public void InvertibleRemoveItemTest()
{
var addSize = 10000;
var testData = DataGenerator.Generate().Take(addSize).ToArray();
var errorRate = 0.001F;
var size = testData.Length;
var configuration = new DefaultBloomFilterConfiguration();
var bloomFilter = new InvertibleBloomFilter <TestEntity, long, sbyte>(configuration);
bloomFilter.Initialize(2 * size, errorRate);
foreach (var itm in testData)
{
bloomFilter.Add(itm);
}
var contained = testData.Count(item => bloomFilter.Contains(item));
foreach (var item in testData.Take(addSize / 2))
{
bloomFilter.Remove(item);
}
var containedAfterRemove = testData.Count(item => bloomFilter.Contains(item));
//tricky: assuming zero false positives.
Assert.AreEqual(contained, containedAfterRemove * 2, "Wrong item count after removal.");
}