Reuse dom-testing-library in same execution context

bench/index.js

@@ -0,0 +1,70 @@
+const path = require('path')
+const Benchmark = require('benchmark')
+const puppeteer = require('puppeteer')
+const {queries: baseQueries, getDocument} = require('pptr-testing-library')
+const {queries: latestQueries} = require('../')
+
+const suite = new Benchmark.Suite('pptr-testing-library')
+
+async function main() {
+  const browser = await puppeteer.launch()
+  const page = await browser.newPage()
+  await page.goto(
+    `file://${path.join(__dirname, '..', 'test/fixtures/page.html')}`
+  )
+  const document = await getDocument(page)
+
+  // add tests
+  suite
+    .add({
+      name: 'base',
+      defer: true,
+      fn(deferred) {
+        baseQueries.getByAltText(document, 'Image A').then(result => {
+          if (result) {
+            deferred.resolve()
+          } else {
+            throw new Error('Image not found.')
+          }
+        })
+      },
+    })
+    .add({
+      name: 'latest',
+      defer: true,
+      fn(deferred) {
+        latestQueries.getByAltText(document, 'Image A').then(result => {
+          if (result) {
+            deferred.resolve()
+          } else {
+            throw new Error('Image not found.')
+          }
+        })
+      },
+    })
+    .add({
+      name: 'querySelector',
+      defer: true,
+      fn(deferred) {
+        page.$('img[alt="Image A"]').then(result => {
+          if (result) {
+            deferred.resolve()
+          } else {
+            throw new Error('Image not found.')
+          }
+        })
+      },
+    })
+    // add listeners
+    .on('cycle', event => {
+      console.log(String(event.target))
+    })
+    .on('complete', function () {
+      console.log('Fastest is ' + this.filter('fastest').map('name'))
+      browser.close()
+    })
+    // run async
+    .run({async: true})
+}
+
+main()