public async Task GivenNoPreviousPaths_WhenPublishingPathCreatedEvent_ThenWePublish()
{
var client = this.GivenIEventStoreClient()
.WithAppendToStreamAsync(this._pathStream);
var reader = this.GivenIReadStreamedEvents <PathStream>()
.WithEvents(Enumerable.Empty <IEvent>());
var created = new PathCreatedEvent {
FeatureAdded = "bob",
Path = "let/me/show/you",
};
var aggregate = await this
.GivenAggregate(reader.Object, client.Object)
.WithLoad();
await aggregate
.WhenPublishing(created)
.ThenWePublish(client, created);
aggregate.Paths.Select(_ => _.Name)
.Should()
.BeEquivalentTo(new List <string> {
"let",
"let/me",
"let/me/show",
"let/me/show/you"
});
}
public async Task GivenOnePreExistingPath_WhenRemovingThePath_ThenThePathsAreEmptied()
{
var created = new PathCreatedEvent {
FeatureAdded = "bob",
Path = "let/me/show/you"
};
var removed = new PathRemovedEvent {
FeatureRemoved = "bob",
Path = "let/me/show/you"
};
var client = this.GivenIEventStoreClient()
.WithAppendToStreamAsync(this._pathStream);
var reader = this.GivenIReadStreamedEvents <PathStream>()
.WithEvents(new List <IEvent> {
created, removed
});
var aggregate = await this
.GivenAggregate(reader.Object, client.Object)
.WithLoad();
aggregate.Paths.Should().BeEmpty();
}
public async Task GivenPreExistingPaths_WhenRemovingThePath_ThenThePathsAreUpdated()
{
var created = new PathCreatedEvent {
FeatureAdded = "bob",
Path = "let/me/show/you"
};
var createdSecond = new PathCreatedEvent {
FeatureAdded = "bob",
Path = "let/me/show"
};
var createdThird = new PathCreatedEvent {
FeatureAdded = "bob",
Path = "let/me"
};
var client = this.GivenIEventStoreClient()
.WithAppendToStreamAsync(this._pathStream);
var reader = this.GivenIReadStreamedEvents <PathStream>()
.WithEvents(new List <IEvent> {
created, createdSecond, createdThird
});
var removed = new PathRemovedEvent {
FeatureRemoved = "bob",
Path = "let/me/show/you"
};
var aggregate = await this
.GivenAggregate(reader.Object, client.Object)
.WithLoad();
await aggregate
.WhenPublishing(removed)
.ThenWePublish(client, removed);
aggregate.Paths.Should()
.BeEquivalentTo(new List <Path>
{
new Path
{
Name = "let",
TotalFeatures = 2
},
new Path
{
Name = "let/me",
TotalFeatures = 2
},
new Path
{
Name = "let/me/show",
TotalFeatures = 1
}
});
}
public static EventData ToEventData(this PathCreatedEvent pathCreatedEvent, JsonSerializerOptions settings = null !)
{
var contentBytes = JsonSerializer.SerializeToUtf8Bytes(pathCreatedEvent, settings);
return(new EventData(
eventId: Uuid.NewUuid(),
type: pathCreatedEvent.Type,
data: contentBytes
));
}
private void Apply(PathCreatedEvent e)
{
var sections = PathHelper.TranformToPathLevels(e.Path);
var existingPaths = this.Paths
.Where(_ => sections.Contains(_.Name))
.Select(_ => _.Name)
.ToList();
var missingSections = sections
.Except(existingPaths)
.ToList();
if (existingPaths.Any())
{
this.Paths = this.Paths
.Select(p =>
{
if (sections.Contains(p.Name))
{
return(new Domain.Path
{
Name = p.Name,
TotalFeatures = p.TotalFeatures + 1,
});
}
return(p);
})
.ToList();
if (missingSections.Any())
{
this.Paths = this.Paths.Concat(
missingSections.Select(_ =>
new Domain.Path
{
Name = _,
TotalFeatures = 1,
}))
.ToList();
}
}
else if (!existingPaths.Any())
{
this.Paths = this.Paths.Concat(
sections.Select(_ =>
new Domain.Path
{
Name = _,
TotalFeatures = 1,
}))
.ToList();
}
}
public async Task GivenNotConflictingPaths_WhenPublishingPathCreatedEvent_ThenWePublishTheFeature()
{
var createdAlready = new PathCreatedEvent {
FeatureAdded = "bob",
Path = "let/me/show/you",
};
var client = this.GivenIEventStoreClient()
.WithAppendToStreamAsync(this._pathStream);
var reader = this.GivenIReadStreamedEvents <PathStream>()
.WithEvents(new List <IEvent> {
createdAlready
});
var created = new PathCreatedEvent {
FeatureAdded = "bob",
Path = "let/me/show",
};
var aggregate = await this
.GivenAggregate(reader.Object, client.Object)
.WithLoad();
await aggregate
.WhenPublishing(created)
.ThenWePublish(client, created);
aggregate.Paths.Should()
.BeEquivalentTo(new List <Path>
{
new Path
{
Name = "let",
TotalFeatures = 2,
},
new Path
{
Name = "let/me",
TotalFeatures = 2,
},
new Path
{
Name = "let/me/show",
TotalFeatures = 2,
},
new Path
{
Name = "let/me/show/you",
TotalFeatures = 1,
},
});
}
public async Task GivenOnePreExistingPath_WhenRemovingAnUnknownPath_ThenThePathIsUntouched()
{
var created = new PathCreatedEvent {
FeatureAdded = "bob",
Path = "let/me/show/you"
};
var removed = new PathRemovedEvent {
FeatureRemoved = "bob",
Path = "let/me/show/arrrrgh"
};
var client = this.GivenIEventStoreClient()
.WithAppendToStreamAsync(this._pathStream);
var reader = this.GivenIReadStreamedEvents <PathStream>()
.WithEvents(new List <IEvent> {
created, removed
});
var aggregate = await this
.GivenAggregate(reader.Object, client.Object)
.WithLoad();
aggregate.Paths.Should()
.BeEquivalentTo(new List <Path>
{
new Path
{
Name = "let",
TotalFeatures = 1
},
new Path
{
Name = "let/me",
TotalFeatures = 1
},
new Path
{
Name = "let/me/show",
TotalFeatures = 1
},
new Path
{
Name = "let/me/show/you",
TotalFeatures = 1
}
});
}
public async Task GivenUnsupportedEventInStream_WhenReading_ThenWeReturnEmptyList()
{
var eventOne = new PathCreatedEvent
{
Path = "🦄",
};
var results = new Dictionary <string, byte[]>
{
{ eventOne.Type, JsonSerializer.SerializeToUtf8Bytes(eventOne) },
};
var client = this.GivenIEventStoreClient()
.WithReadStreamAsync(this._stream, results);
await this
.GivenFeatureStreamEventsReader(client.Object)
.WhenReading()
.ThenWeReturnEmptyList();
}
public static async Task ThenWePublish(
this Func <Task> funk,
Mock <IEventStoreClient> mockedClient,
PathCreatedEvent e)
{
await funk();
mockedClient.Verify(
_ => _.AppendToStreamAsync(
It.IsAny <PathStream>(),
It.IsAny <StreamState>(),
It.Is <IEnumerable <EventData> >(items =>
items.All(ed =>
ed.Type.Equals(EventTypes.PathCreated) &&
JsonSerializer.Deserialize <PathCreatedEvent>(ed.Data.ToArray(), null) !.Path.Equals(e.Path, StringComparison.InvariantCultureIgnoreCase)
)),
It.IsAny <Action <EventStoreClientOperationOptions>?>(),
It.IsAny <UserCredentials?>(),
It.IsAny <CancellationToken>()),
Times.Once());
}
public async Task GivenEventsInStream_Whenreading_ThenWeReturnEventList()
{
var eventOne = new PathCreatedEvent
{
Path = "🦄",
};
var results = new Dictionary <string, byte[]>
{
{ eventOne.Type, JsonSerializer.SerializeToUtf8Bytes(eventOne) },
};
var client = this.GivenIEventStoreClient()
.WithReadStreamAsync(this._stream, results);
await PathStreamEventsReaderTestsExtenstions.ThenWeReturnEventList(this
.GivenPathStreamEventsReader(client.Object)
.WhenReading(), new List <IEvent> {
eventOne
});
}
public async Task GivenOtherPaths_WhenPublishingPathCreatedEvent_ThenWePublish()
{
var createdAlready = new PathCreatedEvent {
FeatureAdded = "derpy",
Path = "derpy/wants/muffins",
};
var client = this.GivenIEventStoreClient()
.WithAppendToStreamAsync(this._pathStream);
var reader = this.GivenIReadStreamedEvents <PathStream>()
.WithEvents(new List <IEvent> {
createdAlready
});
var created = new PathCreatedEvent {
FeatureAdded = "bob",
Path = "let.me",
};
var aggregate = await this
.GivenAggregate(reader.Object, client.Object)
.WithLoad();
await aggregate
.WhenPublishing(created)
.ThenWePublish(client, created);
aggregate.Paths.Select(_ => _.Name)
.Should()
.BeEquivalentTo(new List <string> {
"derpy",
"derpy/wants",
"derpy/wants/muffins",
"let",
"let.me"
});
}
