1 files changed, 67 insertions, 0 deletions
diff --git a/devtools/client/webaudioeditor/test/browser_wa_reset-01.js b/devtools/client/webaudioeditor/test/browser_wa_reset-01.js
new file mode 100644
index 000000000..67a0c33ff
--- /dev/null
+++ b/devtools/client/webaudioeditor/test/browser_wa_reset-01.js
@@ -0,0 +1,67 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+//
+// Whitelisting this test.
+// As part of bug 1077403, the leaking uncaught rejection should be fixed.
+//
+thisTestLeaksUncaughtRejectionsAndShouldBeFixed("Error: Connection closed");
+
+/**
+ * Tests that reloading a tab will properly listen for the `start-context`
+ * event and reshow the tools after reloading.
+ */
+
+add_task(function* () {
+  let { target, panel } = yield initWebAudioEditor(SIMPLE_CONTEXT_URL);
+  let { gFront, $ } = panel.panelWin;
+
+  is($("#reload-notice").hidden, false,
+    "The 'reload this page' notice should initially be visible.");
+  is($("#waiting-notice").hidden, true,
+    "The 'waiting for an audio context' notice should initially be hidden.");
+  is($("#content").hidden, true,
+    "The tool's content should initially be hidden.");
+
+  let navigating = once(target, "will-navigate");
+  let started = once(gFront, "start-context");
+
+  reload(target);
+
+  yield navigating;
+
+  is($("#reload-notice").hidden, true,
+    "The 'reload this page' notice should be hidden when navigating.");
+  is($("#waiting-notice").hidden, false,
+    "The 'waiting for an audio context' notice should be visible when navigating.");
+  is($("#content").hidden, true,
+    "The tool's content should still be hidden.");
+
+  yield started;
+
+  is($("#reload-notice").hidden, true,
+    "The 'reload this page' notice should be hidden after context found.");
+  is($("#waiting-notice").hidden, true,
+    "The 'waiting for an audio context' notice should be hidden after context found.");
+  is($("#content").hidden, false,
+    "The tool's content should not be hidden anymore.");
+
+  navigating = once(target, "will-navigate");
+  started = once(gFront, "start-context");
+
+  reload(target);
+
+  yield Promise.all([navigating, started]);
+  let rendered = waitForGraphRendered(panel.panelWin, 3, 2);
+
+  is($("#reload-notice").hidden, true,
+    "The 'reload this page' notice should be hidden after context found after reload.");
+  is($("#waiting-notice").hidden, true,
+    "The 'waiting for an audio context' notice should be hidden after context found after reload.");
+  is($("#content").hidden, false,
+    "The tool's content should reappear without closing and reopening the toolbox.");
+
+  yield rendered;
+
+  yield teardown(target);
+});