public void A_LWWDictionary_should_be_able_to_remove_entry()
{
var m1 = LWWDictionary.Create(
Tuple.Create(_node1, "a", 1),
Tuple.Create(_node2, "b", 2));
var m2 = LWWDictionary.Create(_node2, "c", 3);
var merged1 = m1.Merge(m2);
var m3 = merged1.Remove(_node1, "b");
Assert.Equal(merged1.Merge(m3).Entries, ImmutableDictionary.CreateRange(new[]
{
new KeyValuePair <string, int>("a", 1),
new KeyValuePair <string, int>("c", 3)
}));
// but if there is a conflicting update the entry is not removed
var m4 = merged1.SetItem(_node2, "b", 22);
Assert.Equal(m3.Merge(m4).Entries, ImmutableDictionary.CreateRange(new[]
{
new KeyValuePair <string, int>("a", 1),
new KeyValuePair <string, int>("b", 22),
new KeyValuePair <string, int>("c", 3)
}));
}
public void A_LWWDictionary_should_be_able_to_set_entries()
{
var m = LWWDictionary.Create(
Tuple.Create(_node1, "a", 1),
Tuple.Create(_node2, "b", 2));
Assert.Equal(m.Entries, ImmutableDictionary.CreateRange(new[]
{
new KeyValuePair <string, int>("a", 1),
new KeyValuePair <string, int>("b", 2)
}));
}
protected Update CreateUpdateStateCompletedCommand(string innerKey, IWriteConsistency writeConsistency = null)
{
return(Dsl.Update(
key: new LWWDictionaryKey <string, DeduplicationState>(
_receiver.ReplicatorKey),
initial: LWWDictionary.Create(node: _receiver.SelfUniqueAddress,
key: innerKey,
value: new DeduplicationState()
{
NumberAttempts = 0,
ProcessingState =
DeduplicationProcessingState.Processed,
PruneAfter =
_receiver.PruningConfiguration
.PruneAttemptedAfter != null
? DateTime.UtcNow + _receiver
.PruningConfiguration.PruneAttemptedAfter
: null
})
, consistency: writeConsistency,
modify: dds =>
{
if (dds.TryGetValue(innerKey, out DeduplicationState state))
{
state.ProcessingState =
DeduplicationProcessingState.Processed;
state.PruneAfter =
DateTime.UtcNow + _receiver
.PruningConfiguration.PruneCompletedAfter;
return dds.SetItem(_receiver.SelfUniqueAddress,
innerKey, state);
}
else
{
return dds.SetItem(_receiver.SelfUniqueAddress,
innerKey,
new DeduplicationState()
{
NumberAttempts = 0,
ProcessingState = DeduplicationProcessingState
.Processed,
PruneAfter = DateTime.UtcNow + _receiver
.PruningConfiguration
.PruneCompletedAfter
});
}
}));
}
public void A_LWWDictionary_should_be_able_to_have_its_entries_correctly_merged_with_another_LWWMap_with_other_entries()
{
var m1 = LWWDictionary.Create(
Tuple.Create(_node1, "a", 1),
Tuple.Create(_node1, "b", 2));
var m2 = LWWDictionary.Create(_node2, "c", 3);
var expected = ImmutableDictionary.CreateRange(new[]
{
new KeyValuePair <string, int>("a", 1),
new KeyValuePair <string, int>("b", 2),
new KeyValuePair <string, int>("c", 3),
});
// merge both ways
Assert.Equal(expected, m1.Merge(m2).Entries);
Assert.Equal(expected, m2.Merge(m1).Entries);
}
protected Update CreateAdvanceAndGetStateCommand(string innerKey, IWriteConsistency writeConsistency)
{
return(Dsl.Update(
key: new LWWDictionaryKey <string, DeduplicationState>(
_receiver.ReplicatorKey),
initial: LWWDictionary.Create(node: _receiver.SelfUniqueAddress,
key: innerKey,
value: new DeduplicationState()
{
NumberAttempts = 0,
ProcessingState =
DeduplicationProcessingState.NotAttempted,
PruneAfter = _receiver.PruningConfiguration
.PruneNotAttemptedAfter != null
? DateTime.UtcNow + _receiver
.PruningConfiguration.PruneNotAttemptedAfter
: (DateTime?)null
}
)
, consistency: writeConsistency,
modify: dds =>
{
if (dds.TryGetValue(innerKey, out DeduplicationState state))
{
if (state.ProcessingState ==
DeduplicationProcessingState.Error ||
state.ProcessingState ==
DeduplicationProcessingState.Processed)
{
return dds;
}
else if (state.NumberAttempts < _receiver.MaxAttempts)
{
state.NumberAttempts = state.NumberAttempts + 1;
state.ProcessingState = DeduplicationProcessingState
.Attempted;
state.PruneAfter = _receiver.PruningConfiguration
.PruneAttemptedAfter != null
? DateTime.UtcNow + _receiver
.PruningConfiguration.PruneAttemptedAfter
: (DateTime?)null;
return dds.SetItem(_receiver.SelfUniqueAddress, innerKey, state);
}
else
{
state.ProcessingState =
DeduplicationProcessingState.Error;
state.PruneAfter =
DateTime.UtcNow + _receiver
.PruningConfiguration.PruneErroredAfter;
return dds.SetItem(_receiver.SelfUniqueAddress,
innerKey, state);
}
}
else
{
return dds.SetItem(_receiver.SelfUniqueAddress, innerKey,
new DeduplicationState()
{
NumberAttempts = 0,
ProcessingState = DeduplicationProcessingState
.NotAttempted,
PruneAfter = _receiver.PruningConfiguration
.PruneNotAttemptedAfter != null
? DateTime.UtcNow + _receiver
.PruningConfiguration.PruneNotAttemptedAfter
: (DateTime?)null
});
}
}));
}