public void should_have_entries_in_sorted_order()
{
var streamId = "account--696193173";
var result = _tableIndex.GetRange(streamId, 0, 4).ToArray();
var hash = (ulong)_lowHasher.Hash(streamId) << 32 | _highHasher.Hash(streamId);
Assert.That(result.Count(), Is.EqualTo(5));
Assert.That(result[0].Stream, Is.EqualTo(hash));
Assert.That(result[0].Version, Is.EqualTo(4));
Assert.That(result[0].Position, Is.EqualTo(10));
Assert.That(result[1].Stream, Is.EqualTo(hash));
Assert.That(result[1].Version, Is.EqualTo(3));
Assert.That(result[1].Position, Is.EqualTo(8));
Assert.That(result[2].Stream, Is.EqualTo(hash));
Assert.That(result[2].Version, Is.EqualTo(2));
Assert.That(result[2].Position, Is.EqualTo(6));
Assert.That(result[3].Stream, Is.EqualTo(hash));
Assert.That(result[3].Version, Is.EqualTo(1));
Assert.That(result[3].Position, Is.EqualTo(4));
Assert.That(result[4].Stream, Is.EqualTo(hash));
Assert.That(result[4].Version, Is.EqualTo(0));
Assert.That(result[4].Position, Is.EqualTo(2));
streamId = "LPN-FC002_LPK51001";
result = _tableIndex.GetRange(streamId, 0, 4).ToArray();
hash = (ulong)_lowHasher.Hash(streamId) << 32 | _highHasher.Hash(streamId);
Assert.That(result.Count(), Is.EqualTo(5));
Assert.That(result[0].Stream, Is.EqualTo(hash));
Assert.That(result[0].Version, Is.EqualTo(4));
Assert.That(result[0].Position, Is.EqualTo(9));
Assert.That(result[1].Stream, Is.EqualTo(hash));
Assert.That(result[1].Version, Is.EqualTo(3));
Assert.That(result[1].Position, Is.EqualTo(7));
Assert.That(result[2].Stream, Is.EqualTo(hash));
Assert.That(result[2].Version, Is.EqualTo(2));
Assert.That(result[2].Position, Is.EqualTo(5));
Assert.That(result[3].Stream, Is.EqualTo(hash));
Assert.That(result[3].Version, Is.EqualTo(1));
Assert.That(result[3].Position, Is.EqualTo(3));
Assert.That(result[4].Stream, Is.EqualTo(hash));
Assert.That(result[4].Version, Is.EqualTo(0));
Assert.That(result[4].Position, Is.EqualTo(1));
}
public void should_still_have_all_entries_in_sorted_order()
{
var streamId = "testStream-1";
var result = _tableIndex.GetRange(streamId, 0, 5).ToArray();
var hash = (ulong)_lowHasher.Hash(streamId) << 32 | _highHasher.Hash(streamId);
Assert.That(result.Count(), Is.EqualTo(6));
Assert.That(result[0].Stream, Is.EqualTo(hash));
Assert.That(result[0].Version, Is.EqualTo(5));
Assert.That(result[0].Position, Is.EqualTo(500));
Assert.That(result[1].Stream, Is.EqualTo(hash));
Assert.That(result[1].Version, Is.EqualTo(4));
Assert.That(result[1].Position, Is.EqualTo(400));
Assert.That(result[2].Stream, Is.EqualTo(hash));
Assert.That(result[2].Version, Is.EqualTo(3));
Assert.That(result[2].Position, Is.EqualTo(300));
Assert.That(result[3].Stream, Is.EqualTo(hash));
Assert.That(result[3].Version, Is.EqualTo(2));
Assert.That(result[3].Position, Is.EqualTo(200));
Assert.That(result[4].Stream, Is.EqualTo(hash));
Assert.That(result[4].Version, Is.EqualTo(1));
Assert.That(result[4].Position, Is.EqualTo(100));
Assert.That(result[5].Stream, Is.EqualTo(hash));
Assert.That(result[5].Version, Is.EqualTo(0));
Assert.That(result[5].Position, Is.EqualTo(0));
}
public void should_return_only_one_element_if_concurrency_duplicate_happens_on_range_query_as_well()
{
var res = _tableIndex.GetRange(0xADA, 0, 100).ToList();
Assert.That(res.Count(), Is.EqualTo(1));
Assert.That(res[0].Stream, Is.EqualTo(0xADA));
Assert.That(res[0].Version, Is.EqualTo(0));
Assert.That(res[0].Position, Is.EqualTo(0xFF00));
}
public void should_return_only_one_element_if_concurrency_duplicate_happens_on_range_query_as_well()
{
var res = _tableIndex.GetRange("0xADA", 0, 100).ToList();
ulong hash = (ulong)_lowHasher.Hash("0xADA");
hash = _ptableVersion == PTableVersions.Index32Bit ? hash : hash << 32 | _highHasher.Hash("0xADA");
Assert.That(res.Count(), Is.EqualTo(1));
Assert.That(res[0].Stream, Is.EqualTo(hash));
Assert.That(res[0].Version, Is.EqualTo(0));
Assert.That(res[0].Position, Is.EqualTo(0xFF00));
}
public void throws_maybe_corrupt_index_exception_if_verification_disabled(byte version)
{
//the MaybeCorruptIndexException is caught internally and should trigger an index file deletion if caught
ConstructTableIndexWithCorruptIndexEntries(version, true);
Assert.Throws <MaybeCorruptIndexException>(() => {
//since index entries are sorted in descending order, the corrupted index entry corresponds to NumIndexEntries/2+1
_tableIndex.GetRange(StreamName, NumIndexEntries / 2 + 1, NumIndexEntries / 2 + 1, null).ToArray();
});
//force verify file should be created
Assert.True(File.Exists(Path.Combine(PathName, TableIndex.ForceIndexVerifyFilename)));
}
public void should_return_empty_collection_when_stream_is_not_in_db()
{
var res = _tableIndex.GetRange("0xFEED", 0, 100);
Assert.That(res, Is.Empty);
}
public void throw_argumentoutofrangeexception_on_range_query_when_provided_with_negative_start_version()
{
Assert.Throws <ArgumentOutOfRangeException>(() => _tableIndex.GetRange(0x0000, -1, int.MaxValue).ToArray());
}
public void should_return_empty_range_for_nonexisting_stream()
{
var range = _tableIndex.GetRange(0xFEED, 0, int.MaxValue).ToArray();
Assert.AreEqual(0, range.Length);
}
