1 files changed, 32 insertions, 0 deletions
diff --git a/dom/media/webrtc/tests/mochitests/peerconnection_audio_forced_sample_rate.js b/dom/media/webrtc/tests/mochitests/peerconnection_audio_forced_sample_rate.js
new file mode 100644
index 0000000000..d0c647be0d
--- /dev/null
+++ b/dom/media/webrtc/tests/mochitests/peerconnection_audio_forced_sample_rate.js
@@ -0,0 +1,32 @@
+// This function takes a sample-rate, and tests that audio flows correctly when
+// the sampling-rate at which the MTG runs is not one of the sampling-rates that
+// the MediaPipeline can work with.
+// It is in a separate file because we have an MTG per document, and we want to
+// test multiple sample-rates, so we include it in multiple HTML mochitest
+// files.
+async function test_peerconnection_audio_forced_sample_rate(forcedSampleRate) {
+  await scriptsReady;
+  await pushPrefs(["media.cubeb.force_sample_rate", forcedSampleRate]);
+  await runNetworkTest(function (options) {
+    const test = new PeerConnectionTest(options);
+    const ac = new AudioContext();
+    test.setMediaConstraints([{ audio: true }], []);
+    test.chain.replace("PC_LOCAL_GUM", [
+      function PC_LOCAL_WEBAUDIO_SOURCE(test) {
+        const oscillator = ac.createOscillator();
+        oscillator.type = "sine";
+        oscillator.frequency.value = 700;
+        oscillator.start();
+        const dest = ac.createMediaStreamDestination();
+        oscillator.connect(dest);
+        test.pcLocal.attachLocalStream(dest.stream);
+      },
+    ]);
+    test.chain.append([
+      function CHECK_REMOTE_AUDIO_FLOW(test) {
+        return test.pcRemote.checkReceivingToneFrom(ac, test.pcLocal);
+      },
+    ]);
+    return test.run();
+  });
+}