public void TestBasicIterators()
{
var di = new DirectoryInfo("testdb");
using (var db = new PlaneDB(di, FileMode.CreateNew, planeDBOptions.DisableJournal())) {
var value = new byte[100];
for (var i = 0; i < 10000; ++i)
{
Assert.IsTrue(db.TryAdd(BitConverter.GetBytes(i), value));
}
}
using (var db = new PlaneDB(di, FileMode.Open, planeDBOptions.DisableJournal())) {
db.Compact();
// XXX Verify table count and sequence are correct
}
int read;
using (var db = new PlaneDB(di, FileMode.Open, planeDBOptions.DisableJournal())) {
Assert.AreEqual(db.Count, 10000);
Assert.IsTrue(db.TryRemove(BitConverter.GetBytes(1000), out _));
Assert.AreEqual(db.Count, 9999);
Assert.IsFalse(db.TryRemove(BitConverter.GetBytes(1000), out _));
read = db.Select((e, i) => new KeyValuePair <byte[], int>(e.Key, i)).Count();
Assert.AreEqual(db.Count, read);
}
using (var db = new PlaneDB(di, FileMode.Open, planeDBOptions.DisableJournal())) {
Assert.AreEqual(db.Count, 9999);
Assert.IsFalse(db.TryRemove(BitConverter.GetBytes(1000), out _));
Assert.AreEqual(db.Count, 9999);
read = db.KeysIterator.Select((e, i) => new KeyValuePair <byte[], int>(e, i)).Count();
Assert.AreEqual(db.Count, read);
}
using (var db = new PlaneDB(di, FileMode.Open, planeDBOptions.DisableJournal())) {
Assert.AreEqual(db.Count, 9999);
Assert.IsFalse(db.TryRemove(BitConverter.GetBytes(1000), out _));
Assert.AreEqual(db.Count, 9999);
read = db.Keys.Select((e, i) => new KeyValuePair <byte[], int>(e, i)).Count();
Assert.AreEqual(db.Count, read);
}
using (var db = new PlaneDB(di, FileMode.Open, planeDBOptions.DisableJournal())) {
Assert.AreEqual(db.Count, read);
db.Clear();
Assert.AreEqual(db.Count, 0);
}
using (var db = new PlaneDB(di, FileMode.Open, planeDBOptions.DisableJournal())) {
Assert.AreEqual(db.Count, 0);
}
}
private static void CompactOne(DirectoryInfo db, PlaneDBOptions popts)
{
var id = $"{db.FullName}:{popts.TableSpace}";
try {
Options.Write($"{id} - Opening");
using var plane = new PlaneDB(db, FileMode.Open, popts);
plane.OnFlushMemoryTable += (_, __) => Options.Error($"{id} - Flushed memory table");
plane.OnMergedTables += (_, __) => Options.Error($"{id} - Merged tables");
Options.Write($"{id} - Starting compaction");
plane.Compact();
Options.Write($"{id} - Finished compaction");
}
catch (BadMagicException ex) {
Options.Error($"{id} - {ex.Message}");
}
catch (AlreadyLockedException ex) {
Options.Error($"{id} - {ex.Message}");
}
}