public void SSWDNoPruneDuringSnapshot()
{
var dict = new SnapshotSingleWriterDictionary <int, int>();
for (int i = 0; i < 10; ++i)
{
dict.Add(i, i);
}
var view = dict.TakeSnapshot();
var t = new Task(() => dict.BlockingPruneOldValues());
t.Start();
for (int i = 0; i < 10; ++i)
{
int actualValue = 0;
Assert.IsTrue(view.TryGetValue(i, out actualValue));
Assert.AreEqual(i, actualValue);
}
Assert.IsFalse(t.IsCompleted);
view.Dispose();
t.Wait();
}
public void SSWDSnapshotViewNotAffectedByNewWrites()
{
Prop.ForAll <Tuple <int, int>[]>(kvs => {
var dict = new SnapshotSingleWriterDictionary <int, int>();
foreach (var kv in kvs)
{
dict.Add(kv.Item1, kv.Item2);
}
using (var view = dict.TakeSnapshot())
{
foreach (var kv in kvs)
{
dict.Add(kv.Item1, kv.Item2 + 1);
int actualValue;
Assert.IsTrue(view.TryGetValue(kv.Item1, out actualValue));
Assert.AreNotEqual(kv.Item2, actualValue);
Assert.IsTrue(dict.TryGetValue(kv.Item1, out actualValue));
Assert.AreNotEqual(kv.Item2 + 1, actualValue);
}
}
});
}