid();
_stockCreatedEvent = new SkuStockCreated(stockId, Guid.NewGuid(), 5, TimeSpan.FromDays(2));
_stockTakenEvent = new StockTaken(stockId, 3);
ProjectionBuilder.Handle(_stockCreatedEvent).Wait();
ProjectionBuilder.Handle(_stockTakenEvent).Wait();
}
public async Task Given_sku_created_and_taken_messages_When_projected_Then_another_history_is_added()
{
var stockId = Guid.NewGuid();
var stockCreatedEvent = new SkuStockCreated(stockId, Guid.NewGuid(), 7, TimeSpan.FromDays(2));
var stockTaken = new StockTaken(stockId, 3);
await ProjectionBuilder.Handle(stockCreatedEvent);
await ProjectionBuilder.Handle(stockTaken);
await ProjectionBuilder.Handle(stockTaken);
using (var context = CreateContext())
{
Assert.Equal(3, context.StockHistory.Count());
Assert.Equal(1, context.SkuStocks.Find(stockId).AvailableQuantity);
}
}
public async Task Handle(StockTaken msg, IMessageMetadata metadata = null)
{
using (var context = _contextFactory())
{
var skuStock = await context.SkuStocks.FindAsync(msg.SourceId);
if (skuStock == null)
{
throw new SkuStockEntryNotFoundException(msg.SourceId);
}
var history = CreateHistory(skuStock, StockOperation.Taken, msg.Quantity);
skuStock.AvailableQuantity -= msg.Quantity;
skuStock.TotalQuantity -= msg.Quantity;
skuStock.LastModified = msg.CreatedTime;
FillNewQuantities(history, skuStock);
context.StockHistory.Add(history);
await context.SaveChangesAsync();
}
}
