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 FillDB(DirectoryInfo di, PlaneDBOptions tableoptions)
{
using var db = new PlaneDB(di, FileMode.CreateNew, tableoptions);
var value = Enumerable.Repeat(Encoding.UTF8.GetBytes("hello world"), 512).SelectMany(i => i).ToArray();
Console.WriteLine($"Writing len={value.Length:N0}");
for (var i = 0; i < 10000; ++i)
{
if (!db.TryAdd(BitConverter.GetBytes(i), value))
{
throw new IOException("oops");
}
}
}
public void TestRemoveOrphans()
{
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 < 10; ++i)
{
Assert.IsTrue(db.TryAdd(BitConverter.GetBytes(i), value));
}
}
var junk = Path.Combine(di.FullName, "default-119191919191.planedb");
File.WriteAllText(junk, "test");
using (new PlaneDB(di, FileMode.OpenOrCreate, planeDBOptions)) {
Assert.IsFalse(File.Exists(junk));
}
}
public void TestLargeish()
{
var di = new DirectoryInfo("testdb");
var value = new byte[4096];
value[0] = 1;
value[4095] = 0xff;
using (var db = new PlaneDB(di, FileMode.CreateNew, planeDBOptions)) {
for (var i = 0; i < 10000; ++i)
{
Assert.IsTrue(db.TryAdd(BitConverter.GetBytes(i), value));
}
}
using (var db = new PlaneDB(di, FileMode.Open, planeDBOptions)) {
for (var i = 0; i < 10000; ++i)
{
Assert.IsTrue(db.TryGetValue(BitConverter.GetBytes(i), out var val));
Assert.IsTrue(value.AsSpan().SequenceEqual(val));
}
}
using (var db = new PlaneDB(di, FileMode.Open, planeDBOptions)) {
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 _));
var read = db.Select((e, i) => new KeyValuePair <byte[], int>(e.Key, i)).Count();
Assert.AreEqual(db.Count, read);
db.Clear();
Assert.AreEqual(db.Count, 0);
}
using (var db = new PlaneDB(di, FileMode.Open, planeDBOptions)) {
Assert.AreEqual(db.Count, 0);
}
}