test MessagePort while AudioContext is not running
Depends on D65072
Differential Revision: https://phabricator.services.mozilla.com/D65073
bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=1596655
gecko-commit: 50e12683407166297882386eba9a34afec3109f8
gecko-integration-branch: autoland
gecko-reviewers: padenot
diff --git a/webaudio/the-audio-api/the-audioworklet-interface/suspended-context-messageport.https.html b/webaudio/the-audio-api/the-audioworklet-interface/suspended-context-messageport.https.html
new file mode 100644
index 0000000..5f5b10a
--- /dev/null
+++ b/webaudio/the-audio-api/the-audioworklet-interface/suspended-context-messageport.https.html
@@ -0,0 +1,51 @@
+<!doctype html>
+<title>Test MessagePort while AudioContext is not running</title>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script>
+const get_node_and_message = async (context) => {
+ const node = new AudioWorkletNode(context, 'port-processor');
+ return new Promise((resolve) => {
+ node.port.onmessage = (event) => resolve({node: node, event: event});
+ });
+};
+const ping_for_message = async (node) => {
+ return new Promise((resolve) => {
+ node.port.onmessage = resolve;
+ node.port.postMessage('ping');
+ });
+};
+const modulePath = 'processors/port-processor.js';
+
+promise_test(async () => {
+ const realtime = new AudioContext();
+ await realtime.audioWorklet.addModule(modulePath);
+ await realtime.suspend();
+ const currentTime = realtime.currentTime;
+ let {node, event} = await get_node_and_message(realtime);
+ assert_equals(event.data.timeStamp, currentTime, 'created message time');
+ event = await ping_for_message(node);
+ assert_equals(event.data.timeStamp, currentTime, 'pong time');
+}, 'realtime suspended');
+
+let offline;
+promise_test(async () => {
+ offline = new OfflineAudioContext({length: 128 + 1, sampleRate: 16384});
+ await offline.audioWorklet.addModule(modulePath);
+ assert_equals(offline.currentTime, 0, 'time before start');
+ let {node, event} = await get_node_and_message(offline);
+ assert_equals(event.data.timeStamp, 0, 'created time before start');
+ event = await ping_for_message(node);
+ assert_equals(event.data.timeStamp, 0, 'pong time before start');
+}, 'offline before start');
+
+promise_test(async () => {
+ await offline.startRendering();
+ const expected = 2 * 128 / offline.sampleRate;
+ assert_equals(offline.currentTime, expected, 'time on complete');
+ let {node, event} = await get_node_and_message(offline);
+ assert_equals(event.data.timeStamp, expected, "created time on complete");
+ event = await ping_for_message(node);
+ assert_equals(event.data.timeStamp, expected, "pong time on complete");
+}, 'offline on complete');
+</script>
