1 files changed, 66 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioworklet-interface/audioworklet-messageport.https.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioworklet-interface/audioworklet-messageport.https.html
new file mode 100644
index 0000000000..546bd1d0d0
--- /dev/null
+++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioworklet-interface/audioworklet-messageport.https.html
@@ -0,0 +1,66 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>
+      Test MessagePort in AudioWorkletNode and AudioWorkletProcessor
+    </title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src="/webaudio/resources/audit.js"></script>
+  </head>
+  <body>
+    <script id="layout-test-code">
+      let audit = Audit.createTaskRunner();
+
+      let context = new AudioContext();
+
+      let filePath = 'processors/port-processor.js';
+
+      // Creates an AudioWorkletNode and sets an EventHandler on MessagePort
+      // object. The associated PortProcessor will post a message upon its
+      // construction. Test if the message is received correctly.
+      audit.define(
+          'Test postMessage from AudioWorkletProcessor to AudioWorkletNode',
+          (task, should) => {
+            let porterWorkletNode =
+                new AudioWorkletNode(context, 'port-processor');
+
+            // Upon the creation of PortProcessor, it will post a message to the
+            // node with 'created' status.
+            porterWorkletNode.port.onmessage = (event) => {
+              should(event.data.state,
+                     'The initial message from PortProcessor')
+                  .beEqualTo('created');
+              task.done();
+            };
+          });
+
+      // PortProcessor is supposed to echo the message back to the
+      // AudioWorkletNode.
+      audit.define(
+          'Test postMessage from AudioWorkletNode to AudioWorkletProcessor',
+          (task, should) => {
+            let porterWorkletNode =
+                new AudioWorkletNode(context, 'port-processor');
+
+            porterWorkletNode.port.onmessage = (event) => {
+              // Ignore if the delivered message has |state|. This is already
+              // tested in the previous task.
+              if (event.data.state)
+                return;
+
+              should(event.data.message,
+                     'The response from PortProcessor')
+                  .beEqualTo('hello');
+              task.done();
+            };
+
+            porterWorkletNode.port.postMessage('hello');
+          });
+
+      context.audioWorklet.addModule(filePath).then(() => {
+        audit.run();
+      });
+    </script>
+  </body>
+</html>