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.---
