public void AddIncome_InputIsNegativeValue_NoChangesToBalanceAmount()
{
BudgetModel model = new BudgetModel();
decimal expected = model.ShowBalanceAmount();
decimal value = -10;
model.AddIncome(value);
decimal actual = model.ShowBalanceAmount();
Assert.That(actual, Is.EqualTo(expected));
}
public void AddIncome_InputIsStandardValue_IncreaseBalanceAmountByValue()
{
BudgetModel model = new BudgetModel();
decimal value = 10;
decimal expected = model.ShowBalanceAmount() + value;
model.AddIncome(value);
decimal actual = model.ShowBalanceAmount();
Assert.That(actual, Is.EqualTo(expected));
}
public void AddSpending_SpendingAmountIsNegativeNumber_NoChangesToBalance()
{
BudgetModel model = new BudgetModel();
model.AddIncome(100);
decimal expected = model.ShowBalanceAmount();
model.AddCategory("food");
bool result = model.AddSpending("food", -50);
decimal actual = model.ShowBalanceAmount();
Assert.That(actual, Is.EqualTo(expected));
}
public void AddSpending_StandardInput_DecBalanceByAmount()
{
BudgetModel model = new BudgetModel();
model.AddIncome(100);
decimal expected = model.ShowBalanceAmount() - 50;
model.AddCategory("food");
bool result = model.AddSpending("food", 50);
decimal actual = model.ShowBalanceAmount();
Assert.That(actual, Is.EqualTo(expected));
}
