pcbjam/tests/kicad/dark-mode.spec.ts
Gergő Törcsvári c666a37f51
tests: dark-mode spec diffs against a per-engine light-mode reference
CI firefox read 0.228 header diff against the Chromium reference while its own
dark and light renders were pixel-identical — pure Firefox-vs-Chromium AA, not
a theme leak. Add the firefox light render as wizard-04-finish-headless-firefox.png
and pick the reference by browserName.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LvvARNMxQrq17vogn3REMU
2026-08-28 23:24:20 +02:00

53 lines
2.5 KiB
TypeScript

import { test, expect } from './fixtures';
import { compareToReference, hideCursor, pcbnewReferenceFor, PCBNEW_HEADER_REGION } from './utils/screenshot-compare';
import { waitForEditorReady, shotPath } from '../e2e/utils/element-tracker';
/**
* Dark-mode regression test.
*
* The wasm/wxUniversal UI always renders a light theme regardless of the
* browser's prefers-color-scheme; KIPLATFORM::UI::IsDarkTheme() must report
* that rendered theme, not the browser preference. When it reported the
* browser preference, a dark-mode browser got dark-variant (light-stroke)
* icons and dark widget colours painted onto the light UI.
*
* This test loads pcbnew with the browser forced to dark mode and asserts the
* header (menubar + top toolbar, where the icons live) renders identically to
* the light-mode reference used by pcbnew.spec.ts.
*/
// colorScheme emulation alone is lost in Firefox on cross-origin-isolated
// pages (the COOP/COEP headers serve.json adds for SharedArrayBuffer put the
// page in an isolated process the override doesn't reach), so also set the
// browser-wide dark-theme pref for the firefox project. launchOptions forces a
// new worker, so this must be top-level rather than inside the describe.
test.use({
colorScheme: 'dark',
launchOptions: { firefoxUserPrefs: { 'ui.systemUsesDarkTheme': 1 } },
});
test.describe('PCBnew dark-mode browser', () => {
test('toolbar icons render the light theme under a dark-mode browser', async ({ page, browserName }) => {
await page.goto('/kicad/pcbnew.html');
// Sanity-check the browser really reports dark mode to the app.
expect(await page.evaluate(() =>
window.matchMedia('(prefers-color-scheme: dark)').matches
)).toBe(true);
await waitForEditorReady(page);
await hideCursor(page);
const cssScreenshot = await page.screenshot({
path: shotPath(page, 'pcbnew-dark-mode-loaded.png'),
scale: 'css'
});
const reference = await compareToReference(page, cssScreenshot, pcbnewReferenceFor(browserName), PCBNEW_HEADER_REGION);
expect(reference.actualWidth).toBe(reference.referenceWidth);
expect(reference.actualHeight).toBe(reference.referenceHeight);
expect(reference.diffRatio, 'header diff ratio vs light-mode reference').toBeLessThan(PCBNEW_HEADER_REGION.maxDiffRatio);
expect(reference.meanChannelDiff, 'header mean channel diff vs light-mode reference').toBeLessThan(PCBNEW_HEADER_REGION.maxMeanChannelDiff);
});
});