/
FuzzRegressionTests.cs
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/
FuzzRegressionTests.cs
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#region License
// Copyright (c) 2007 James Newton-King
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation
// files (the "Software"), to deal in the Software without
// restriction, including without limitation the rights to use,
// copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following
// conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
// OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
// HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
// WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
// OTHER DEALINGS IN THE SOFTWARE.
#endregion
using System.IO;
#if DNXCORE50
using Xunit;
using Test = Xunit.FactAttribute;
using Assert = Newtonsoft.Json.Tests.XUnitAssert;
#else
using NUnit.Framework;
#endif
#pragma warning disable xUnit1013
namespace Newtonsoft.Json.Tests
{
[TestFixture]
public class FuzzRegressionTests : TestFixtureBase
{
private static readonly JsonSerializer jsonSerializer = new();
public static void Roundtrip(string buffer)
{
var serialized1 = Serialize(Deserialize(buffer));
var serialized2 = Serialize(Deserialize(serialized1));
Assert.AreEqual(serialized1, serialized2);
}
private static string Serialize(object o)
{
using var sw1 = new StringWriter();
jsonSerializer.Serialize(sw1, o);
return sw1.ToString();
}
private static object Deserialize(string input)
{
using var sr = new StringReader(input);
using var tr = new JsonTextReader(sr);
return jsonSerializer.Deserialize(tr);
}
[Test]
public void LineCommentWithStarSlashCases()
{
// Fuzzer found these cases:
// The Json "// comment with */" would be serialized as "/* comment with */*/".
// It is now serialized as "// comment with */".
//
// Ideally this would be a [Theory] but we are targetting both NUnit and XUnit.
//
// This is a list of inputs and where they caused a crash.
// - Note that these are not minimal/reduced inputs.
var cases = new[] {
"[//*/I33/\n91.//3", // ParsePositiveInfinity
"[//*/t3.9/\n91675795,77//3", // ParseTrue
"[//*/f33339/\n91675795878,787,[]//3", // ParseFalse
"[//*/N333331/\n,[]//3", // ParseNumberNaN
"[//*/{/\n,7//J:[@", // ParseProperty
"[//*/06.6/\n,[]//3", // ParseNumber
"[5,78,,[//*/3,3,new 4* ,,,,,,33/\n,,,,[],33,,,,,,17911055//3814", // ParseConstructor
"[//*/---------------------------------------------------------------------------------------------------------16.6/\n,[]//3", // ParseReadNumber
"[//6*/)3333/\n,[]//3", // ValidateEnd
"[//*/{'33/\n,33,33//3", // ReadStringIntoBuffer
"[//*//\n8 ,8 ", // ParseComment
@"[//ô [ /
//""ÿ /'/*////
//[7
//
//"" @'///
////
////
//[6
//
//
//[1
// "" x
///***
//[2
//
,'/J ""' ", // WriteToken
"[2//***;****/,7*", // ReadNumberCharIntoBuffer
"[2///ÿ¢ ¢¢********/,,* ", // ParseValue
@"[// *//[
7//
// ""JJ·
//',J
//
//',o@7,7
//',o@/ / "" ]
//',o@7,7
//',o@Ó", // ParseComment
"[2//*/*", // ParsePostValue
"[//*/{A73/\n]1.//3:{\"'\":", // ReadUnquotedPropertyReportIfDone
};
foreach (var c in cases) {
Roundtrip(c);
}
}
}
}