public void MutationalEntryPeerStreamTest()
{
var config = new MutationConfig()
{
Description = "Test"
};
var entry = new MutationalEntry()
{
FuzzPercent = new FromToValue <double>(100),
ValidOffset = new FromToValue <long>(0, long.MaxValue),
MaxChanges = new FromToValue <ushort>(50),
FuzzPercentType = EFuzzingPercentType.PeerStream
};
// Config
config.Mutations.Add(entry);
entry.Changes.Add(new MutationalChange()
{
Weight = 1,
Append = new MutationalFromTo(0x01),
RemoveLength = new FromToValue <ushort>(),
AppendIterations = new FromToValue <ushort>(1)
});
// 100% / 50 changes
var input = new ManualFuzzingInput(new byte[200]);
using (var copy = new MemoryStream())
using (var stream = new FuzzingStream(config, input.GetStream()))
{
stream.CopyTo(copy, 200);
Assert.AreEqual(50, copy.ToArray().Count(u => u == 0x01));
}
// 0%
entry.FuzzPercent = new FromToValue <double>(0);
input = new ManualFuzzingInput(new byte[200]);
using (var copy = new MemoryStream())
using (var stream = new FuzzingStream(config, input.GetStream()))
{
stream.CopyTo(copy, 200);
Assert.AreEqual(200, copy.ToArray().Count(u => u == 0x00));
}
// Only offset 5
entry.FuzzPercent = new FromToValue <double>(100);
entry.ValidOffset = new FromToValue <long>(5);
entry.MaxChanges = new FromToValue <ushort>(1);
input = new ManualFuzzingInput(new byte[200]);
using (var stream = new FuzzingStream(config, input.GetStream()))
{
for (long x = 0; x < 200; x++)
{
var next = entry.Get(stream, x, 0);
if (x == 5)
{
Assert.IsNotNull(next);
}
else
{
Assert.IsNull(next);
}
}
}
// Max changes 2
entry.ValidOffset = new FromToValue <long>(0, long.MaxValue);
entry.MaxChanges = new FromToValue <ushort>(2);
input = new ManualFuzzingInput(new byte[200]);
using (var stream = new FuzzingStream(config, input.GetStream()))
{
stream.CopyTo(new MemoryStream(), 200);
Assert.AreEqual(2, stream.Log.Length);
}
}
public void MutationalEntryPeerByteTest()
{
var config = new MutationConfig()
{
Description = "Test"
};
var entry = new MutationalEntry()
{
FuzzPercent = new FromToValue <double>(100),
ValidOffset = new FromToValue <long>(0, long.MaxValue),
MaxChanges = new FromToValue <ushort>(ushort.MaxValue),
FuzzPercentType = EFuzzingPercentType.PeerByte
};
// Config
config.Mutations.Add(entry);
entry.Changes.Add(new MutationalChange()
{
Weight = 5,
Description = "Add A",
Append = new MutationalFromTo((byte)'A'),
RemoveLength = new FromToValue <ushort>(1),
AppendIterations = new FromToValue <ushort>(1)
});
entry.Changes.Add(new MutationalChange()
{
// Remmove
Weight = 1,
Description = "Remove",
RemoveLength = new FromToValue <ushort>(1),
AppendIterations = new FromToValue <ushort>(1)
});
// 100%
var input = new ManualFuzzingInput(new byte[200]);
using (var stream = new FuzzingStream(config, input.GetStream()))
{
for (long x = 0; x < 200; x++)
{
Assert.IsNotNull(entry.Get(stream, x, 0));
}
}
// 0%
entry.FuzzPercent = new FromToValue <double>(0);
input = new ManualFuzzingInput(new byte[200]);
using (var stream = new FuzzingStream(config, input.GetStream()))
{
for (long x = 0; x < 200; x++)
{
Assert.IsNull(entry.Get(stream, x, 0));
}
}
// Argument excepcion
entry.FuzzPercentType = (EFuzzingPercentType)197;
Assert.Throws <ArgumentException>(() => entry.Get(null, 0, 0));
// Only offset 5
entry.FuzzPercentType = EFuzzingPercentType.PeerByte;
entry.FuzzPercent = new FromToValue <double>(100);
entry.ValidOffset = new FromToValue <long>(5);
input = new ManualFuzzingInput(new byte[100]);
using (var stream = new FuzzingStream(config, input.GetStream()))
{
for (long x = 0; x < 100; x++)
{
var next = entry.Get(stream, x, 0);
if (x == 5)
{
Assert.IsNotNull(next);
}
else
{
Assert.IsNull(next);
}
}
}
// Max changes 2
entry.Changes.RemoveAt(1);
entry.ValidOffset = new FromToValue <long>(0, long.MaxValue);
entry.MaxChanges = new FromToValue <ushort>(2);
input = new ManualFuzzingInput(new byte[100]);
using (var stream = new FuzzingStream(config, input.GetStream()))
{
stream.CopyTo(new MemoryStream(), 16);
Assert.AreEqual(2, stream.Log.Length);
Assert.AreEqual(0, stream.Log[0].Offset);
Assert.AreEqual(1, stream.Log[1].Offset);
}
}