115 lines
3.0 KiB
C#
115 lines
3.0 KiB
C#
//
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// DecoderReplacementFallbackBuffer.cs
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//
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// Author:
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// Atsushi Enomoto <atsushi@ximian.com>
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//
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// Copyright (C) 2005 Novell, Inc. http://www.novell.com
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//
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using System;
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using System.IO;
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using System.Text;
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using NUnit.Framework;
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using Buffer = System.Text.DecoderReplacementFallbackBuffer;
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namespace MonoTests.System.Text
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{
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[TestFixture]
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public class DecoderReplacementFallbackBufferTest
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{
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private Buffer NewInstance ()
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{
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return new Buffer (new DecoderReplacementFallback ());
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}
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[Test]
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public void FallbackEmptyDefault ()
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{
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Buffer b = NewInstance ();
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Assert.IsTrue (b.Fallback (new byte [] {}, 0), "#0");
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Assert.IsFalse (b.MovePrevious (), "#1");
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Assert.AreEqual (1, b.Remaining, "#2");
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Assert.AreEqual ('?', b.GetNextChar (), "#3");
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Assert.AreEqual (0, b.Remaining, "#4");
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// the string is already consumed.
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Assert.AreEqual (char.MinValue, b.GetNextChar (), "#5");
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}
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[Test]
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public void FallbackDefaultEncodingUTF8 ()
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{
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Buffer b = Encoding.UTF8.DecoderFallback.CreateFallbackBuffer () as Buffer;
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Assert.IsTrue (b.Fallback (new byte [] {}, 0), "#1");
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Assert.IsFalse (b.MovePrevious (), "#2");
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Assert.AreEqual (1, b.Remaining, "#3");
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Assert.AreEqual ('\uFFFD', b.GetNextChar (), "#4");
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}
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[Test]
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public void FallbackEmptyForEncodingUTF8 ()
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{
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Buffer b = new DecoderReplacementFallbackBuffer (new DecoderReplacementFallback (String.Empty));
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Assert.IsFalse (b.Fallback (new byte [] {}, 0), "#1");
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Assert.IsFalse (b.MovePrevious (), "#2");
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Assert.AreEqual (0, b.Remaining, "#3");
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// the string does not exist.
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Assert.AreEqual (char.MinValue, b.GetNextChar (), "#4");
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}
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[Test]
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public void FallbackSequential ()
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{
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Buffer b = NewInstance ();
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b.Fallback (new byte [] {}, 0);
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b.GetNextChar ();
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b.Fallback (new byte [] {}, 0);
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}
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[Test]
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[ExpectedException (typeof (ArgumentException))]
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public void FallbackRecursiveError ()
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{
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Buffer b = NewInstance ();
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b.Fallback (new byte [] {}, 0);
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b.Fallback (new byte [] {}, 0);
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}
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[Test]
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[Category ("NotWorking")]
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public void Iterate ()
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{
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Assert.AreEqual ('\0', Encoding.UTF8.DecoderFallback
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.CreateFallbackBuffer ().GetNextChar (), "#1");
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Buffer b = NewInstance ();
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// Assert.AreEqual (1, b.Remaining, "#2");
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// Assert.AreEqual ('?', b.GetNextChar (), "#3");
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Assert.AreEqual (0, b.Remaining, "#4");
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Assert.AreEqual ('\0', b.GetNextChar (), "#5");
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// Assert.IsTrue (b.MovePrevious (), "#6");
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// Assert.AreEqual (1, b.Remaining, "#7");
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Assert.IsFalse (b.MovePrevious (), "#8");
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// Assert.AreEqual ('?', b.GetNextChar (), "#9");
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}
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[Test]
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public void Reset ()
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{
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DecoderReplacementFallback f = new DecoderReplacementFallback ("X");
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DecoderReplacementFallbackBuffer b = new DecoderReplacementFallbackBuffer (f);
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b.Fallback (new byte [0], 0);
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Assert.AreEqual (1, b.Remaining, "#1");
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b.Reset ();
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Assert.AreEqual (0, b.Remaining, "#2");
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b.Fallback (new byte [0], 0); // do not raise an error
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b.Reset ();
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Assert.AreEqual (0, (int) b.GetNextChar (), "#3");
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}
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}
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}
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