Failing WPT test to initialize MSTG in shared worker

Bug: none Change-Id: I363b78065cb717d51a7399d3981669dde6228f04 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3398330 Reviewed-by: Tony Herre <toprice@chromium.org> Commit-Queue: Palak Agarwal <agpalak@chromium.org> Cr-Commit-Position: refs/heads/main@{#960327}
web-platform-tests · Jan 18, 2022 · 73b6d6c · 73b6d6c
1 parent 1673e2e
commit 73b6d6c
Show file tree

Hide file tree

Showing 2 changed files with 33 additions and 0 deletions.
diff --git a/mediacapture-insertable-streams/MediaStreamTrackGenerator-in-shared-worker.https.html b/mediacapture-insertable-streams/MediaStreamTrackGenerator-in-shared-worker.https.html
@@ -0,0 +1,22 @@
+<!doctype html>
+<title>Test initialize MediaStreamTrackGenerator in a shared worker</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script>
+'use strict';
+
+promise_test(async t => {
+    const worker = new SharedWorker('shared-worker.js');
+    const result = new Promise((resolve, reject) => {
+        worker.port.onmessage = (e) => {
+            if (e.data.result === 'Failure') {
+                reject('Failed with error ' + e.data.error);
+            } else {
+                resolve();
+            }
+        };
+    });
+    worker.port.postMessage('Hello world');
+    return result;
+}, 'A shared worker is able to initialize a MediaStreamTrackGenerator without crashing');
+</script>
diff --git a/mediacapture-insertable-streams/shared-worker.js b/mediacapture-insertable-streams/shared-worker.js
@@ -0,0 +1,11 @@
+onconnect = (e) => {
+    const port = e.ports[0];
+    port.onmessage = (e) => {
+      try {
+        const generator = new MediaStreamTrackGenerator({kind: 'video'});
+        port.postMessage({result: 'Success'});
+      } catch (e) {
+        port.postMessage({result: 'Failure', error: e});
+      }
+    }
+}