private bool IsPasswordSatisfiesDescriptor(string password, PasswordDescriptor descriptor)
{
if (password.Length != descriptor.PasswordLength)
{
return(false);
}
var tempPassword = password.ToCharArray();
if (descriptor.LowerCase)
{
var tempPasswordLengthBefore = tempPassword.Length;
tempPassword = tempPassword.Except(descriptor.Alphabet.LowerCase).ToArray();
if (tempPassword.Length == tempPasswordLengthBefore)
{
return(false);
}
}
if (descriptor.UpperCase)
{
var tempPasswordLengthBefore = tempPassword.Length;
tempPassword = tempPassword.Except(descriptor.Alphabet.UpperCase).ToArray();
if (tempPassword.Length == tempPasswordLengthBefore)
{
return(false);
}
}
if (descriptor.Digits)
{
var tempPasswordLengthBefore = tempPassword.Length;
tempPassword = tempPassword.Except(descriptor.Alphabet.Digits).ToArray();
if (tempPassword.Length == tempPasswordLengthBefore)
{
return(false);
}
}
if (descriptor.SpecialSymbols)
{
var tempPasswordLengthBefore = tempPassword.Length;
tempPassword = tempPassword.Except(descriptor.Alphabet.SpecialSymbols).ToArray();
if (tempPassword.Length == tempPasswordLengthBefore)
{
return(false);
}
}
if (tempPassword.Length != 0)
{
return(false);
}
return(true);
}
public void PasswordDescriptor_ForPasswordLengthBelow4_SetPasswordLength4()
{
//arrange
var generator = GetGenerator();
var shortPasswordDescriptor = new PasswordDescriptor()
{
PasswordLength = -10,
};
//act
generator.PasswordDescriptor = shortPasswordDescriptor;
//assert
Assert.AreEqual(generator.PasswordDescriptor.PasswordLength, 4);
}
public void Constructor_WithoutPasswordDescriptorParam_CreatePasswordDescriptorByDefault()
{
//arrange
PasswordGenerator generator = new PasswordGenerator("key", new CompositePCLCryptographer());
var defaultDescriptor = new PasswordDescriptor
{
LowerCase = true,
UpperCase = true,
Digits = true,
SpecialSymbols = true,
PasswordLength = 18
};
//assert
Assert.True(PasswordDescriptorEquals(defaultDescriptor, generator.PasswordDescriptor));
}
public void PasswordDescriptor_ForPasswordLengthAbove40_SetPasswordLength40()
{
//arrange
var generator = GetGenerator();
var longPasswordDescriptor = new PasswordDescriptor()
{
PasswordLength = 41,
};
//act
generator.PasswordDescriptor = longPasswordDescriptor;
//assert
Assert.AreEqual(generator.PasswordDescriptor.PasswordLength, 40);
}
public void PasswordDescriptor_ForNullValue_ReturnDefault()
{
//arrange
var generator = GetGenerator();
var defaultDescriptor = new PasswordDescriptor
{
LowerCase = true,
UpperCase = true,
Digits = true,
SpecialSymbols = true,
PasswordLength = 18
};
//act
generator.PasswordDescriptor = null;
//assert
Assert.That(PasswordDescriptorEquals(defaultDescriptor, generator.PasswordDescriptor));
}
private bool PasswordDescriptorEquals(PasswordDescriptor lh, PasswordDescriptor rh)
{
if (lh.PasswordLength != rh.PasswordLength)
{
return(false);
}
if (lh.LowerCase != rh.LowerCase)
{
return(false);
}
if (lh.UpperCase != rh.UpperCase)
{
return(false);
}
if (lh.Digits != rh.Digits)
{
return(false);
}
if (lh.SpecialSymbols != rh.SpecialSymbols)
{
return(false);
}
if (!lh.Alphabet.LowerCase.SequenceEqual(rh.Alphabet.LowerCase))
{
return(false);
}
if (!lh.Alphabet.UpperCase.SequenceEqual(rh.Alphabet.UpperCase))
{
return(false);
}
if (!lh.Alphabet.Digits.SequenceEqual(rh.Alphabet.Digits))
{
return(false);
}
if (!lh.Alphabet.SpecialSymbols.SequenceEqual(rh.Alphabet.SpecialSymbols))
{
return(false);
}
return(true);
}
public void Generate_WithDescriptor_ReturnPasswordMatchesDescriptor(string input, bool lowerCase, bool upperCase,
bool digits, bool specialSymbols, int passwordLength)
{
//arrange
var descriptor = new PasswordDescriptor
{
LowerCase = lowerCase,
UpperCase = upperCase,
Digits = digits,
SpecialSymbols = specialSymbols,
PasswordLength = passwordLength
};
var generator = GetGenerator();
//act
var password = generator.Generate(input, descriptor);
//assert
Assert.IsTrue(IsPasswordSatisfiesDescriptor(password, descriptor));
}
private PasswordDescriptor GetRandomDescriptor()
{
var res = new PasswordDescriptor();
res.PasswordLength = rnd.Next(4, 32);
res.LowerCase = rnd.Next(0, 2) == 0 ? true : false;
res.UpperCase = rnd.Next(0, 2) == 0 ? true : false;
res.Digits = rnd.Next(0, 2) == 0 ? true : false;
res.SpecialSymbols = rnd.Next(0, 2) == 0 ? true : false;
if (!(res.LowerCase && res.UpperCase && res.Digits && res.SpecialSymbols))
{
var select = rnd.Next(0, 4);
switch (select)
{
case 0:
res.LowerCase = true;
break;
case 1:
res.UpperCase = true;
break;
case 2:
res.Digits = true;
break;
case 3:
res.SpecialSymbols = true;
break;
}
}
return(res);
}
