1 files changed, 37 insertions, 0 deletions
diff --git a/devtools/client/webaudioeditor/test/browser_wa_graph-render-04.js b/devtools/client/webaudioeditor/test/browser_wa_graph-render-04.js
new file mode 100644
index 000000000..9ed3ceffd
--- /dev/null
+++ b/devtools/client/webaudioeditor/test/browser_wa_graph-render-04.js
@@ -0,0 +1,37 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Tests audio param connection rendering.
+ */
+
+add_task(function* () {
+  let { target, panel } = yield initWebAudioEditor(CONNECT_MULTI_PARAM_URL);
+  let { panelWin } = panel;
+  let { gFront, $, $$, EVENTS } = panelWin;
+
+  let started = once(gFront, "start-context");
+
+  let events = Promise.all([
+    getN(gFront, "create-node", 5),
+    waitForGraphRendered(panelWin, 5, 2, 3)
+  ]);
+  reload(target);
+  let [actors] = yield events;
+  let nodeIDs = actors.map(actor => actor.actorID);
+
+  let [, carrier, gain, mod1, mod2] = nodeIDs;
+
+  let edges = [
+    [mod1, gain, "gain", "mod1 -> gain[gain]"],
+    [mod2, carrier, "frequency", "mod2 -> carrier[frequency]"],
+    [mod2, carrier, "detune", "mod2 -> carrier[detune]"]
+  ];
+
+  edges.forEach(([source, target, param, msg], i) => {
+    let edge = findGraphEdge(panelWin, source, target, param);
+    ok(edge.classList.contains("param-connection"), "edge is classified as a param-connection");
+  });
+
+  yield teardown(target);
+});