webrtc wpt: add WPT for RTCSessionDescription.toJSON

BUG=chromium:1385266 Change-Id: Ie8925e208c5e23f6f48403c85fa3b8d0b30098de Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4031748 Commit-Queue: Philipp Hancke <phancke@microsoft.com> Reviewed-by: Harald Alvestrand <hta@chromium.org> Cr-Commit-Position: refs/heads/main@{#1078154}
web-platform-tests · Jan 5, 2024 · 1305896 · 1305896
1 parent 28beda6
commit 1305896
Showing 1 changed file with 21 additions and 1 deletion.
diff --git a/webrtc/toJSON.html b/webrtc/toJSON.html
@@ -1,9 +1,29 @@
 <!doctype html>
-<title>WebRTC objects toJSON()</title>
+<title>WebRTC objects toJSON() methods</title>
 <script src=/resources/testharness.js></script>
 <script src=/resources/testharnessreport.js></script>
 <script>
 'use strict';
+// The tests for
+// * RTCSessionDescription.toJSON()
+// * RTCIceCandidate.toJSON()
+// are kept in a single file since they are similar and typically
+// would need to be changed together.
+test(t => {
+  const desc = new RTCSessionDescription({
+    type: 'offer',
+    sdp: 'bogus sdp',
+  });
+  const json = desc.toJSON();
+
+  // Assert that candidates which should be serialized are present.
+  assert_equals(json.type, desc.type);
+  assert_equals(json.sdp, desc.sdp);
+
+  // Assert that no other attributes are present by checking the size.
+  assert_equals(Object.keys(json).length, 2);
+
+}, 'RTCSessionDescription.toJSON serializes only specific attributes');
 
 test(t => {
   const candidate = new RTCIceCandidate({