public void GroupsByHashProperly(int snapshotSize)
{
var snapshot = Enumerable.Range(0, snapshotSize).Select(i => new PayloadFromDisk <int>(ContentHash.Random(), i)).ToList();
var store = new ContentDirectorySnapshot <int>();
store.Add(snapshot);
// We have to add these into a Dictionary because the ordering of the groups is not guaranteed to be equivalent to
// GroupBy, nor the ordering inside the groups.
var groups = new Dictionary <ContentHash, List <PayloadFromDisk <int> > >();
foreach (var group in store.GroupByHash())
{
groups.Add(group.Key, group.OrderBy(x => x.Payload).ToList());
}
foreach (var group in snapshot.GroupBy(p => p.Hash))
{
groups.ContainsKey(group.Key).Should().BeTrue();
// The ordering within the group may not be the same either
var sortedPayloads = groups[group.Key].Select(x => x.Payload);
sortedPayloads.SequenceEqual(group.OrderBy(x => x.Payload).Select(x => x.Payload));
}
}
public void OrderedEnumerationIsCorrect(int snapshotSize)
{
var snapshot = Enumerable.Range(0, snapshotSize).Select(i => new PayloadFromDisk <int>(ContentHash.Random(), i)).OrderBy(x => x.Hash).ToList();
var store = new ContentDirectorySnapshot <int>();
store.Add(snapshot);
store.Count.Should().Be(snapshotSize);
var hashesFromStore = store.ListOrderedByHash().Select(x => x.Hash).ToList();
hashesFromStore.SequenceEqual(snapshot.Select(x => x.Hash)).Should().BeTrue();
}
public void SnapshotShouldNotFailWithOutOfRange()
{
var snapshot = new ContentDirectorySnapshot <int>();
for (short b = 0; b <= byte.MaxValue; b++)
{
var data = new byte[33];
data[0] = (byte)b;
var hash = new ContentHash(HashType.Vso0, data);
snapshot.Add(new PayloadFromDisk <int>(hash, 42));
}
}
