|
public Lookup ( Key key, |
||
| key | Key | |
| value | ||
| return | bool | |
public void AddAndLookupItems()
{
MemTable mt = new MemTable();
List<KeyValuePair<Key, Value>> values = new List<KeyValuePair<Key, Value>>();
for (int i = 0; i < 10000; i++) {
var randomKey = Key.Random(40);
var randomValue = Value.Random(256);
values.Add(new KeyValuePair<Key, Value>(randomKey, randomValue));
mt.Add(randomKey, randomValue);
}
Value value;
foreach (var pair in values) {
Assert.IsTrue(mt.Lookup(pair.Key, out value));
Assert.AreEqual(pair.Value, value);
}
Assert.IsFalse(mt.Lookup(Key.Random(40), out value));
Assert.AreEqual(10000 * (40 + 256), mt.Size);
Assert.IsTrue(mt.Full);
}
public void AddAndLookupItemsPersisted()
{
string path = Path.GetFullPath("TestData\\AddAndLookupItemsPersisted");
if (!Directory.Exists(path))
Directory.CreateDirectory(path);
JournalWriter jw = new JournalWriter("TestData\\AddAndLookupItemsPersisted", 523, false);
List<KeyValuePair<Key, Value>> values = new List<KeyValuePair<Key, Value>>();
for (int i = 0; i < 10000; i++) {
var randomKey = Key.Random(40);
var randomValue = Value.Random(256);
values.Add(new KeyValuePair<Key, Value>(randomKey, randomValue));
jw.Add(randomKey, randomValue);
}
jw.Close();
MemTable mtl = new MemTable();
mtl.ReadFromJournal("TestData\\AddAndLookupItemsPersisted", 523);
Value value;
foreach (var pair in values) {
Assert.IsTrue(mtl.Lookup(pair.Key, out value));
Assert.AreEqual(pair.Value, value);
}
Assert.IsFalse(mtl.Lookup(Key.Random(40), out value));
Assert.AreEqual(10000 * (40 + 256), mtl.Size);
Assert.IsTrue(mtl.Full);
}
public void SetItemsMultipleTimes()
{
MemTable mt = new MemTable();
Dictionary<Key, Value> values = new Dictionary<Key, Value>();
for (int i = 0; i < 10000; i++) {
var randomKey = new Key(new ByteArray(BitConverter.GetBytes(i % 10)));
var randomValue = Value.Random(256);
values[randomKey] = randomValue;
mt.Add(randomKey, randomValue);
}
Value value;
foreach (var pair in values) {
Assert.IsTrue(mt.Lookup(pair.Key, out value));
Assert.AreEqual(pair.Value, value);
}
Assert.IsFalse(mt.Lookup(Key.Random(4), out value));
Assert.AreEqual(10, mt.Enumerate().Count());
Assert.AreEqual(10, values.Count);
}
public bool Lookup(Key key, out Value value)
{
return(_memTable.Lookup(key, out value));
}