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diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-mediastreamaudiosourcenode-interface/mediastreamaudiosourcenode-ctor.html b/testing/web-platform/tests/webaudio/the-audio-api/the-mediastreamaudiosourcenode-interface/mediastreamaudiosourcenode-ctor.html
new file mode 100644
index 0000000000..a711419656
--- /dev/null
+++ b/testing/web-platform/tests/webaudio/the-audio-api/the-mediastreamaudiosourcenode-interface/mediastreamaudiosourcenode-ctor.html
@@ -0,0 +1,73 @@
+<!DOCTYPE html>
+
+<html class="a">
+  <head>
+    <title>MediaStreamAudioSourceNode</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+  </head>
+  <body class="a">
+    <div id="log"></div>
+    <script>
+      setup({explicit_done: true});
+      // Wait until the DOM is ready to be able to get a reference to the canvas
+      // element.
+      window.addEventListener("load", function() {
+        const ac = new AudioContext();
+        const emptyStream = new MediaStream();
+
+        test(function() {
+          assert_throws_dom(
+            "InvalidStateError",
+            function() {
+              ac.createMediaStreamSource(emptyStream);
+            },
+            `A MediaStreamAudioSourceNode can only be constructed via the factory
+    method with a MediaStream that has at least one track of kind "audio"`
+          );
+        }, "MediaStreamAudioSourceNode created with factory method and MediaStream with no tracks");
+
+        test(function() {
+          assert_throws_dom(
+            "InvalidStateError",
+            function() {
+              new MediaStreamAudioSourceNode(ac, { mediaStream: emptyStream });
+            },
+            `A MediaStreamAudioSourceNode can only be constructed via the constructor
+          with a MediaStream that has at least one track of kind "audio"`
+          );
+        }, "MediaStreamAudioSourceNode created with constructor and MediaStream with no tracks");
+
+        const canvas = document.querySelector("canvas");
+        const ctx = canvas.getContext("2d");
+        const videoOnlyStream = canvas.captureStream();
+
+        test(function() {
+          assert_throws_dom(
+            "InvalidStateError",
+            function() {
+              ac.createMediaStreamSource(videoOnlyStream);
+            },
+            `A MediaStreamAudioSourceNode can only be constructed via the factory with a
+          MediaStream that has at least one track of kind "audio"`
+          );
+        }, `MediaStreamAudioSourceNode created with the factory method and MediaStream with only a video track`);
+
+        test(function() {
+          assert_throws_dom(
+            "InvalidStateError",
+            function() {
+              new MediaStreamAudioSourceNode(ac, {
+                mediaStream: videoOnlyStream,
+              });
+            },
+            `A MediaStreamAudioSourceNode can only be constructed via the factory with a
+          MediaStream that has at least one track of kind "audio"`
+          );
+        }, `MediaStreamAudioSourceNode created with constructor and MediaStream with only a video track`);
+        done();
+      });
+    </script>
+  </body>
+  <canvas></canvas>
+</html>