1 files changed, 16 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioworklet-interface/processors/construction-port-singleton.js b/testing/web-platform/tests/webaudio/the-audio-api/the-audioworklet-interface/processors/construction-port-singleton.js
new file mode 100644
index 0000000000..c40b5a7179
--- /dev/null
+++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audioworklet-interface/processors/construction-port-singleton.js
@@ -0,0 +1,16 @@
+let singleton;
+class Singleton extends AudioWorkletProcessor {
+  constructor() {
+    if (!singleton) {
+      singleton = new AudioWorkletProcessor();
+      singleton.process = function() {
+        this.port.postMessage({message: "process called"});
+        // This function will be called at most once for each AudioWorkletNode
+        // if the node has no input connections.
+        return false;
+      }
+    }
+    return singleton;
+  }
+}
+registerProcessor("singleton", Singleton);