public void SeparateIntegerAndFractionalPortionsOfUserNumberTest()
{
//Arrange
DecimalConvertToBinary decimalConvertToBinary = new DecimalConvertToBinary();
decimalConvertToBinary.UserNumber = 3.1415M;
//Act
decimalConvertToBinary.IntegerPortionOfUserNumber = (int)decimalConvertToBinary.UserNumber;
decimalConvertToBinary.FractionalPortionOfUserNumber = decimalConvertToBinary.UserNumber - decimalConvertToBinary.IntegerPortionOfUserNumber;
//Assert
Assert.AreEqual(3, decimalConvertToBinary.IntegerPortionOfUserNumber);
Assert.AreEqual(.1415M, decimalConvertToBinary.FractionalPortionOfUserNumber);
}
public void ConvertIntegerPortionOfUserNumberToBinaryTest()
{
//Arrange
DecimalConvertToBinary decimalConvertToBinary = new DecimalConvertToBinary();
List <int> ListOfDivisionResults = new List <int>();
decimalConvertToBinary.IntegerPortionOfUserNumber = 3;
//Act
do
{
ListOfDivisionResults.Insert(0, decimalConvertToBinary.IntegerPortionOfUserNumber % 2);
decimalConvertToBinary.IntegerPortionOfUserNumber /= 2;
} while (decimalConvertToBinary.IntegerPortionOfUserNumber != 0);
//Assert
Assert.AreEqual(1, ListOfDivisionResults[0]);
Assert.AreEqual(1, ListOfDivisionResults[1]);
Assert.AreEqual(2, ListOfDivisionResults.Count);
}
public void ConvertFractionalPortionOfUserNumberToBinaryTest()
{
//Arrange
DecimalConvertToBinary integerConvertToBinary = new DecimalConvertToBinary();
decimal FractionalPortionOfUserNumber = .14M;
List <int> ListOfResultsFromConvertFractionalPortionToBinary = new List <int>();
List <decimal> PreviousValuesOfFractionalPortionOfUserNumber = new List <decimal>();
//Act
do
{
FractionalPortionOfUserNumber = decimal.Multiply(FractionalPortionOfUserNumber, 2M);
if (PreviousValuesOfFractionalPortionOfUserNumber.Contains(FractionalPortionOfUserNumber))
{
break;
}
else if (FractionalPortionOfUserNumber >= 1M)
{
ListOfResultsFromConvertFractionalPortionToBinary.Add(1);
FractionalPortionOfUserNumber -= 1M;
}
else
{
ListOfResultsFromConvertFractionalPortionToBinary.Add(0);
}
PreviousValuesOfFractionalPortionOfUserNumber.Add(FractionalPortionOfUserNumber);
} while (true);
//Assert
Assert.AreEqual(0, ListOfResultsFromConvertFractionalPortionToBinary[0]);
Assert.AreEqual(0, ListOfResultsFromConvertFractionalPortionToBinary[1]);
Assert.AreEqual(1, ListOfResultsFromConvertFractionalPortionToBinary[2]);
Assert.AreEqual(1, ListOfResultsFromConvertFractionalPortionToBinary[11]);
Assert.AreEqual(21, ListOfResultsFromConvertFractionalPortionToBinary.Count);
}