public void FindAndExtractDigits_ExtractMultipleNumbersWithSymbols()
{
// arrange
string test = "helloWo32r@#ld1";
int expected = 321;
StringBreakout.FindAndExtractDigits(test);
int actual = StringBreakout.ExtractNumbers;
Assert.AreEqual(expected, actual);
}
public void FindAndExtractDigits_ExtractSingleNumber()
{
// arrange
string test = "helloWorld1";
int expected = 1;
StringBreakout.FindAndExtractDigits(test);
int actual = StringBreakout.ExtractNumbers;
Assert.AreEqual(expected, actual);
}
public void FindAndExtractDigits_WithOnlyNumbers()
{
// arrange
string test = "2013";
int expected = 2013;
StringBreakout.FindAndExtractDigits(test);
int actual = StringBreakout.ExtractNumbers;
Assert.AreEqual(expected, actual);
}
public void FindAndExtractDigits_WhenNoInput()
{
// arrange
string test = "";
int expected = 0;
StringBreakout.FindAndExtractDigits(test);
int actual = StringBreakout.ExtractNumbers;
Assert.AreEqual(expected, actual);
}
public static void Main(string[] args)
{
int extractedNumberFromString;
Console.WriteLine("Function Client\n===============\n");
if (args.Length == 0)
{
Console.WriteLine("Usage: FunctionTest <test string>... ");
return;
}
for (int i = 0; i < args.Length; i++)
{
// analyze the incoming "test string" to determine what types of
// characters are present ...
//
// first - how many digits are found within the string ...
Console.WriteLine("The Digit Count for String [{0}] is [{1}]", args[i], StringBreakout.NumberOfDigits(args[i]));
//
// next - how many alphabetic characters are found within the string ...
Console.WriteLine("The Alpha Count for String [{0}] is [{1}]", args[i], StringBreakout.NumberOfAlphas(args[i]));
//
// lastly - determine the number of non-digit / non-alpha characters
Console.WriteLine("The Other Count for String [{0}] is [{1}]", args[i], StringBreakout.NumberOfOthers(args[i]));
// next function to call is to extract the number(s) from the string and use it to determine
// its factorial !
//
// *************************************************************************************************
// the code below assumes that the argv[i] string *only* contains digits. I want you to write
// another class method in the StringBreakout class to detect and extract the numbers hidden in
// the incoming string and use that number in the factorial calculation
// for example, if the incoming string is Char1i3 <<< yes there is a "1" and "3" in that string
// then the method you write would find the "1" and the "3" and return the value
// 13
// this new method should look like :
// int FindAndExtractDigits(string theString)
// *************************************************************************************************
try
{
extractedNumberFromString = StringBreakout.FindAndExtractDigits((string)null);
Console.WriteLine(" >>> {0}! = {1}", extractedNumberFromString, Factorial.Calc(extractedNumberFromString));
}
catch (Exception e)
{
Console.WriteLine("Error: {0}", e.Message);
}
}
}
public void FedOverFlow()
{
StringBreakout.FindAndExtractDigits("2147483648");
}
public void FedEachDigit()
{
Assert.AreEqual(StringBreakout.FindAndExtractDigits(digits), 123456789);
}
public void FedBlankString()
{
StringBreakout.FindAndExtractDigits("");
}
public void FedNullString()
{
StringBreakout.FindAndExtractDigits((string)null);
}
public void FedExtractionTest()
{
Assert.AreEqual(StringBreakout.FindAndExtractDigits("-as12?>.34LKd56!@#$78EIDKA9"), 123456789);
}
public void FedLeadingZeros()
{
Assert.AreEqual(StringBreakout.FindAndExtractDigits("00000000000000000000000" + digits), 123456789);
}
public void FedLowerBound()
{
Assert.AreEqual(StringBreakout.FindAndExtractDigits("0"), 0);
}
public void FedUpperBound()
{
Assert.AreEqual(StringBreakout.FindAndExtractDigits(int.MaxValue.ToString()), int.MaxValue);
}
