public void TestIsInteger1()
{
bool isInteger = ReverseNumberDigits.IsInteger("2793562347856293476");
bool expectedAnswer = true;
Assert.AreEqual(expectedAnswer, isInteger);
}
public void TestReverseIntegerAsInteger3()
{
int reversedInteger = ReverseNumberDigits.ReverseInteger(-87958);
int expectedInteger = -85978;
Assert.AreEqual(expectedInteger, reversedInteger);
}
public void TestReverseIntegerAsInteger1()
{
int reversedInteger = ReverseNumberDigits.ReverseInteger(92387352);
int expectedInteger = 25378329;
Assert.AreEqual(expectedInteger, reversedInteger);
}
public void TestReverseIntegerAsInteger2()
{
int reversedInteger = ReverseNumberDigits.ReverseInteger(0);
int expectedInteger = 0;
Assert.AreEqual(expectedInteger, reversedInteger);
}
public void TestReverseInteger2()
{
string reversedInteger = ReverseNumberDigits.ReverseInteger("-975312468");
string expectedString = "-864213579";
Assert.AreEqual(expectedString, reversedInteger);
}
public void TestReverseInteger3()
{
string reversedInteger = ReverseNumberDigits.ReverseInteger("4456897234263475");
string expectedString = "5743624327986544";
Assert.AreEqual(expectedString, reversedInteger);
}
public void TestReverseInteger1()
{
string reversedInteger = ReverseNumberDigits.ReverseInteger("+123456789");
string expectedString = "+987654321";
Assert.AreEqual(expectedString, reversedInteger);
}
public void TestIsInteger4()
{
bool isInteger = ReverseNumberDigits.IsInteger("+277abc629");
bool expectedAnswer = false;
Assert.AreEqual(expectedAnswer, isInteger);
}
public void TestIsInteger3()
{
bool isInteger = ReverseNumberDigits.IsInteger("+27785629");
bool expectedAnswer = true;
Assert.AreEqual(expectedAnswer, isInteger);
}
public void TestIsInteger2()
{
bool isInteger = ReverseNumberDigits.IsInteger("-27935623478562234234234545345365469199889");
bool expectedAnswer = true;
Assert.AreEqual(expectedAnswer, isInteger);
}
private static void HandleReverseNumber()
{
string input;
int number;
do
{
Console.Write("Enter a non-negative integer: ");
input = Console.ReadLine();
}while (!Int32.TryParse(input, NumberStyles.Number, CultureInfo.InvariantCulture, out number) || number < 0);
try
{
int numberReversed = ReverseNumberDigits.ReverseInteger(number);
Console.WriteLine("Your integer with its digits reversed: {0}.", numberReversed);
}
catch (OverflowException ex)
{
Console.WriteLine(ex.Message);
}
}
public void TestReverseIntegerAsInteger5()
{
int reversedInteger = ReverseNumberDigits.ReverseInteger(-1234567899);
Assert.Fail();
}
