The floors step piped scripts/mutation-floors.mjs into tee without
pipefail, so it took tee's exit status and a module under its floor could
never fail the run. It now runs under bash with pipefail, as do the other
steps that pipe into tee, and a guard reads every workflow and fails on a
tee pipe without it. The other piped steps were checked: each either
validates what the pipe produced or pipes a command that cannot fail.
The nightly runs set FC_NUM_RUNS, an absolute count that replaced every
property's own: the database backup round trip, which states twelve cases
for its cost, ran a hundred times against a timeout sized for twelve.
FC_RUNS_FACTOR now multiplies each property's count (five for the unit
suite, four for integration), propertyTimeout grows a test's timeout by
the same factor, and the backup round trip uses it.
fast-check properties with one shared configuration (tests/property/): a
fixed seed on every pull request, a fresh one and more cases at night through
FC_SEED and FC_NUM_RUNS, and a printed seed with the shrunk counterexample on
failure.
- Time zones: wall clocks agree with Intl in twenty awkward zones, a wall
clock maps back to an instant showing it, a skipped hour resolves forward
on the same day, every instant lies inside the window of the day it is
filed under, and day keys shift and count as inverses.
- Statistics: every median in the tree says the same number, medians and
spreads obey order, shift and scale, a least-squares fit recovers an exact
line and composes from stored sums exactly, and the segmented regression
recovers a noiseless interrupted line.
- Cadence and compliance: weekly and daily schedules expect exactly what a
day-by-day oracle expects, in any zone and on transition days, and the
rate stays within bounds and never falls when a missed dose is taken.
- Encryption: every codec opens what it sealed under the key it names,
rotation moves the key id and nothing else, and a tampered value never
opens to anything but the sealed bytes.
- Backups: randomly generated accounts come back from a disaster-recovery
restore with an identical canonical dump of every generated table.
Marc-André Bombeck