/// <summary>
/// Initializes a new instance of the <see cref="MimeKit.IO.Filters.DecoderFilter"/> class.
/// </summary>
/// <remarks>
/// Creates a new <see cref="DecoderFilter"/> using the specified decoder.
/// </remarks>
/// <param name="decoder">A specific decoder for the filter to use.</param>
/// <exception cref="System.ArgumentNullException">
/// <paramref name="decoder"/> is <c>null</c>.
/// </exception>
public DecoderFilter (IMimeDecoder decoder)
{
if (decoder == null)
throw new ArgumentNullException ("decoder");
Decoder = decoder;
}
/// <summary>
/// Initializes a new instance of the <see cref="MimeKit.IO.Filters.DecoderFilter"/> class.
/// </summary>
/// <remarks>
/// Creates a new <see cref="DecoderFilter"/> using the specified decoder.
/// </remarks>
/// <param name="decoder">A specific decoder for the filter to use.</param>
/// <exception cref="System.ArgumentNullException">
/// <paramref name="decoder"/> is <c>null</c>.
/// </exception>
public DecoderFilter(IMimeDecoder decoder)
{
if (decoder == null)
{
throw new ArgumentNullException(nameof(decoder));
}
Decoder = decoder;
}
static void AssertArgumentExceptions(IMimeDecoder decoder)
{
var output = new byte[0];
Assert.Throws <ArgumentNullException> (() => decoder.Decode(null, 0, 0, output));
Assert.Throws <ArgumentOutOfRangeException> (() => decoder.Decode(new byte[0], -1, 0, output));
Assert.Throws <ArgumentOutOfRangeException> (() => decoder.Decode(new byte[1], 0, 10, output));
Assert.Throws <ArgumentNullException> (() => decoder.Decode(new byte[1], 0, 1, null));
Assert.Throws <ArgumentException> (() => decoder.Decode(new byte[1], 0, 1, output));
}
static void CloneAndAssert(IMimeDecoder decoder)
{
// first, set some random state
SetRandomState(decoder);
var clone = decoder.Clone();
AssertState(decoder, clone);
AssertArgumentExceptions(decoder);
}
static void ResetAndAssert(IMimeDecoder decoder)
{
// clone the decoder at it's initial state
var clone = decoder.Clone();
// set some random state on the clone
SetRandomState(clone);
// reset the clone and make sure it matches
clone.Reset();
AssertState(decoder, clone);
}
static unsafe int DecodeToken (Token token, IMimeDecoder decoder, byte* input, byte* output)
{
byte* inptr = input + token.StartIndex;
return decoder.Decode (inptr, token.Length, output);
}
static void ResetAndAssert (IMimeDecoder decoder)
{
// clone the decoder at it's initial state
var clone = decoder.Clone ();
// set some random state on the clone
SetRandomState (clone);
// reset the clone and make sure it matches
clone.Reset ();
AssertState (decoder, clone);
}
static void CloneAndAssert (IMimeDecoder decoder)
{
// first, set some random state
SetRandomState (decoder);
var clone = decoder.Clone ();
AssertState (decoder, clone);
AssertArgumentExceptions (decoder);
}
static void AssertArgumentExceptions (IMimeDecoder decoder)
{
var output = new byte[0];
Assert.Throws<ArgumentNullException> (() => decoder.Decode (null, 0, 0, output));
Assert.Throws<ArgumentOutOfRangeException> (() => decoder.Decode (new byte[0], -1, 0, output));
Assert.Throws<ArgumentOutOfRangeException> (() => decoder.Decode (new byte[1], 0, 10, output));
Assert.Throws<ArgumentNullException> (() => decoder.Decode (new byte[1], 0, 1, null));
Assert.Throws<ArgumentException> (() => decoder.Decode (new byte[1], 0, 1, output));
}
