v1.1.0: pooled runtime, 959 tests, production hardening (0 squash)

2025-08-15 10:00:00 -07:00
commit 92deb689cd
321 changed files with 79170 additions and 0 deletions
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+import { performance } from 'node:perf_hooks'
+import { chromium } from 'playwright'
+import { imhotep } from 'imhotep'
+import { mkdtempSync, writeFileSync, rmSync } from 'node:fs'
+import { tmpdir } from 'node:os'
+import { join } from 'node:path'
+
+const tmpdir2 = mkdtempSync(join(tmpdir(), 'imhotep-cache-hit-'))
+const html = `
+<!DOCTYPE html>
+<html><body>
+<div id="container">
+  ${Array.from({length: 50}, (_, i) => `<div class="item" data-testid="item-${i}" style="position:absolute;left:${(i % 10) * 60}px;top:${Math.floor(i / 10) * 60}px;width:50px;height:50px;background:#ccc;">${i}</div>
+  `).join('')}
+</div>
+</body></html>
+`
+writeFileSync(join(tmpdir2, 'page.html'), html)
+
+const browser = await chromium.launch()
+const page = await browser.newPage()
+await page.goto(`file:${join(tmpdir2, 'page.html')}`)
+
+const selectors = Array.from({length: 50}, (_, i) => `[data-testid="item-${i}"]`)
+
+// Warmup: run once to populate cache
+const ui1 = await imhotep(page)
+for (const sel of selectors) {
+  ui1.expect(sel).to.be.leftOf('[data-testid="item-0"]')
+}
+await ui1.checkAll()
+
+console.log('=== Cache Hit Performance ===\n')
+
+for (const count of [1, 5, 10, 25, 50]) {
+  const ui = await imhotep(page)
+  for (let i = 0; i < count; i++) {
+    ui.expect(selectors[i]).to.be.leftOf('[data-testid="item-0"]')
+  }
+  
+  const times = []
+  for (let run = 0; run < 10; run++) {
+    const start = performance.now()
+    await ui.checkAll()
+    times.push(performance.now() - start)
+  }
+  const mean = times.reduce((a,b) => a+b, 0) / times.length
+  console.log(`${count} selectors (cache hit): ${mean.toFixed(2)}ms (avg of 10 runs)`)
+}
+
+await browser.close()
+rmSync(tmpdir2, { recursive: true, force: true })