private bool IsValidOne(string input)
{
var pwl = new PasswordLine(input);
var count = pwl.Password.Where(c => c == pwl.Letter).Count();
return(count >= pwl.FirstNumber && count <= pwl.SecondNumber);
}
public bool IsValid(PasswordLine line)
{
var requiredCharCount = line.Password.Count(c => c == line.RequiredChar);
// Lower and Upper bound are both inclusive.
return(requiredCharCount >= line.LowerBound && requiredCharCount <= line.UpperBound);
}
public bool IsValid(PasswordLine line)
{
// Bounds are the positions, and are one-based indexes.
var isAt1 = line.Password[line.LowerBound - 1] == line.RequiredChar;
var isAt2 = line.Password[line.UpperBound - 1] == line.RequiredChar;
return(isAt1 ^ isAt2);
}
public void ThrowsForInvalidInputs(string inputLine)
{
Action action = () => PasswordLine.Parse(inputLine);
// ACT & ASSERT
action.Should().Throw <InvalidOperationException>()
.WithMessage("Invalid password line: " + inputLine);
}
public void ParsesValidInputs(
string inputLine,
int expectedLowerBound,
int expectedUpperBound,
char expectedRequiredChar,
string expectedPassword)
{
// ACT
var result = PasswordLine.Parse(inputLine);
// ASSERT
result.Should().BeEquivalentTo(
new PasswordLine(expectedLowerBound, expectedUpperBound, expectedRequiredChar, expectedPassword));
}
private bool IsValidTwo(string input)
{
var pwl = new PasswordLine(input);
return(pwl.Password[pwl.FirstNumber - 1] == pwl.Letter ^ pwl.Password[pwl.SecondNumber - 1] == pwl.Letter);
}
