public void Int32_ShouldReturnExpectedResult(int dividend, int divisor, int expected)
{
// Act
var actual = IntegerMath.Modulo(dividend, divisor);
// Assert
Assert.Equal(expected, actual);
}
public void Int32_ShouldThrowDivideByZeroException_WhenDivisorIsZero()
{
// Act
var exception = Record.Exception(() =>
{
IntegerMath.Modulo((int)10, (int)0);
});
// Assert
Assert.IsType <DivideByZeroException>(exception);
}
/// <summary>
/// Calculates the padding needed to get the specified offset to a multiple of the specified boundary.
/// </summary>
/// <param name="offset">The offset.</param>
/// <param name="boundary">The boundary.</param>
/// <returns>The number of padding bytes to add.</returns>
public static long GetPadding(long offset, int boundary)
{
#region Contract
if (boundary <= 0)
{
throw new ArgumentOutOfRangeException(nameof(boundary));
}
#endregion
if (BinaryMath.IsPowerOfTwoOrZero(boundary))
{
return((long)BinaryMath.GetPadding(unchecked ((ulong)offset), boundary));
}
else
{
return(IntegerMath.Modulo(boundary - IntegerMath.Modulo(offset, boundary), boundary));
}
}