106 lines
2.7 KiB
C#
106 lines
2.7 KiB
C#
//
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// DecoderReplacementFallback.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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namespace MonoTests.System.Text
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{
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[TestFixture]
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public class DecoderReplacementFallbackTest
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{
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[Test]
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public void Defaults ()
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{
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DecoderReplacementFallback f =
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new DecoderReplacementFallback ();
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Assert.AreEqual ("?", f.DefaultString, "#1");
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Assert.AreEqual (1, f.MaxCharCount, "#2");
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f = new DecoderReplacementFallback (String.Empty);
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Assert.AreEqual (String.Empty, f.DefaultString, "#3");
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Assert.AreEqual (0, f.MaxCharCount, "#4");
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f = Encoding.UTF8.DecoderFallback as DecoderReplacementFallback;
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Assert.IsNotNull (f, "#5");
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// This behavior was introduced as
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// http://support.microsoft.com/kb/940521/
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Assert.AreEqual ("\uFFFD", f.DefaultString, "#6");
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Assert.AreEqual (1, f.MaxCharCount, "#7");
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// after beta2 this test became invalid.
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//f = new MyEncoding ().DecoderFallback as DecoderReplacementFallback;
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//Assert.IsNotNull (f, "#8");
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//Assert.AreEqual (String.Empty, f.DefaultString, "#9");
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//Assert.AreEqual (0, f.MaxCharCount, "#10");
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f = DecoderFallback.ReplacementFallback as DecoderReplacementFallback;
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Assert.AreEqual ("?", f.DefaultString, "#11");
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Assert.AreEqual (1, f.MaxCharCount, "#12");
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}
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[Test]
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[ExpectedException (typeof (InvalidOperationException))]
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public void DontChangeReadOnlyUTF8DecoderFallback ()
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{
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Encoding.UTF8.DecoderFallback =
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new DecoderReplacementFallback ();
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}
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[Test]
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public void DontChangeReadOnlyCodePageDecoderFallback ()
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{
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Encoding encoding = Encoding.GetEncoding (Encoding.Default.CodePage);
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try {
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encoding.DecoderFallback = new DecoderReplacementFallback ();
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Assert.Fail ("#1");
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} catch (InvalidOperationException ex) {
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Assert.AreEqual (typeof (InvalidOperationException), ex.GetType (), "#2");
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Assert.IsNull (ex.InnerException, "#3");
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Assert.IsNotNull (ex.Message, "#4");
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}
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}
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[Test]
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[ExpectedException (typeof (InvalidOperationException))]
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public void CustomEncodingSetEncoderFallback ()
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{
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new MyEncoding ().DecoderFallback =
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new DecoderReplacementFallback ();
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}
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[Test]
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[ExpectedException (typeof (InvalidOperationException))]
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public void EncodingSetNullDecoderFallback ()
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{
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Encoding.Default.DecoderFallback = null;
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}
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[Test]
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// Don't throw an exception
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public void SetDecoderFallback ()
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{
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Encoding.Default.GetDecoder ().Fallback =
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new DecoderReplacementFallback ();
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}
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[Test]
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[ExpectedException (typeof (ArgumentNullException))]
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public void DecoderSetNullFallback ()
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{
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Encoding.Default.GetDecoder ().Fallback = null;
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}
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}
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}
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