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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Collections;
using System.ComponentModel;
using System.Runtime.Serialization;
namespace PresentationCore.Tests.BinaryFormat;
public class BinaryFormattedTypes
{
[Theory]
[MemberData(nameof(BinaryFormattedTypes_TestData))]
public void Types_UseBinaryFormatter(Type type)
{
bool iSerializable = type.IsAssignableTo(typeof(ISerializable));
#pragma warning disable SYSLIB0050 // Type or member is obsolete
bool serializable = type.IsSerializable;
#pragma warning restore SYSLIB0050
Assert.True(iSerializable || serializable, "Type should either implement ISerializable or be marked as [Serializable]");
var converter = TypeDescriptor.GetConverter(type);
Assert.False(
converter.CanConvertFrom(typeof(string)) && converter.CanConvertTo(typeof(string)),
"Type should not be convertable back and forth to string.");
Assert.False(
converter.CanConvertFrom(typeof(byte[])) && converter.CanConvertTo(typeof(byte[])),
"Type should not be convertable back and forth to byte[].");
}
public static TheoryData<Type> BinaryFormattedTypes_TestData => new()
{
typeof(Hashtable),
typeof(ArrayList),
typeof(PointF),
typeof(RectangleF),
typeof(List<string>),
};
[Theory]
[MemberData(nameof(NotBinaryFormattedTypes_TestData))]
public void Types_DoNotUseBinaryFormatter(Type type)
{
var converter = TypeDescriptor.GetConverter(type);
Assert.True(
(converter.CanConvertFrom(typeof(string)) && converter.CanConvertTo(typeof(string)))
|| (converter.CanConvertFrom(typeof(byte[])) && converter.CanConvertTo(typeof(byte[]))),
"Type should be convertable back and forth to string or byte[].");
}
public static TheoryData<Type> NotBinaryFormattedTypes_TestData => new()
{
typeof(System.Drawing.Point),
typeof(System.Drawing.Size),
typeof(SizeF),
typeof(Rectangle),
typeof(Color)
};
} |