public void DoubleToBytesConverterTest_epsilon()
{
//arrange
double number = double.Epsilon;
string expected = "0000000000000000000000000000000000000000000000000000000000000001";
//act
string actual = DoubleToBytes.DoubleToBytesConverter(number);
//assert
Assert.AreEqual(expected, actual);
}
public void DoubleToBytesConverterTest_NaN()
{
//arrange
double number = double.NaN;
string expected = "1111111111111000000000000000000000000000000000000000000000000000";
//act
string actual = DoubleToBytes.DoubleToBytesConverter(number);
//assert
Assert.AreEqual(expected, actual);
}
public void DoubleToBytesConverterTest_maxvalue()
{
//arrange
double number = double.MaxValue;
string expected = "0111111111101111111111111111111111111111111111111111111111111111";
//act
string actual = DoubleToBytes.DoubleToBytesConverter(number);
//assert
Assert.AreEqual(expected, actual);
}
public void DoubleToBytesConverterTest_4294967295()
{
//arrange
double number = 4294967295.0;
string expected = "0100000111101111111111111111111111111111111000000000000000000000";
//act
string actual = DoubleToBytes.DoubleToBytesConverter(number);
//assert
Assert.AreEqual(expected, actual);
}
public void DoubleToBytesConverterTest_255point255()
{
//arrange
double number = 255.255;
string expected = "0100000001101111111010000010100011110101110000101000111101011100";
//act
string actual = DoubleToBytes.DoubleToBytesConverter(number);
//assert
Assert.AreEqual(expected, actual);
}
public void DoubleToBytesConverterTest_positivenull()
{
//arrange
double number = 0.0;
string expected = "0000000000000000000000000000000000000000000000000000000000000000";
//act
string actual = DoubleToBytes.DoubleToBytesConverter(number);
//assert
Assert.AreEqual(expected, actual);
}
public void DoubleToBytesConverterTest_positiveInfinity()
{
//arrange
double number = double.PositiveInfinity;
string expected = "0111111111110000000000000000000000000000000000000000000000000000";
//act
string actual = DoubleToBytes.DoubleToBytesConverter(number);
//assert
Assert.AreEqual(expected, actual);
}
public static void Write(double data, byte[] memoryStream, int startPosition)
{
DoubleToBytes convert = new DoubleToBytes();
convert.value = data;
memoryStream[startPosition] = convert.byte0;
memoryStream[startPosition + 1] = convert.byte1;
memoryStream[startPosition + 2] = convert.byte2;
memoryStream[startPosition + 3] = convert.byte3;
memoryStream[startPosition + 4] = convert.byte4;
memoryStream[startPosition + 5] = convert.byte5;
memoryStream[startPosition + 6] = convert.byte6;
memoryStream[startPosition + 7] = convert.byte7;
}