public void GetDifferencesBetweenBudgetAndReport_ErrorIfExpenseReportIsInvalid()
{
Budget budget = fakeBudget.Budget;
ExpenseReport expenseReport = new ExpenseReport();
BudgetComparer budgetComparer = new BudgetComparer(budget, expenseReport);
var ex = Assert.Throws <NullReferenceException>(() => budgetComparer.GetDifferencesBetweenReportAndBudget());
Assert.That(ex.Message, Is.EqualTo("The ExpenseReport does not contain valid data; therefore, it cannot be compared to the budget."));
}
public void GetDifferencesBetweenBudgetAndReport_ReturnsValidDifferencesBudgetTest()
{
Budget budget = fakeBudget.Budget;
ExpenseReport expenseReport = fakeReport.ExpenseReports[4];
BudgetComparer budgetComparer = new BudgetComparer(budget, expenseReport);
Budget differencesBetweenBudgetAndReport = budgetComparer.GetDifferencesBetweenReportAndBudget();
Assert.That(differencesBetweenBudgetAndReport != null);
}