4697bbddd881c72cccb85b9ff0aacd769396b9d0
braney
  Thu Sep 10 07:34:35 2026 -0700
docent: record what evidence each regression test has, and count it

A regression test written after the fix asserts the right answer, but nobody
has watched it fail for the reason it exists, and a loose assertion in that
state is indistinguishable from no test at all. Four of the 37 scripts here
have actually been watched to flip. That was recorded only as prose in each
script's header, so answering "how many of these are real regression tests"
meant a grep and a read, and the number could not be quoted.

Every script now carries a top-level `proof:` key, one quoted line per piece
of evidence, `<level> <YYYY-MM-DD> -- <what was seen>`. docent.js reads only
the keys it names off the parsed document, so this costs a run nothing.

tests/proof.js reads them and tallies, wired up as `make proof` in the shared
docentTest.mk. It exits 1 on a malformed line, an unknown level, or a line
left unquoted -- that last one because nearly every note names a ticket and a
bare # in an unquoted YAML scalar silently truncates the sentence at the
ticket number, which is how the first pass of this change lost half its text.

The levels, weakest first: assertion-only, xfail, sandbox-ab, server-flip,
caught-regression. Today that reads 31 / 2 / 0 / 3 / 1.

nightly.sh now records the flips it finds. An xfail that PASSES is the best
evidence this suite produces -- the same server, the same fixtures, the same
script, one real build apart -- and until now it arrived as a red mail and was
thrown away with the log 60 days later. It is appended to
/hive/users/braney/docentNightly/flips.log, one line per script ever, outside
the checkout because --update resets the tree. The mail says what to do with
it. The three flips that already happened (rm38272 2026-09-06, rm36212
2026-09-09, rm38310 2026-09-10) were recovered from the old logs and seeded
there by hand.

Full suite run after the change: 37 scripts, all ok. refs #38252

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

diff --git src/hg/utils/docent/tests/regress/rm38126.docent.yaml src/hg/utils/docent/tests/regress/rm38126.docent.yaml
index fe655b92ff6..b7984b27003 100644
--- src/hg/utils/docent/tests/regress/rm38126.docent.yaml
+++ src/hg/utils/docent/tests/regress/rm38126.docent.yaml
@@ -26,30 +26,33 @@
 # 2026-09-06 hgwbeta still printed the description raw, and the same page was read on both:
 #
 #                                     genome-test   hgwbeta
 #     id="descPage-hubDescProbe"      present       absent
 #     id="hubDescProbe"               absent        present
 #     id="hubDescProbeScript"         absent        present
 #     name="hubDescProbeInput"        absent        present
 #
 # The two text checks are the companion half and do NOT flip: they hold on both servers,
 # and they are here so the run cannot pass on a page where the description simply failed to
 # load. A filter that removed everything would satisfy every noHas: on its own.
 #
 # has:/noHas: rather than text:, because a <script> element's contents are not in
 # innerText on either build. A noText: on the script body would have passed everywhere and
 # asserted nothing. This is the case those two checks exist for.
+proof:
+  - "assertion-only 2026-09-06 -- written from the ticket after the fix had shipped"
+
 target: genome-test
 db: hg38
 position: chr1:10537500-10538000
 reset: true
 fast: true
 steps:
   # uc.1, the first item in the fixture's bigBed, so the row below is evidence the hub
   # really loaded rather than evidence that a link exists.
   - hub: {url: "https://hgwdev.gi.ucsc.edu/~braney/docentFixtures/descFilterHub/hub.txt", db: hg38, position: chr1:10537500-10538000}
   - expect: {rows: [descFilterProbe], noText: "Warning/Error"}
 
   # The track's own settings page, which is where printTrackHtml puts the description.
   - click: 'a[href*="hgTrackUi"][href*="descFilterProbe"]'
 
   - expect: