From bb0af314ba36ba2db236ef3a815b362d0f567075 Mon Sep 17 00:00:00 2001
From: Yury Semikhatsky <yurys@chromium.org>
Date: Mon, 8 Feb 2021 10:59:48 -0800
Subject: [PATCH] fix(video): set default size to fit into 800x800 (#5333)

---
 src/server/browserContext.ts | 14 ++++++++++++++
 test/screencast.spec.ts      | 36 +++++++++++++++++++++++++++++-------
 2 files changed, 43 insertions(+), 7 deletions(-)

diff --git a/src/server/browserContext.ts b/src/server/browserContext.ts
index 4e9e8e77a90a7..5d6201ea4a2c8 100644
--- a/src/server/browserContext.ts
+++ b/src/server/browserContext.ts
@@ -414,6 +414,20 @@ export function validateBrowserContextOptions(options: types.BrowserContextOptio
     throw new Error(`"isMobile" option is not supported with null "viewport"`);
   if (!options.viewport && !options.noDefaultViewport)
     options.viewport = { width: 1280, height: 720 };
+  if (options.recordVideo && !options.recordVideo.size) {
+    if (options.noDefaultViewport) {
+      options.recordVideo.size = { width: 800, height: 600 };
+    } else {
+      const size = options.viewport!;
+      const scale = 800 / Math.max(size.width, size.height);
+      if (scale < 1) {
+        options.recordVideo.size = {
+          width: Math.floor(size.width * scale),
+          height: Math.floor(size.height * scale)
+        };
+      }
+    }
+  }
   if (options.proxy) {
     if (!browserOptions.proxy)
       throw new Error(`Browser needs to be launched with the global proxy. If all contexts override the proxy, global proxy will be never used and can be any string, for example "launch({ proxy: { server: 'per-context' } })"`);
diff --git a/test/screencast.spec.ts b/test/screencast.spec.ts
index 501ed5022403f..73cf4e0c9d1b0 100644
--- a/test/screencast.spec.ts
+++ b/test/screencast.spec.ts
@@ -45,6 +45,8 @@ export class VideoPlayer {
 
     const lines = this.output.split('\n');
     let framesLine = lines.find(l => l.startsWith('frame='))!;
+    if (!framesLine)
+      throw new Error(`No frame data in the output:\n${this.output}`);
     framesLine = framesLine.substring(framesLine.lastIndexOf('frame='));
     const framesMatch = framesLine.match(/frame=\s+(\d+)/);
     const streamLine = lines.find(l => l.trim().startsWith('Stream #0:0'));
@@ -398,8 +400,8 @@ describe('screencast', suite => {
     }
   });
 
-  it('should use viewport as default size', async ({browser, testInfo}) => {
-    const size = {width: 800, height: 600};
+  it('should use viewport scaled down to fit into 800x800 as default size', async ({browser, testInfo}) => {
+    const size = {width: 1600, height: 1200};
     const context = await browser.newContext({
       recordVideo: {
         dir: testInfo.outputPath(''),
@@ -413,11 +415,11 @@ describe('screencast', suite => {
 
     const videoFile = await page.video().path();
     const videoPlayer = new VideoPlayer(videoFile);
-    expect(videoPlayer.videoWidth).toBe(size.width);
-    expect(videoPlayer.videoHeight).toBe(size.height);
+    expect(videoPlayer.videoWidth).toBe(800);
+    expect(videoPlayer.videoHeight).toBe(600);
   });
 
-  it('should be 1280x720 by default', async ({browser, testInfo}) => {
+  it('should be 800x450 by default', async ({browser, testInfo}) => {
     const context = await browser.newContext({
       recordVideo: {
         dir: testInfo.outputPath(''),
@@ -430,8 +432,28 @@ describe('screencast', suite => {
 
     const videoFile = await page.video().path();
     const videoPlayer = new VideoPlayer(videoFile);
-    expect(videoPlayer.videoWidth).toBe(1280);
-    expect(videoPlayer.videoHeight).toBe(720);
+    expect(videoPlayer.videoWidth).toBe(800);
+    expect(videoPlayer.videoHeight).toBe(450);
+  });
+
+  it('should be 800x600 with null viewport', (test, { headful, browserName }) => {
+    test.fixme(browserName === 'firefox' && !headful, 'Fails in headless on bots');
+  }, async ({ browser, testInfo }) => {
+    const context = await browser.newContext({
+      recordVideo: {
+        dir: testInfo.outputPath(''),
+      },
+      viewport: null
+    });
+
+    const page = await context.newPage();
+    await new Promise(r => setTimeout(r, 1000));
+    await context.close();
+
+    const videoFile = await page.video().path();
+    const videoPlayer = new VideoPlayer(videoFile);
+    expect(videoPlayer.videoWidth).toBe(800);
+    expect(videoPlayer.videoHeight).toBe(600);
   });
 
   it('should capture static page in persistent context', async ({launchPersistent, testInfo}) => {