|
| 1 | +const puppeteer = require('puppeteer') |
| 2 | +;(async () => { |
| 3 | + const browser = await puppeteer.launch({ headless: true }) |
| 4 | + const page = await browser.newPage() |
| 5 | + |
| 6 | + // Define a window.onCustomEvent function on the page. |
| 7 | + page.on('console', msg => console.log(msg.text())) |
| 8 | + |
| 9 | + await page.exposeFunction('onCustomEvent', e => { |
| 10 | + console.log(`${e.type} fired`, e.detail || '') |
| 11 | + }) |
| 12 | + |
| 13 | + /** |
| 14 | + * Attach an event listener to page to capture a custom event on page load/navigation. |
| 15 | + * @param {string} type Event name. |
| 16 | + * @return {!Promise} |
| 17 | + */ |
| 18 | + function listenFor(type) { |
| 19 | + return page.evaluateOnNewDocument(type => { |
| 20 | + document.addEventListener(type, e => { |
| 21 | + window.onCustomEvent({ type, detail: e.detail }) |
| 22 | + }) |
| 23 | + }, type) |
| 24 | + } |
| 25 | + |
| 26 | + await listenFor('app-ready') // Listen for "app-ready" custom event on page load. |
| 27 | + |
| 28 | + await page.goto('http://localhost:5000/test/', { |
| 29 | + waitUntil: 'networkidle2' |
| 30 | + }) |
| 31 | + |
| 32 | + await page.type('#input', '0123') |
| 33 | + await page.keyboard.press('ArrowLeft') |
| 34 | + await page.keyboard.press('ArrowLeft') |
| 35 | + await page.keyboard.press('Backspace') |
| 36 | + await page.keyboard.press('Backspace') |
| 37 | + await page.type('#input', '98') |
| 38 | + await page.$eval('#input', input => |
| 39 | + console.log(input.value, input.selectionEnd) |
| 40 | + ) |
| 41 | + await browser.close() |
| 42 | +})() |
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