public IActionResult ApplyInterest(int accountId, double rate, DateTime lastTimeApplied)
{
if (ModelState.IsValid)
{
int result = accountHandler.ApplyInterest(accountId, rate, lastTimeApplied);
if (result == 1)
{
TempData["success"] = "Operation executed successfully.";
return(View());
}
}
TempData["error"] = "Operation was unsuccessful. Please check that rate and account Id are correct.";
return(View());
}
public void InterestIsCorrectlyApplied_WhenUserActivatesInterest()
{
int accountId = 78;
options = new DbContextOptionsBuilder <BankAppDataContext>()
.UseInMemoryDatabase(databaseName: "TestingDb")
.Options;
using (var context = new BankAppDataContext(options))
{
accountQueriesHandler = new AccountQueriesHandler(context);
accountCommandHandler = new AccountCommandHandler(context, systemClock);
context.Accounts.Add(new Account {
AccountId = accountId, Balance = 2000
});
context.SaveChanges();
}
using (var context = new BankAppDataContext(options))
{
var systemClock = Substitute.For <ISystemClock>();
systemClock.GetCurrentTime().Returns(new DateTime(2020, 4, 4, 14, 0, 0, DateTimeKind.Utc));
accountQueriesHandler = new AccountQueriesHandler(context);
accountCommandHandler = new AccountCommandHandler(context, systemClock);
decimal balanceBefore = accountQueriesHandler.GetAccount(accountId).Balance;
double rate = 2;
DateTime latestInterestDate = new DateTime(2018, 02, 02);
var currentDate = new DateTime(2020, 4, 4, 14, 0, 0, DateTimeKind.Utc);
accountCommandHandler.ApplyInterest(accountId, rate, latestInterestDate);
decimal balanceAfter = accountQueriesHandler.GetAccount(accountId).Balance;
double days = (currentDate - latestInterestDate).TotalDays;
Assert.AreEqual(balanceAfter, Decimal.Round(balanceBefore + (decimal)((double)balanceBefore * rate / 100 / 365 * days), 2));
}
}
public void TransactionIsCreated_WhenUserAppliesInterest()
{
int accountId = 77;
options = new DbContextOptionsBuilder <BankAppDataContext>()
.UseInMemoryDatabase(databaseName: "TestingDb")
.Options;
using (var context = new BankAppDataContext(options))
{
accountQueriesHandler = new AccountQueriesHandler(context);
accountCommandHandler = new AccountCommandHandler(context, systemClock);
context.Accounts.Add(new Account {
AccountId = accountId, Balance = 2000
});
context.SaveChanges();
}
using (var context = new BankAppDataContext(options))
{
var systemClock = Substitute.For <ISystemClock>();
systemClock.GetCurrentTime().Returns(new DateTime(2020, 4, 4, 14, 0, 0, DateTimeKind.Utc));
accountQueriesHandler = new AccountQueriesHandler(context);
accountCommandHandler = new AccountCommandHandler(context, systemClock);
int allTransactionsBefore = context.Transactions.CountAsync().Result;
double rate = 0.02;
DateTime latestInterestDate = new DateTime(2018, 02, 02);
var currentDate = DateTime.Now;
accountCommandHandler.ApplyInterest(accountId, rate, latestInterestDate);
int allTransactionsAfter = context.Transactions.CountAsync().Result;
Assert.AreEqual(allTransactionsAfter, allTransactionsBefore + 1);
}
}