public void DenominationBalanceTest()
{
//Arrange
var options = new DbContextOptionsBuilder <AtmContext>()
.UseInMemoryDatabase($"CourseDatabaseForTesting{Guid.NewGuid()}")
.Options;
using (var context = new AtmContext(options))
{
var inventories = new Inventory[]
{
new Inventory {
Denomination = 100, BillQuantity = 10
},
new Inventory {
Denomination = 50, BillQuantity = 10
},
new Inventory {
Denomination = 20, BillQuantity = 10
},
new Inventory {
Denomination = 10, BillQuantity = 10
},
new Inventory {
Denomination = 5, BillQuantity = 10
},
new Inventory {
Denomination = 1, BillQuantity = 10
}
};
foreach (Inventory i in inventories)
{
context.Inventories.Add(i);
}
context.SaveChanges();
}
using (var context = new AtmContext(options))
{
var repo = new Models.AtmRepository(context);
//Act
var obj = repo.DenominationBalance(100);
//Assert
Assert.Equal(10, obj.BillQuantity);
}
}
public void WithdrawTest_Success_Many()
{
//Arrange
var options = new DbContextOptionsBuilder <AtmContext>()
.UseInMemoryDatabase($"CourseDatabaseForTesting{Guid.NewGuid()}")
.Options;
using (var context = new AtmContext(options))
{
var inventories = new Inventory[]
{
new Inventory {
Denomination = 100, BillQuantity = 10
},
new Inventory {
Denomination = 50, BillQuantity = 10
},
new Inventory {
Denomination = 20, BillQuantity = 10
},
new Inventory {
Denomination = 10, BillQuantity = 10
},
new Inventory {
Denomination = 5, BillQuantity = 10
},
new Inventory {
Denomination = 1, BillQuantity = 10
}
};
foreach (Inventory i in inventories)
{
context.Inventories.Add(i);
}
context.SaveChanges();
}
using (var context = new AtmContext(options))
{
var repo = new Models.AtmRepository(context);
//Withdraw $208
repo.Withdraw(208);
foreach (var item in repo.Balance)
{
switch (item.Denomination)
{
case 100: Assert.Equal(8, item.BillQuantity);
break;
case 50:
Assert.Equal(10, item.BillQuantity);
break;
case 20:
Assert.Equal(10, item.BillQuantity);
break;
case 10:
Assert.Equal(10, item.BillQuantity);
break;
case 5:
Assert.Equal(9, item.BillQuantity);
break;
case 1:
Assert.Equal(7, item.BillQuantity);
break;
}
}
//Withdraw $1,398
repo.Withdraw(1398);
foreach (var item in repo.Balance)
{
switch (item.Denomination)
{
case 100:
Assert.Equal(0, item.BillQuantity);
break;
case 50:
Assert.Equal(0, item.BillQuantity);
break;
case 20:
Assert.Equal(6, item.BillQuantity);
break;
case 10:
Assert.Equal(9, item.BillQuantity);
break;
case 5:
Assert.Equal(8, item.BillQuantity);
break;
case 1:
Assert.Equal(4, item.BillQuantity);
break;
}
}
//Withdraw $1,398
repo.Restock();
repo.Withdraw(1398);
foreach (var item in repo.Balance)
{
switch (item.Denomination)
{
case 100:
Assert.Equal(0, item.BillQuantity);
break;
case 50:
Assert.Equal(3, item.BillQuantity);
break;
case 20:
Assert.Equal(8, item.BillQuantity);
break;
case 10:
Assert.Equal(10, item.BillQuantity);
break;
case 5:
Assert.Equal(9, item.BillQuantity);
break;
case 1:
Assert.Equal(7, item.BillQuantity);
break;
}
}
//Withdraw $189
repo.Restock();
repo.Withdraw(189);
foreach (var item in repo.Balance)
{
switch (item.Denomination)
{
case 100:
Assert.Equal(9, item.BillQuantity);
break;
case 50:
Assert.Equal(9, item.BillQuantity);
break;
case 20:
Assert.Equal(9, item.BillQuantity);
break;
case 10:
Assert.Equal(9, item.BillQuantity);
break;
case 5:
Assert.Equal(9, item.BillQuantity);
break;
case 1:
Assert.Equal(6, item.BillQuantity);
break;
}
}
}
}
public void SimpleTest()
{
//Arrange
var options = new DbContextOptionsBuilder <AtmContext>()
.UseInMemoryDatabase($"CourseDatabaseForTesting{Guid.NewGuid()}")
.Options;
using (var context = new AtmContext(options))
{
var inventories = new Inventory[]
{
new Inventory {
Denomination = 100, BillQuantity = 10
},
new Inventory {
Denomination = 50, BillQuantity = 10
},
new Inventory {
Denomination = 20, BillQuantity = 10
},
new Inventory {
Denomination = 10, BillQuantity = 10
},
new Inventory {
Denomination = 5, BillQuantity = 10
},
new Inventory {
Denomination = 1, BillQuantity = 10
}
};
foreach (Inventory i in inventories)
{
context.Inventories.Add(i);
}
context.SaveChanges();
}
using (var context = new AtmContext(options))
{
var repo = new Models.AtmRepository(context);
//Withdraw $208
repo.Withdraw(208);
foreach (var item in repo.Balance)
{
switch (item.Denomination)
{
case 100:
Assert.Equal(8, item.BillQuantity);
break;
case 50:
Assert.Equal(10, item.BillQuantity);
break;
case 20:
Assert.Equal(10, item.BillQuantity);
break;
case 10:
Assert.Equal(10, item.BillQuantity);
break;
case 5:
Assert.Equal(9, item.BillQuantity);
break;
case 1:
Assert.Equal(7, item.BillQuantity);
break;
}
}
//Withdraw $9
repo.Withdraw(9);
foreach (var item in repo.Balance)
{
switch (item.Denomination)
{
case 100:
Assert.Equal(8, item.BillQuantity);
break;
case 50:
Assert.Equal(10, item.BillQuantity);
break;
case 20:
Assert.Equal(10, item.BillQuantity);
break;
case 10:
Assert.Equal(10, item.BillQuantity);
break;
case 5:
Assert.Equal(8, item.BillQuantity);
break;
case 1:
Assert.Equal(3, item.BillQuantity);
break;
}
}
//Withdraw $9
ArgumentException exception = Assert.Throws <ArgumentException>(() => repo.Withdraw(9));
Assert.Equal("Failure: insufficient funds", exception.Message);
//Get Denomination for $20
var obj = repo.DenominationBalance(20);
Assert.Equal(10, obj.BillQuantity);
//Get Denomination for $1
obj = repo.DenominationBalance(1);
Assert.Equal(3, obj.BillQuantity);
//Get Denomination for $100
obj = repo.DenominationBalance(100);
Assert.Equal(8, obj.BillQuantity);
//Restock
repo.Restock();
foreach (var item in repo.Balance)
{
switch (item.Denomination)
{
case 100:
Assert.Equal(10, item.BillQuantity);
break;
case 50:
Assert.Equal(10, item.BillQuantity);
break;
case 20:
Assert.Equal(10, item.BillQuantity);
break;
case 10:
Assert.Equal(10, item.BillQuantity);
break;
case 5:
Assert.Equal(10, item.BillQuantity);
break;
case 1:
Assert.Equal(10, item.BillQuantity);
break;
}
}
}
}
public void WithdrawTest_Failure_Single()
{
//Arrange
var options = new DbContextOptionsBuilder <AtmContext>()
.UseInMemoryDatabase($"CourseDatabaseForTesting{Guid.NewGuid()}")
.Options;
using (var context = new AtmContext(options))
{
var inventories = new Inventory[]
{
new Inventory {
Denomination = 100, BillQuantity = 10
},
new Inventory {
Denomination = 50, BillQuantity = 10
},
new Inventory {
Denomination = 20, BillQuantity = 10
},
new Inventory {
Denomination = 10, BillQuantity = 10
},
new Inventory {
Denomination = 5, BillQuantity = 10
},
new Inventory {
Denomination = 1, BillQuantity = 10
}
};
foreach (Inventory i in inventories)
{
context.Inventories.Add(i);
}
context.SaveChanges();
}
using (var context = new AtmContext(options))
{
var repo = new Models.AtmRepository(context);
//Withdraw $2,000,000
ArgumentException exception = Assert.Throws <ArgumentException>(() => repo.Withdraw(2000000));
Assert.Equal("Failure: insufficient funds", exception.Message);
//Withdraw $208
//This tests that when a failure occurs the changes
// are rolled back to their original amounts.
repo.Withdraw(208);
foreach (var item in repo.Balance)
{
switch (item.Denomination)
{
case 100:
Assert.Equal(8, item.BillQuantity);
break;
case 50:
Assert.Equal(10, item.BillQuantity);
break;
case 20:
Assert.Equal(10, item.BillQuantity);
break;
case 10:
Assert.Equal(10, item.BillQuantity);
break;
case 5:
Assert.Equal(9, item.BillQuantity);
break;
case 1:
Assert.Equal(7, item.BillQuantity);
break;
}
}
}
}