public void TestSymmetry()
{
byte[] xData = Encoding.ASCII.GetBytes("Lorem ipsum dolor sit amet,");
byte[] yData = Encoding.ASCII.GetBytes(" consectetur adipiscing elit.");
ICompressible forward = new MockEntity(xData.Concat(yData).ToArray());
ICompressible backward = new MockEntity(yData.Concat(xData).ToArray());
ISimilarity simTest = new Similarity();
Assert.IsTrue(simTest.GetComplexity(forward) == simTest.GetComplexity(backward));
}
public void TestIdempotency()
{
ICompressible x = new MockEntity(Encoding.ASCII.GetBytes("Lorem Ipsum Dolor"));
byte[] doubleArray = x.ToByteArray().Concat(x.ToByteArray()).ToArray();
byte[] emptyArray = new byte[0];
ICompressible xx = new MockEntity(doubleArray);
ICompressible e = new MockEntity(emptyArray);
ISimilarity simTest = new Similarity();
Assert.IsTrue(simTest.GetComplexity(x) == simTest.GetComplexity(xx));
Assert.IsTrue(simTest.GetComplexity(e) == 0);
}
public void TestMonotonicity()
{
byte[] xData = Encoding.ASCII.GetBytes("Lorem Ipsum Dolor");
byte[] appendingData = xData.Concat(Encoding.ASCII.GetBytes("sit amet, consectetur adipiscing elit")).ToArray();
ICompressible xy = new MockEntity(appendingData);
ICompressible x = new MockEntity(xData);
ISimilarity simTest = new Similarity();
Assert.IsTrue(simTest.GetComplexity(xy) >= simTest.GetComplexity(x));
}
public void TestDistributivity()
{
byte[] xData = Encoding.ASCII.GetBytes("Lorem ipsum dolor sit amet,");
byte[] yData = Encoding.ASCII.GetBytes(" consectetur adipiscing elit.");
byte[] zData = Encoding.ASCII.GetBytes("Suspendisse porttitor lectus");
ICompressible xy = new MockEntity(xData.Concat(yData).ToArray());
ICompressible xz = new MockEntity(xData.Concat(zData).ToArray());
ICompressible z = new MockEntity(zData);
ICompressible yz = new MockEntity(yData.Concat(zData).ToArray());
ISimilarity simTest = new Similarity();
Assert.IsTrue(simTest.GetComplexity(xy) + simTest.GetComplexity(z) <= simTest.GetComplexity(xz) + simTest.GetComplexity(yz));
}
