public void CalculateExpenses_ShouldInvokeReadFile_WhenReadLine()
{
//Arrange
IList <CampingTrip> trips = new List <CampingTrip>();
var fileReader = new Mock <IFileReader>();
fileReader.Setup(x => x.ReadFile(It.IsAny <string>())).Returns(trips);
//Act
var expenseCalculator = new CampingTripExpenseCalculator(fileReader.Object);
expenseCalculator.CalculateExpenses("anystring");
//Assert
fileReader.Verify(m => m.ReadFile(It.IsAny <string>()), Times.Once());
}
static void Main(string[] args)
{
TextFileReader fileReader = new TextFileReader();
CampingTripExpenseCalculator expenseCalculator = new CampingTripExpenseCalculator(fileReader);
Console.WriteLine("Enter Filename");
var lineRead = Console.ReadLine();
if (!string.IsNullOrEmpty(lineRead))
{
expenseCalculator.CalculateExpenses(lineRead);
Console.ReadLine();
}
else
{
Console.WriteLine("Invalid Filename Entered");
}
}