public void BenchmarkScalableBloomTestAndAdd()
{
var n = 100000;
var f = new ScalableBloomFilter(100000, 0.1, 0.8);
var data = new byte[n][];
for (int i = 0; i < n; i++)
{
data[i] = Encoding.ASCII.GetBytes(i.ToString());
}
for (int i = 0; i < n; i++)
{
f.TestAndAdd(data[i]);
}
}
public void TestScalableBloomTestAndAdd()
{
var f = new ScalableBloomFilter(1000, 0.01, 0.8);
// 'a' is not in the filter.
if (f.Test(A_BYTES))
{
Assert.Fail("'a' should not be a member");
}
var addedF = f.Add(A_BYTES);
Assert.AreSame(f, addedF, "Returned ScalableBloomFilter should be the same instance");
// 'a' is now in the filter.
if (!f.Test(A_BYTES))
{
Assert.Fail("'a' should be a member");
}
// 'a' is still in the filter.
if (!f.TestAndAdd(A_BYTES))
{
Assert.Fail("'a' should be a member");
}
// 'b' is not in the filter.
if (f.TestAndAdd(B_BYTES))
{
Assert.Fail("'b' should not be a member");
}
// 'a' is still in the filter.
if (!f.Test(A_BYTES))
{
Assert.Fail("'a' should be a member");
}
// 'b' is now in the filter.
if (!f.Test(B_BYTES))
{
Assert.Fail("'b' should be a member");
}
// 'c' is not in the filter.
if (f.Test(C_BYTES))
{
Assert.Fail("'c' should not be a member");
}
for (int i = 0; i < 10000; i++)
{
f.TestAndAdd(Encoding.ASCII.GetBytes(i.ToString()));
}
// 'x' should not be a false positive.
if (f.Test(X_BYTES))
{
Assert.Fail("'x' should be a member");
}
}