jheapsandClaude Opus 5
c052ee32c8
Opened the pot wizard — the one dialog in this tool that divides money — and its Confirm button was below a scroll. Not on a tall table, not on one screen: at every size I measured, with six players and a side pot. iPhone 14 390x844 244px of the dialog below the fold Galaxy S8 360x640 417px 844x390 landscape 583px desktop 1280x900 172px Nothing on screen said there was anything under the list of names, so a dealer with the table waiting had to scroll a list of players to find the only control that finishes the hand. Two goes at this, and the first was wrong. A sticky footer is the obvious answer and it cannot work here: the actions were the last child of the scrolling content, so their containing block ended exactly where they did and `bottom` had no room to lift them. Sticky on the *header* did work, for the mirror-image reason — its container extends below it — which is what made the failure confusing to read. Capping the player list wasn't enough either; the pot breakdown and the log still overflowed on a short screen. So the dialog is a proper column now: a title that doesn't move, a body that scrolls, and a footer outside the scroll. potWizard.js appends its buttons to the footer instead of into the body, and clears both together so a step can't inherit the previous step's buttons. Measured after: Confirm on screen and hit-testable at all six configurations, twelve-handed on a Galaxy S8 included, and the dialog itself no longer scrolls at all. The checkboxes are painted now, too. `accent-color` only ever coloured the tick — the box around it stayed the platform's own bright white square, which on a near-black dialog was the loudest thing on screen and the last raw control in a tool where everything else had been drawn. Same surface ramp, same corner radius, and a tick drawn with clip-path so it can't pick up a substituted font. uiAudit gains "an open dialog's buttons are on screen", which hit-tests rather than trusting geometry — a button can be inside the viewport and still be under something. Fault-injected: putting the footer back inside the scrolling body reports Confirm 105px below the fold. Two things checked and left alone, because they turned out to be right: the standings table hides three columns on narrow screens through a container query keyed to the sidebar rather than the viewport, which is why a desktop shows fewer columns than an iPad — the sidebar is the narrower box there. And In/Won/ Net read $0 for hands settled outside the wizard, which the comment above them already explains. Caught by my own guard on the way past: the token test read `scroll-padding` as `padding` and failed the spacing scale. Correct by its rules, wrong in substance — those values are a sticky bar's measured height, not a step in the rhythm — so the lookbehind now rejects a hyphen as well as a word character. Re-fault- injected to confirm it still catches a real ad-hoc gap. 619 tests, 0 failures. 65 layout audits across 13 viewports x 5 table sizes and 35 across the five overlays. The whole wizard walked end to end: side pot resolved, hand logged, $1,560 on the table before and after. Co-Authored-By: Claude Opus 5 <[email protected]> Claude-Session: https://claude.ai/code/session_015bnp7xKUPFFSpwkYNFaPgb
Hold'em dealer tests
Unit tests for the money logic behind /Casino/TexasHoldem — the betting engine, the
side-pot calculator, the split calculator and the table state.
node --test tests/holdem/*.test.js
No install step, no package.json, no dependencies. The browser modules are plain
script-tag files that each end with a module.exports guard, so Node can require them
as-is; load.js puts them on globalThis under the same names they use to find each
other in the page, in the load order from TexasHoldem.cshtml.
What's covered
| File | Covers |
|---|---|
potCalculator.test.js |
Main and side pots, dead money, uncalled bets, odd-cent distribution |
betting.test.js |
Blinds, street completion, raises reopening the action, all-in run-outs |
state.test.js |
Button rotation, which seats post blinds, session standings |
splitCalculator.test.js |
Chopped pots, odd chips, unmakeable denominations |
invariants.test.js |
1000 randomised hands per property (see below) |
The layout audit
The unit tests above cover the money. uiAudit.js covers the thing you can only see
in a browser: whether a dealer can actually reach every control.
node tests/holdem/runUiAudit.js # needs Playwright and the site running
It checks WCAG AA contrast, touch target sizes, touch-action and tap highlights, that fields stay selectable and are large enough not to trigger iOS zoom, that nothing important is covered or off-screen with no way to scroll to it, that no grid column has collapsed to nothing, and that no text is painted outside its box. It runs over the table, all five overlays and Quick Split, at thirteen viewports from a 360px phone to a 1600px desktop and the same phones on their side — each viewport twice, once with a mouse and once with a thumb.
That last part, and two of those checks, are newer than this paragraph claiming them.
runAll() did not include the contrast check at all, and touch targets sat behind an
opt-in flag nothing passed, so "the audit is clean" meant nine checks rather than
eleven for a long run of rounds. Both were written and tested and simply never called.
The mouse/thumb pair matters for the same reason: the 44px rule stands itself down
where hover: hover says there is a pointer, and a headless desktop browser is a
pointer, so a single pass had never measured a touch target at any viewport. Between
them they found a 9px seat label at 3.39:1, a 37px-tall amount field and a 30px delete
button on Quick Split.
A check that decides it doesn't apply says so in the output rather than reporting no offenders, which reads identically to a pass. The same goes for the two exemptions that exist: a disabled control, which WCAG itself excuses, and a link inside a sentence, whose size is set by the line it sits in.
Deliberately not in CI: the unit suite is dependency-free and runs in a second, while
this one needs a browser and a running site. Run it after any change that adds or
resizes a control. With no Playwright to hand, paste uiAudit.js into devtools and
call LayoutAudit.runAll().
The contrast check is built so it cannot report a false positive: backgrounds
composite through alpha, and where a gradient is involved every colour stop is tried
and the most flattering one used. A finding means the text fails even under the
reading most generous to it. Two earlier attempts at this got it wrong in both
directions — one read only background-color and scored text on a gradient against
nothing, the other treated low-alpha stops as opaque — so uiAudit.js is checked
against known-answer cases before it is believed.
Touch targets are measured by probing outward with elementFromPoint rather than by
reading the element box, because the box lies in both directions: a small control can
be padded out with a transparent ::after and respond well beyond its painted size,
and a checkbox inside a label is hit by tapping the label. The 44px rule is only
enforced where hover: none says there's no mouse.
It exists because these checks were being re-typed into a console every time something changed, and each time they only covered whatever had just been touched. That is how the standings table shipped with a player-name column zero pixels wide and kept it for two rounds.
Why the randomised suite exists
Every correctness bug found in this tool so far has been shape-dependent: blinds posted to empty chairs, the button skipping past players, heads-up acting out of order, an overbet announced as a side pot. None of them show up on a full six-handed table with equal stacks, which is the table anyone writes a fixed example for.
invariants.test.js deals a thousand hands across random seat counts, random empty
chairs, random stack depths and random dealer input, and checks the things a dealer
would notice being wrong:
- chips are never created or destroyed during play
- the pot breakdown plus the uncalled returns always equal the money that went in
- paying the pot out settles it to the cent
- once uncalled chips are handed back, nobody is still betting above the whole table
- the button and both blinds always land on players who are actually in the hand
The generator is seeded, so a failure reproduces from the seed printed in the message rather than being a flake to re-run.