3c1f479b9d
Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9
108 lines
3.5 KiB
C#
108 lines
3.5 KiB
C#
//
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// MonoTests.System.ComponentModel.NullableConverterTest
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//
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// Author:
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// Ivan N. Zlatev <contact@i-nz.net>
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//
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// Copyright (C) 2008 Ivan N. Zlatev
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//
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//
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// Permission is hereby granted, free of charge, to any person obtaining
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// a copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to
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// permit persons to whom the Software is furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be
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// included in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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using System;
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using System.ComponentModel;
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using System.ComponentModel.Design.Serialization;
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using System.Globalization;
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using NUnit.Framework;
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namespace MonoTests.System.ComponentModel
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{
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[TestFixture]
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public class NullableConverterTest
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{
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[TypeConverter (typeof(MyTypeConverter))]
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private struct MyType
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{
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int value;
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}
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private class MyTypeConverter : TypeConverter
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{
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public override bool GetStandardValuesSupported (ITypeDescriptorContext context)
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{
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return true;
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}
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public override TypeConverter.StandardValuesCollection GetStandardValues (ITypeDescriptorContext context)
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{
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return new TypeConverter.StandardValuesCollection (new object[] {});
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}
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}
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[Test]
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public void PropertyValues ()
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{
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NullableConverter converter = new NullableConverter (typeof(MyType?));
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Assert.AreEqual (typeof(MyType?), converter.NullableType, "#1");
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Assert.AreEqual (typeof(MyType), converter.UnderlyingType, "#2");
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Assert.AreEqual (typeof(MyTypeConverter), converter.UnderlyingTypeConverter.GetType(), "#2");
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}
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[Test]
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public void CanConvertFrom ()
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{
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NullableConverter converter = new NullableConverter (typeof(MyType?));
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Assert.IsTrue (converter.CanConvertFrom (null, typeof(MyType)), "#1");
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Assert.IsFalse (converter.CanConvertFrom (null, typeof(object)), "#2");
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}
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[Test]
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public void CanConvertTo ()
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{
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NullableConverter converter = new NullableConverter (typeof(MyType?));
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Assert.IsTrue (converter.CanConvertTo (null, typeof(MyType)), "#1");
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Assert.IsFalse (converter.CanConvertTo (null, typeof(object)), "#2");
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}
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[Test]
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public void ConvertFrom_EmptyString ()
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{
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NullableConverter converter = new NullableConverter (typeof(MyType?));
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Assert.IsNull (converter.ConvertFrom (null, null, String.Empty), "#1");
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}
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[Test]
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public void GetStandardValues ()
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{
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NullableConverter converter = new NullableConverter (typeof(MyType?));
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Assert.IsTrue (converter.GetStandardValuesSupported (null), "#1");
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TypeConverter.StandardValuesCollection values = converter.GetStandardValues (null);
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// MyTypeConverter returns an empty values collection, but
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// NullableConverter adds a null value to the set.
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Assert.AreEqual (1, values.Count, "#2");
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Assert.AreEqual (null, values[0], "#3");
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}
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}
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}
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