public void Test8Base92DigitsNeeds53Bits( )
{
// Setup
// Exercise
BaseConverter converter = new BaseConverter( 92 );
// Verify
Assert.That( converter.BytesNeeded( 8 ), Is.EqualTo( 7 ) );
}
public PasswordMaterializer( string symbols )
{
if ( symbols == null )
throw new ArgumentNullException( "symbols" );
_symbols = symbols;
_converter = new BaseConverter( _symbols.Length );
_passwordLength = ComputePasswordLength( _symbols.Length );
}
public void Test12Base64DigitsNeeds72Bits( )
{
// Setup
// Exercise
BaseConverter converter = new BaseConverter( 64 );
// Verify
Assert.That( converter.BytesNeeded( 12 ), Is.EqualTo( 9 ) );
}
public void TestCannotConvertWithNotEnoughBytes( )
{
// Setup
BaseConverter converter = new BaseConverter( 16 );
// Exercise
// Verify
Assert.That( new TestDelegate( ( ) => converter.ConvertBytesToDigits( new byte[ ] { 0x00, 0x00 }, 5 ) ),
Throws.InstanceOf( typeof ( ArgumentException ) ) );
}
public void TestConvertArrayToSymbols64Returns12Characters( )
{
// Setup
const string symbols64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-+";
PasswordMaterializer materializer = new PasswordMaterializer( symbols64 );
BaseConverter converter = new BaseConverter( 64 );
byte[ ] input = { 0xA1, 0x22, 0x44, 0x60, 0xE7, 0x01, 0x1A, 0x48, 0xCB };
byte[ ] convertedBytes = converter.ConvertBytesToDigits( input, 12 );
string expectedOutput = new string( convertedBytes.Select( b => symbols64[ b ] ).ToArray( ) );
// Exercise
string output = materializer.ToString( input );
// Verify
Assert.That( output, Is.EqualTo( expectedOutput ) );
}