From 9191c72a3f41b8a47738665e80a11f6034a04d5f Mon Sep 17 00:00:00 2001
From: Max Schmitt <max@schmitt.mx>
Date: Thu, 9 Mar 2023 16:21:01 +0100
Subject: [PATCH] test: XMLHttpRequest upload events (#21501)

https://github.com/microsoft/playwright/issues/21489
---
 tests/library/capabilities.spec.ts | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/tests/library/capabilities.spec.ts b/tests/library/capabilities.spec.ts
index 5b7fc9b394..ad33e90da1 100644
--- a/tests/library/capabilities.spec.ts
+++ b/tests/library/capabilities.spec.ts
@@ -208,3 +208,23 @@ it('webkit should define window.safari', async ({ page, server, browserName }) =
   const defined = await page.evaluate(() => !!(window as any).safari);
   expect(defined).toBeTruthy();
 });
+
+it('make sure that XMLHttpRequest upload events are emitted correctly', async ({ page, server, browserName, platform }) => {
+  it.info().annotations.push({ type: 'issue', description: 'https://github.com/microsoft/playwright/issues/21489' });
+  it.fixme(browserName === 'webkit' && platform === 'win32');
+
+  await page.goto(server.EMPTY_PAGE);
+  const events = await page.evaluate(async () => {
+    const events: string[] = [];
+    const xhr = new XMLHttpRequest();
+    xhr.upload.addEventListener('loadstart', () => events.push('loadstart'));
+    xhr.upload.addEventListener('progress', () => events.push('progress'));
+    xhr.upload.addEventListener('load', () => events.push('load'));
+    xhr.upload.addEventListener('loadend', () => events.push('loadend'));
+    xhr.open('POST', '/simple.json');
+    xhr.send('hello');
+    await new Promise(f => xhr.onload = f);
+    return events;
+  });
+  expect(events).toEqual(['loadstart', 'progress', 'load', 'loadend']);
+});