private static double SequenceGuesses(Match match)
{
char firstChar = match.Token[0];
double baseGuesses = 0;
if ((new HashSet <char> {
'a', 'A', 'z', 'Z', '0', '1', '9'
}).Contains(firstChar))
{
baseGuesses = 4;
}
else
{
if (Char.IsDigit(firstChar))
{
baseGuesses = 10;
}
else
{
baseGuesses = 26;
}
}
SequenceMatch sm = (SequenceMatch)match;
if (!sm.Ascending)
{
baseGuesses *= 2;
}
return(baseGuesses * match.Token.Length);
}
/// <summary>
/// Estimates the attempts required to guess the password.
/// </summary>
/// <param name="match">The match.</param>
/// <returns>The guesses estimate.</returns>
public static double CalculateGuesses(SequenceMatch match)
{
double baseGuesses;
if (ObviousStartCharacters.Contains(match.Token[0]))
{
baseGuesses = 4;
}
else
{
if (char.IsDigit(match.Token[0]))
{
baseGuesses = 10;
}
else
{
baseGuesses = 26;
}
}
if (!match.Ascending)
{
baseGuesses *= 2;
}
return(baseGuesses * match.Token.Length);
}
public void IsDelegatedToByEstimateGuesses()
{
var match = new SequenceMatch
{
Token = "ab",
Ascending = true,
i = 1,
j = 2,
SequenceName = "abc",
SequenceSpace = 1,
};
var actual = SequenceGuessesCalculator.CalculateGuesses(match);
actual.Should().Be(8);
}
public void CalculatesTheCorrectNumberOfGuesses(string token, bool ascending, int expected)
{
var match = new SequenceMatch
{
Token = token,
Ascending = ascending,
i = 1,
j = 2,
SequenceName = "abc",
SequenceSpace = 1,
};
var actual = SequenceGuessesCalculator.CalculateGuesses(match);
actual.Should().Be(expected);
}