Found by walking into it. test_step_canvas_annotation_layer.gd had a parse
error from an earlier edit in this session, so gdUnit4 could not load it and
ran the other suites instead. The harness printed 3610 passed / 0 failed and
exit 0. Fifty tests had not run for hours and nothing said so — the full
suite reports 3660 with the file repaired, and that difference was invisible.
Two states are now hard harness failures rather than test results:
load_error — a suite failed to LOAD. Any pass count excludes it, so a green
number is a lie. The hint names the offending file.
no_tests — zero tests executed. A run that executes nothing can never be
a pass; previously a mistyped --filter printed "Tests passed".
Both add a "harness_error" field to the summary JSON and exit 2. The exit
code cannot inherit gdUnit4's, which returns 0 in both states — that is
precisely why they were invisible.
Verified by injecting each failure rather than by reasoning about it. The
load_error guard was checked in the case that actually matters: one broken
file among many, where total stays large and failed stays zero. That run now
reports 3610/0 WITH harness_error and exits 2, where before it was
indistinguishable from success.
Also repairs the file itself: a missed set_frame() argument (the parse error),
and a cell-placement test still asserting pre-inversion spacing. Rewritten to
assert the invariant that survives the extent inversion, the viewport aspect
ratio and panning — half the SHORT axis is half a rung cell — instead of a
literal. Two things it deliberately does not assert, both of which the
previous version got wrong: "the corner is half a district away" holds only
on a square canvas, and the canvas is one district WIDE without sitting ON a
district. It is a free-floating window centred wherever the player panned;
zoom is stepped, pan is continuous. A rung names a scale, not a cell you are
inside. A second test pins that with a deliberately unaligned world centre,
so a future change that snaps the canvas to the rung lattice — making pan
step instead of slide — fails here.
Pair session with Jeroen, 2026-07-27.
Co-Authored-By: Claude <noreply@anthropic.com>
jpmschweitzerandClaude
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