diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/pager-swipe-fly-test.js | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/pager-swipe-fly-test.js b/tools/pager-swipe-fly-test.js index cae3536..418b8e4 100644 --- a/tools/pager-swipe-fly-test.js +++ b/tools/pager-swipe-fly-test.js @@ -108,11 +108,13 @@ try { console.log('\n[a fast flick: several posts, landing snapped]'); const trace = async (sw) => { await page.evaluate(() => { const sc = document.querySelector('.mp-scroll'); window.__tr = []; const t0 = performance.now(); const rec = () => { window.__tr.push(sc.scrollTop); if (performance.now() - t0 < 1500) requestAnimationFrame(rec); }; requestAnimationFrame(rec); }); await sw(); await sleep(1600); return page.evaluate(() => window.__tr); }; + await page.evaluate(() => { const el = document.querySelector('.mp-position'); window.__counts = [el.textContent]; new MutationObserver(() => { if (window.__counts.at(-1) !== el.textContent) window.__counts.push(el.textContent); }).observe(el, { childList: true, characterData: true, subtree: true }); }); const tr = await trace(() => swipe(600, 80, 3)); await settled(); // three big moves: 3–6 px/ms as their handling takes, a long coast's worth (past the nine loaded, maybe) const landed = await at(); check('a 600px flick in a few frames flies several posts on', landed !== 'between' && landed >= 5, String(landed)); check('…landing square on a post', landed !== 'between'); check('…in a glide, never back', tr.every((x, i) => !i || x >= tr[i - 1] - 0.5), tr.slice(0, 12).map((x) => Math.round(x)).join(' ')); + check('the counter ran through the posts on the way, not jumping on landing', (await page.evaluate(() => window.__counts)).length >= 4, (await page.evaluate(() => window.__counts)).join(' → ')); const seen = await page.evaluate(() => document.querySelector('.mp-position').textContent); check('the counter says where it landed', seen === landed + ' / ' + N, seen); |