public void HashCode()
{
for (int i = 0; i < 256; i++)
{
for (int j = 0; j < 256; j++)
{
BitSet256 left = new BitSet256();
BitSet256 right = new BitSet256();
left.Set(i);
right.Set(j);
int leftHash = left.GetHashCode();
int rightHash = right.GetHashCode();
if (i == j)
{
Assert.Equal(leftHash, rightHash);
}
else
{
Assert.NotEqual(leftHash, rightHash);
}
}
}
Random r = new Random(1234);
for (int i = 0; i < 1000; i++)
{
BitSet256 left = new BitSet256();
BitSet256 right = new BitSet256();
for (int j = 0; j < 12; j++)
{
left.Set(r.Next(0, 256));
right.Set(r.Next(0, 256));
}
int leftHash = left.GetHashCode();
int rightHash = right.GetHashCode();
if (left == right)
{
Assert.Equal(leftHash, rightHash);
}
else
{
Assert.NotEqual(leftHash, rightHash);
}
}
}
private void CalculateHashAndMask()
{
componentMask = new BitSet256();
sharedComponentMask = new BitSet256();
_hash = 0;
foreach (var kp in components)
{
_hash ^= kp.Key.GetHashCode();
componentMask.Set(ComponentMask.GetComponentIndex(kp.Key));
}
foreach (var kp in sharedComponents)
{
_hash ^= kp.Key.GetHashCode();
_hash ^= kp.Value.GetHashCode();
sharedComponentMask.Set(SharedComponentMask.GetSharedComponentIndex(kp.Key));
}
}
public void ContainsAll()
{
BitSet256 left = new BitSet256();
BitSet256 right = new BitSet256();
left.Set(0);
left.Set(12);
left.Set(70);
left.Set(128);
left.Set(156);
left.Set(255);
right.Set(0);
right.Set(12);
right.Set(70);
right.Set(128);
right.Set(255);
Assert.True(left.ContainsAll(right));
Assert.False(right.ContainsAll(left));
}
