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https://issues.apache.org/jira/browse/TINKERPOP-1862?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16334664#comment-16334664
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ASF GitHub Bot commented on TINKERPOP-1862:
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Github user dkuppitz commented on the issue:
https://github.com/apache/tinkerpop/pull/777
I agree this test should run for all GraphComputers, but the test may not
try to mutate the graph, as the test suite will run the test against a whole
bunch of immutable graphs.
Assuming that all we need is a pair 2 vertices connected via 2 edges in
opposite directions, we could use the Grateful Dead graph; this pattern occurs
1476 times in it.
> TinkerGraph VertexProgram message passing doesn't work properly when using
> Direction.BOTH
> -----------------------------------------------------------------------------------------
>
> Key: TINKERPOP-1862
> URL: https://issues.apache.org/jira/browse/TINKERPOP-1862
> Project: TinkerPop
> Issue Type: Bug
> Components: process, tinkergraph
> Affects Versions: 3.2.7
> Reporter: Philip Graff
> Priority: Major
>
> I think the messages are being sent properly in TinkerMessenger, but when I
> call messenger.receiveMessages(), the vertex is getting messages from the
> outVertex of their edges regardless of the edge direction. This is due to
> line 71 of TinkerMessenger (linked below) which calls
> Edge.vertices(direction).next(), thus getting the first result out of the
> Vertex iterator. For IN or OUT, this isn't a problem. But for BOTH, following
> line 124 of TinkerEdge (linked below), the outVertex is always returned
> first. TinkerMessenger needs to be modified to return the correct vertex (I
> think it's the one that != this.vertex).
> https://github.com/apache/tinkerpop/blob/master/tinkergraph-gremlin/src/main/java/org/apache/tinkerpop/gremlin/tinkergraph/process/computer/TinkerMessenger.java#L71
> https://github.com/apache/tinkerpop/blob/master/tinkergraph-gremlin/src/main/java/org/apache/tinkerpop/gremlin/tinkergraph/structure/TinkerEdge.java#L124
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