public async Task Balance_ShouldCancelEachOtherAsync()
{
// Arrange
var options = BuildContextOptions();
Participant from;
Participant to;
Currency currency;
using (var context = new BorrowBuddyContext(options)) {
currency = context.AddCurrency();
from = context.AddParticipant();
to = context.AddParticipant();
context.AddFlow(from, to, currency, 50);
}
using (var context = new BorrowBuddyContext(options)) {
var service = new BalanceService(context);
// Act
var positive = await service.BalanceAsync(from.Id, to.Id, currency.Code);
var negative = await service.BalanceAsync(to.Id, from.Id, currency.Code);
// Assert
Assert.Equal(50, positive);
Assert.Equal(-50, negative);
}
}
public async Task <ActionResult <long> > BalanceAsync(Guid from, Guid to, string code)
{
return(await _balanceService.BalanceAsync(from, to, code));
}