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Johnathan Corgan
f478f51afe
With the root pinned, n08's test subject is assertable for the first time: its two candidates sit at equal depth with fiber-grade default netem on one side and Bluetooth on the other, which is exactly the preference this scenario exists to test, and it takes the fiber parent in four of four runs. Encoded as written rather than calibrated from the runs, since "should pick n03" is the spec and the runs merely confirm it is met. n06 is deliberately absent, and its documented criterion is corrected rather than left standing. The header called n03 a fiber parent for n06; the netem policies in the same file say that link is WiFi and the other candidate is Bluetooth, so n06 chooses between two impaired links. Its only fiber-grade link reaches a node at depth 3 that is never a good parent. There was never a reason to expect it to prefer n03, and the two-of-four split observed is correct behaviour: in a run where it took the Bluetooth peer, the fiber-labelled candidate measured a link cost of 3 against the other's 1, so the daemon chose the cheaper effective depth as it should. Validated by replaying the assertion against all four archived runs, then breaking it three ways to confirm it can fail, then one live run for the wiring. One of the breaks expects n06 to take n03 and reports that it chose n02, which is the direct demonstration of why n06 is not encoded. cost-reeval records that its subject now fires in two runs of three, against zero of five when it was structurally impossible, and why that rate is still not one an assertion can rest on.