public void HandleSpecificModule_IsValidStructWIthArguments_ReturnsParsedValue()
{
// Arrange
string userInput = "None, 80";
string stringNumber = "80";
string enumOption = "None";
string[] arrayOfUserValues = { enumOption, stringNumber };
ushort number = 80;
IpV4FragmentationOptions ipV4FragmentationOptions = IpV4FragmentationOptions.MoreFragments;
Type typeOfEnum = typeof(IpV4Fragmentation);
IpV4Fragmentation ipV4Fragmentation = new IpV4Fragmentation(ipV4FragmentationOptions, number);
object[] parameters = new object[2] {
ipV4FragmentationOptions, number
};
_moduleStructHandlerMock.Setup(x => x.CheckIfStructMustHaveArgumentsAndReturnObject(typeOfEnum, userInput))
.Returns(ipV4Fragmentation);
// Act
var result = _target.HandleSpecificModule(typeOfEnum, userInput);
// Assert
result.Should().BeOfType <IpV4Fragmentation>();
result.GetType().GetProperty("Offset").GetValue(result).Should().Be(80);
result.GetType().GetProperty("Options").GetValue(result).Should().Be(IpV4FragmentationOptions.MoreFragments);
}
public static IpV4Fragmentation NextIpV4Fragmentation(this Random random)
{
IpV4FragmentationOptions ipV4FragmentationFlags = random.NextEnum <IpV4FragmentationOptions>();
ushort ipV4FragmentationOffset = (ushort)(random.NextUShort() / 8 * 8);
return(new IpV4Fragmentation(ipV4FragmentationFlags, ipV4FragmentationOffset));
}
public void CheckIfStructMustHaveArgumentsAndReturnObject_IsValidStructWithManyArguments_ReturnsObject()
{
// Arrange
ushort offset = 80;
IpV4FragmentationOptions options = IpV4FragmentationOptions.MoreFragments;
IpV4Fragmentation ipV4Fragmentation = new IpV4Fragmentation(options, offset);
string input = $"{options}, {offset}";
object[] array = new object[2] {
options, offset
};
_genericInstanceCreator.Setup(x => x.TryCreateNewInstance <IpV4Fragmentation?>(array))
.Returns(ipV4Fragmentation);
_moduleStructArgumentsHandler.Setup(x => x.InputToParametersForIpV4Fragmentation(input))
.Returns(array);
// Act
var result = _target.CheckIfStructMustHaveArgumentsAndReturnObject(typeof(IpV4Fragmentation), input);
// Assert
result.Should().BeOfType <IpV4Fragmentation>();
var pp = result.GetType().GetProperty("Offset").GetValue(result).Should().Be(offset);
result.GetType().GetProperty("Options").GetValue(result).Should().Be(options);
}
public IpV4Fragmentation(IpV4FragmentationOptions options, ushort offset)
{
this = new IpV4Fragmentation((ushort)(options | (IpV4FragmentationOptions)((int)offset / 8)));
if ((int)offset % 8 != 0)
{
throw new ArgumentException("offset must divide by 8", "offset");
}
if ((options & (IpV4FragmentationOptions)8191) != IpV4FragmentationOptions.None)
{
throw new ArgumentException("invalid options " + (object)options);
}
}
/// <summary>
/// Creates fragmentation field value according to the given information.
/// </summary>
/// <param name="options">Options for fragmentation (must be one of the values of the enum).</param>
/// <param name="offset">This field indicates where in the complete datagram this fragment belongs. Measured in bytes but must divide by 8.</param>
public IpV4Fragmentation(IpV4FragmentationOptions options, ushort offset)
: this((ushort)((ushort)options | (offset / 8)))
{
if (offset % 8 != 0)
{
throw new ArgumentException("offset must divide by 8", "offset");
}
if (((ushort)options & 0x1FFF) != 0)
{
throw new ArgumentException("invalid options " + options);
}
}
