public void the_file_gets_created_and_can_be_read()
{
var indexEntrySize = PTable.IndexEntryV4Size;
if (_ptableVersion == PTableVersions.IndexV1)
{
indexEntrySize = PTable.IndexEntryV1Size;
}
else if (_ptableVersion == PTableVersions.IndexV2)
{
indexEntrySize = PTable.IndexEntryV2Size;
}
else if (_ptableVersion == PTableVersions.IndexV3)
{
indexEntrySize = PTable.IndexEntryV3Size;
}
var table = new HashListMemTable(_ptableVersion, maxSize: 10);
table.Add(0x010100000000, 0x0001, 0x0001);
table.Add(0x010500000000, 0x0001, 0x0002);
table.Add(0x010200000000, 0x0001, 0x0003);
table.Add(0x010200000000, 0x0002, 0x0003);
using (var sstable = PTable.FromMemtable(table, Filename, Constants.PTableInitialReaderCount, Constants.PTableMaxReaderCountDefault,
skipIndexVerify: _skipIndexVerify,
useBloomFilter: true)) {
var fileinfo = new FileInfo(Filename);
var midpointsCached = PTable.GetRequiredMidpointCountCached(4, _ptableVersion);
Assert.AreEqual(
PTableHeader.Size + 4 * indexEntrySize + midpointsCached * indexEntrySize +
PTableFooter.GetSize(_ptableVersion) + PTable.MD5Size, fileinfo.Length);
var items = sstable.IterateAllInOrder().ToList();
Assert.AreEqual(GetHash(0x010500000000), items[0].Stream);
Assert.AreEqual(0x0001, items[0].Version);
Assert.AreEqual(GetHash(0x010200000000), items[1].Stream);
Assert.AreEqual(0x0002, items[1].Version);
Assert.AreEqual(GetHash(0x010200000000), items[2].Stream);
Assert.AreEqual(0x0001, items[2].Version);
Assert.AreEqual(GetHash(0x010100000000), items[3].Stream);
Assert.AreEqual(0x0001, items[3].Version);
var stream = (ulong)0x010200000000;
Assert.True(sstable.TryGetLatestEntry(stream, out var entry));
Assert.AreEqual(GetHash(stream), entry.Stream);
Assert.AreEqual(0x0002, entry.Version);
Assert.AreEqual(0x0003, entry.Position);
}
}
public void midpoints_are_cached_in_ptable_footer()
{
var numIndexEntries = 14;
var requiredMidpoints = PTable.GetRequiredMidpointCountCached(numIndexEntries, PTableVersions.IndexV4);
var newTableFileCopy = GetTempFilePath();
File.Copy(_newtableFile, newTableFileCopy);
using (var filestream = File.Open(newTableFileCopy, FileMode.Open, FileAccess.Read))
{
var footerSize = PTableFooter.GetSize(PTableVersions.IndexV4);
Assert.AreEqual(filestream.Length, PTableHeader.Size + numIndexEntries * PTable.IndexEntryV4Size + requiredMidpoints * PTable.IndexEntryV4Size + footerSize + PTable.MD5Size);
filestream.Seek(PTableHeader.Size + numIndexEntries * PTable.IndexEntryV4Size + requiredMidpoints * PTable.IndexEntryV4Size, SeekOrigin.Begin);
var ptableFooter = PTableFooter.FromStream(filestream);
Assert.AreEqual(FileType.PTableFile, ptableFooter.FileType);
Assert.AreEqual(PTableVersions.IndexV4, ptableFooter.Version);
Assert.AreEqual(requiredMidpoints, ptableFooter.NumMidpointsCached);
}
}
public void the_file_gets_created()
{
var indexEntrySize = PTable.IndexEntryV4Size;
if (_ptableVersion == PTableVersions.IndexV1)
{
indexEntrySize = PTable.IndexEntryV1Size;
}
else if (_ptableVersion == PTableVersions.IndexV2)
{
indexEntrySize = PTable.IndexEntryV2Size;
}
else if (_ptableVersion == PTableVersions.IndexV3)
{
indexEntrySize = PTable.IndexEntryV3Size;
}
var table = new HashListMemTable(_ptableVersion, maxSize: 10);
table.Add(0x010100000000, 0x0001, 0x0001);
table.Add(0x010500000000, 0x0001, 0x0002);
table.Add(0x010200000000, 0x0001, 0x0003);
table.Add(0x010200000000, 0x0002, 0x0003);
using (var sstable = PTable.FromMemtable(table, Filename, skipIndexVerify: _skipIndexVerify)) {
var fileinfo = new FileInfo(Filename);
var midpointsCached = PTable.GetRequiredMidpointCountCached(4, _ptableVersion);
Assert.AreEqual(
PTableHeader.Size + 4 * indexEntrySize + midpointsCached * indexEntrySize +
PTableFooter.GetSize(_ptableVersion) + PTable.MD5Size, fileinfo.Length);
var items = sstable.IterateAllInOrder().ToList();
Assert.AreEqual(GetHash(0x010500000000), items[0].Stream);
Assert.AreEqual(0x0001, items[0].Version);
Assert.AreEqual(GetHash(0x010200000000), items[1].Stream);
Assert.AreEqual(0x0002, items[1].Version);
Assert.AreEqual(GetHash(0x010200000000), items[2].Stream);
Assert.AreEqual(0x0001, items[2].Version);
Assert.AreEqual(GetHash(0x010100000000), items[3].Stream);
Assert.AreEqual(0x0001, items[3].Version);
}
}