1 files changed, 36 insertions, 0 deletions
diff --git a/devtools/client/framework/test/browser_toolbox_getpanelwhenready.js b/devtools/client/framework/test/browser_toolbox_getpanelwhenready.js
new file mode 100644
index 000000000..21dd236a1
--- /dev/null
+++ b/devtools/client/framework/test/browser_toolbox_getpanelwhenready.js
@@ -0,0 +1,36 @@
+/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests that getPanelWhenReady returns the correct panel in promise
+// resolutions regardless of whether it has opened first.
+
+var toolbox = null;
+
+const URL = "data:text/html;charset=utf8,test for getPanelWhenReady";
+
+add_task(function* () {
+  let tab = yield addTab(URL);
+  let target = TargetFactory.forTab(tab);
+  toolbox = yield gDevTools.showToolbox(target);
+
+  let debuggerPanelPromise = toolbox.getPanelWhenReady("jsdebugger");
+  yield toolbox.selectTool("jsdebugger");
+  let debuggerPanel = yield debuggerPanelPromise;
+
+  is(debuggerPanel, toolbox.getPanel("jsdebugger"),
+      "The debugger panel from getPanelWhenReady before loading is the actual panel");
+
+  let debuggerPanel2 = yield toolbox.getPanelWhenReady("jsdebugger");
+  is(debuggerPanel2, toolbox.getPanel("jsdebugger"),
+      "The debugger panel from getPanelWhenReady after loading is the actual panel");
+
+  yield cleanup();
+});
+
+function* cleanup() {
+  yield toolbox.destroy();
+  gBrowser.removeCurrentTab();
+  toolbox = null;
+}