static void Main(string[] args)
{
string baseString;
IntMaker intMaker = new IntMaker();
do
{
Console.Write("Enter a number (or enter \"exit\" to finish the program): ");
baseString = Console.ReadLine();
if (baseString == "exit")
{
break;
}
try
{
Console.WriteLine($"Your number is: {intMaker.ConvertToInt(baseString)}");
}
catch (EmptyStringException ex)
{
Console.WriteLine($"Error: {ex.Message}");
}
catch (IncorrectFormatException ex)
{
Console.WriteLine($"Error: {ex.Message}");
}
catch (OverflowException)
{
Console.WriteLine($"Error: Your number is too big, it must be between -2 147 483 648 and 2 147 483 647");
}
} while (true);
}
public void ConvertToInt_LessThanMinimumIn_OverflowExceptionOut()
{
//Arrange
string sample = "-2147483650";
//Act
IntMaker intMaker = new IntMaker();
//Assert
Assert.ThrowsException <System.OverflowException>(() => intMaker.ConvertToInt(sample));
}
public void ConvertToInt_EmptyStringIn_EmptyStringExceptionOut()
{
//Arrange
string sample = string.Empty;
//Act
IntMaker intMaker = new IntMaker();
//Assert
Assert.ThrowsException <EmptyStringException>(() => intMaker.ConvertToInt(sample));
}
public void ConvertToInt_NotNumberIn_IncorrectFormatExceptionOut()
{
//Arrange
string sample = "abcde";
//Act
IntMaker intMaker = new IntMaker();
//Assert
Assert.ThrowsException <IncorrectFormatException>(() => intMaker.ConvertToInt(sample));
}
public void ConvertToInt_12345AsString_12345AsNumber()
{
//Arrange
string sample = "12345";
int expected = 12345;
//Act
IntMaker intMaker = new IntMaker();
int actual = intMaker.ConvertToInt(sample);
//Assert
Assert.AreEqual(expected, actual);
}
public void ConvertToInt_MaximumIn_MaximumOut()
{
//Arrange
string sample = "2147483647";
int expected = 2147483647;
//Act
IntMaker intMaker = new IntMaker();
int actual = intMaker.ConvertToInt(sample);
//Assert
Assert.AreEqual(expected, actual);
}
public void ConvertToInt_NegativeIn_NegativeOut()
{
//Arrange
string sample = "-15";
int expected = -15;
//Act
IntMaker intMaker = new IntMaker();
int actual = intMaker.ConvertToInt(sample);
//Assert
Assert.AreEqual(expected, actual);
}
public void ConvertToInt_ZeroIn_ZeroOut()
{
//Arrange
string sample = "0";
int expected = 0;
//Act
IntMaker intMaker = new IntMaker();
int actual = intMaker.ConvertToInt(sample);
//Assert
Assert.AreEqual(expected, actual);
}