private static Allocation allocateRemainderIfNeeded(this Money money, IRemainderAllocator allocator, Allocation allocatedSoFar)
{
Money remainder = money - allocatedSoFar.TotalAllocated;
Allocation beingAllocated = allocatedSoFar;
if (remainder >= remainder.MinValue)
{
beingAllocated = allocator.Allocate(allocatedSoFar);
}
return(beingAllocated);
}
public static Allocation Allocate(this Money money, int numberOfRecipients, IRemainderAllocator allocator)
{
EvenAllocator.AssertNumberOfRecipients(nameof(numberOfRecipients), numberOfRecipients);
if (money.notEnoughToAllocate())
{
return(Allocation.Zero(money, numberOfRecipients));
}
Allocation allocated = new EvenAllocator(money)
.Allocate(numberOfRecipients);
allocated = money.allocateRemainderIfNeeded(allocator, allocated);
return(allocated);
}
public static Allocation Allocate(this Money money, RatioCollection ratios, IRemainderAllocator allocator)
{
Guard.AgainstNullArgument(nameof(ratios), ratios);
if (money.notEnoughToAllocate())
{
return(Allocation.Zero(money, ratios.Count));
}
Allocation allocated = new ProRataAllocator(money)
.Allocate(ratios);
allocated = money.allocateRemainderIfNeeded(allocator, allocated);
return(allocated);
}
public Allocation Allocate(int numberOfRecipients, IRemainderAllocator allocator)
{
EvenAllocator.AssertNumberOfRecipients(nameof(numberOfRecipients), numberOfRecipients);
if (notEnoughToAllocate())
{
return(Allocation.Zero(this, numberOfRecipients));
}
Allocation allocated = new EvenAllocator(this)
.Allocate(numberOfRecipients);
allocated = allocateRemainderIfNeeded(allocator, allocated);
return(allocated);
}
public void Allocate_SingleAllocation_SameQuantity(IRemainderAllocator remainder)
{
Allocation allocated = 8.3m.Eur().Allocate(1, remainder);
Assert.That(allocated, Is.EqualTo(new[] { 8.3m.Eur() }));
}
public void Allocate_FairAllocation_EveryoneGetTheSameQuantity(IRemainderAllocator allocator)
{
Allocation allocated = 8m.Usd().Allocate(4, allocator);
Assert.That(allocated, Is.EqualTo(new[] { 2m.Usd(), 2m.Usd(), 2m.Usd(), 2m.Usd() }));
}
