/
AbstractValueTest.cs
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/
AbstractValueTest.cs
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// This file is part of bugreport.
// Copyright (c) 2006-2009 The bugreport Developers.
// See AUTHORS.txt for details.
// Licensed under the GNU General Public License, Version 3 (GPLv3).
// See LICENSE.txt for details.
using System;
using NUnit.Framework;
namespace bugreport
{
[TestFixture]
public class AbstractValueTest
{
private AbstractValue pointer;
private AbstractBuffer buffer;
[Test]
public void AddTaint()
{
var clean = new AbstractValue(0x31337);
Assert.IsFalse(clean.IsTainted);
var tainted = clean.AddTaint();
Assert.IsTrue(tainted.IsTainted);
Assert.AreNotSame(clean, tainted);
}
[Test]
public void AddTaintIf()
{
var clean = new AbstractValue(0x31337);
Assert.IsFalse(clean.IsTainted);
var notTainted = clean.AddTaintIf(0 == 1);
Assert.IsFalse(notTainted.IsTainted);
Assert.AreSame(clean, notTainted);
var tainted = clean.AddTaintIf(1 == 1);
Assert.IsTrue(tainted.IsTainted);
Assert.AreNotSame(clean, tainted);
}
[Test]
[ExpectedException(typeof(InvalidOperationException))]
public void AddTaintOnPointer()
{
buffer = new AbstractBuffer(AbstractValue.GetNewBuffer(1));
var clean = new AbstractValue(buffer);
clean.AddTaint();
}
[Test]
public void AssignmentAtByteZero()
{
var values = AbstractValue.GetNewBuffer(16);
pointer = new AbstractValue(values);
pointer.PointsTo[0] = new AbstractValue(0x31337);
Assert.AreEqual(0x31337, pointer.PointsTo[0].Value);
Assert.AreEqual("*0x00031337", pointer.ToString());
}
[Test]
public void AssignmentAtEnd()
{
var values = AbstractValue.GetNewBuffer(16);
pointer = new AbstractValue(values);
pointer.PointsTo[15] = new AbstractValue(0x31337);
Assert.AreEqual(0x31337, pointer.PointsTo[15].Value);
}
[Test]
[ExpectedException(typeof(ArgumentException))]
public void EmptyBuffer()
{
pointer = new AbstractValue(new AbstractBuffer(new AbstractValue[] {}));
}
[Test]
public void Equals()
{
Assert.IsFalse(new AbstractValue().Equals(null));
}
[Test]
public void Initialized()
{
var uninit = new AbstractValue(0xabcdef);
Assert.IsTrue(uninit.IsInitialized);
Assert.AreEqual(0xabcdef, uninit.Value);
}
[Test]
public void IsOutOfBoundsPropertySurviviesCopy()
{
var src = new AbstractValue(0x31337)
{
IsOutOfBounds = true
};
var dest = new AbstractValue(src);
Assert.IsTrue(dest.IsOutOfBounds);
}
[Test]
public void NoPointer()
{
var value = new AbstractValue(2).AddTaint();
Assert.IsNull(value.PointsTo);
StringAssert.Contains("0x00000002", value.ToString());
StringAssert.Contains("t", value.ToString());
}
[Test]
public void NotInitialized()
{
var uninitializedValue = new AbstractValue();
Assert.IsFalse(uninitializedValue.IsInitialized);
Assert.AreEqual(AbstractValue.UNKNOWN, uninitializedValue.Value);
Assert.AreEqual("?", uninitializedValue.ToString());
}
[Test]
[ExpectedException(typeof(ArgumentNullException))]
public void NullCopyCtor()
{
pointer = new AbstractValue((AbstractValue)null);
}
[Test]
public void OutOfBoundsPropertySurvivesCopy()
{
var src = new AbstractValue(0x31337)
{
IsOutOfBounds = true
};
var dest = new AbstractValue(src);
Assert.IsTrue(dest.IsOutOfBounds);
}
[Test]
public void Pointer()
{
buffer = new AbstractBuffer(new[] {new AbstractValue(2)});
pointer = new AbstractValue(buffer);
Assert.AreEqual(2, pointer.PointsTo[0].Value);
StringAssert.StartsWith("*0x00000002", pointer.ToString());
}
[Test]
public void PointerHashcodes()
{
pointer = new AbstractValue(new[] {new AbstractValue(1)});
var pointer2 = new AbstractValue(new[] {new AbstractValue(2)});
Assert.AreNotEqual(pointer.GetHashCode(), pointer2.GetHashCode());
}
[Test]
public void PointerPointer()
{
buffer = new AbstractBuffer(new[] {new AbstractValue(2)});
pointer = new AbstractValue(buffer);
var pointerPointer = new AbstractValue(new[] {pointer});
Assert.AreEqual(2, pointerPointer.PointsTo[0].PointsTo[0].Value);
StringAssert.StartsWith("**0x00000002", pointerPointer.ToString());
}
[Test]
public void PointerPointerPointer()
{
buffer = new AbstractBuffer(new[] {new AbstractValue(2)});
pointer = new AbstractValue(buffer);
var pointerPointer = new AbstractValue(new[] {pointer});
var pointerPointerPointer = new AbstractValue(new[] {pointerPointer});
Assert.AreEqual(2, pointerPointerPointer.PointsTo[0].PointsTo[0].PointsTo[0].Value);
StringAssert.StartsWith("***0x00000002", pointerPointerPointer.ToString());
}
[Test]
[ExpectedException(typeof(ArgumentOutOfRangeException))]
public void RequestedBufferTooLarge()
{
AbstractValue.GetNewBuffer(AbstractValue.MAX_BUFFER_SIZE + 1);
}
[Test]
public void TruncateValue()
{
var dwordValue = new AbstractValue(0xdeadbeef);
var byteValue = dwordValue.TruncateValueToByte();
Assert.AreEqual(0xef, byteValue.Value);
}
[Test]
[ExpectedException(typeof(ArgumentException))]
public void ZeroSizeBuffer()
{
pointer = new AbstractValue(new AbstractValue[] {});
}
}
}