public void Adding_BillItem_To_BIll()
{
var date = new DateTime(2017, 6, 19);
var billItems = ListOfBillItems.Create();
var projectId = Guid.NewGuid().ToString();
var storeHouseItemAId = Guid.NewGuid().ToString();
var storehuseItemAQuantity = 15;
var billItemA = BillItem.Create(5, 2.5M, storeHouseItemAId, storehuseItemAQuantity);
var storeHouseItemBId = Guid.NewGuid().ToString();
var storehuseItemBQuantity = 15;
var billItemB = BillItem.Create(4, 2.5M, storeHouseItemBId, storehuseItemBQuantity);
var bill = Bill.Create(date, billItems, projectId);
Assert.True(bill.GetBillItems().Count() == 0);
bill.AddBillItem(billItemA);
Assert.True(bill.GetBillItems().Count() == 1);
bill.AddBillItem(billItemB);
Assert.True(bill.GetBillItems().Count() == 2);
bill.AddBillItem(billItemA);
Assert.True(bill.GetBillItems().Count() == 2);
}
public ListOfBillItems AddBilledItems(Bill bill)
{
var billedItems = bill.GetBillItems();
billedItems.AddRange(bill.GetBillItems());
return(ListOfBillItems.Create(billedItems));
}
public ListOfBillItems GetBillItems()
{
if (string.IsNullOrEmpty(this.BillItems))
{
return(ListOfBillItems.Create());
}
return((ListOfBillItems)this.BillItems);
}
public static Bill Create(DateTime date, ListOfBillItems billItems, string projectId)
{
return(new Bill()
{
Date = date,
RevisionDate = date,
BillItems = billItems,
Amount = CalculateAmount(billItems),
ProjectId = projectId,
HasInvoice = false
});
}
public void Create_Valid_Bill()
{
var date = new DateTime(2017, 6, 22);
var projectId = Guid.NewGuid().ToString();
var billItems = ListOfBillItems.Create();
var bill = Bill.Create(date, billItems, projectId);
Assert.NotNull(bill);
Assert.NotNull(bill.BillItems);
Assert.True(bill.Date.Equals(date));
Assert.True(bill.ProjectId.Equals(projectId));
Assert.False(bill.HasInvoice);
}
public void Attache_Invoice_to_Bill()
{
var date = new DateTime(2017, 6, 19);
var billItems = ListOfBillItems.Create();
var projectId = Guid.NewGuid().ToString();
var invoiceId = Guid.NewGuid().ToString();
var otherInviceId = Guid.NewGuid().ToString();
var bill = Bill.Create(date, billItems, projectId);
bill.AttachInvoice(invoiceId);
Assert.NotNull(bill.InvoiceId);
Assert.True(bill.HasInvoice);
Assert.Throws <InvalidOperationException>(() => bill.AttachInvoice(otherInviceId));
}
public void Revise(DateTime revisionDate, ListOfBillItems billItems)
{
if (this.HasInvoice)
{
throw new InvalidOperationException("Invoice has been issued and the bill can not be changed.");
}
if (this.Date > revisionDate)
{
throw new ArgumentOutOfRangeException("revisionDate", "Revision date can't be prior then the creation date.");
}
if (this.RevisionDate > revisionDate)
{
throw new ArgumentOutOfRangeException("revisionDate", "Revision date can't be prior then the last revision date.");
}
this.RevisionDate = revisionDate;
this.BillItems = billItems;
this.Amount = CalculateAmount(billItems);
}
public void Revise_Bill()
{
var date = new DateTime(2017, 6, 19);
var revisionDate = new DateTime(2017, 6, 22);
var billItems = ListOfBillItems.Create();
var projectId = Guid.NewGuid().ToString();
var storeHouseItemId = Guid.NewGuid().ToString();
var storehuseItemQuantity = 6;
var billItem = BillItem.Create(5, 2.5M, storeHouseItemId, storehuseItemQuantity);
var revisedBillItem = BillItem.Create(4, 2.5M, storeHouseItemId, storehuseItemQuantity);
var items = new List <BillItem> {
billItem
};
var revisedItems = new List <BillItem> {
revisedBillItem
};
var bill = Bill.Create(date, billItems, projectId);
bill.Revise(revisionDate, ListOfBillItems.Create(revisedItems));
Assert.NotNull(bill);
Assert.NotNull(bill.BillItems);
Assert.True(bill.GetBillItems().Count() == 1);
Assert.True(bill.GetBillItems().First().Quantity == revisedBillItem.Quantity);
Assert.True(bill.RevisionDate.Equals(revisionDate));
var revisonDatePriorTheDate = date.AddDays(-5);
Assert.Throws <ArgumentOutOfRangeException>(() => bill.Revise(revisonDatePriorTheDate, ListOfBillItems.Create(revisedItems)));
var revisonDatePriorTheLastRevisionDate = bill.RevisionDate.AddDays(-1);
Assert.Throws <ArgumentOutOfRangeException>(() => bill.Revise(revisonDatePriorTheLastRevisionDate, ListOfBillItems.Create(revisedItems)));
bill.AttachInvoice(Guid.NewGuid().ToString());
Assert.Throws <InvalidOperationException>(() => bill.Revise(revisionDate, ListOfBillItems.Create(revisedItems)));
}
private static decimal CalculateAmount(ListOfBillItems billItems)
{
return(billItems.Sum(i => i.Price * i.Quantity));
}