diff -r 000000000000 -r 6474c204b198 browser/devtools/debugger/test/browser_dbg_variables-view-popup-08.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/debugger/test/browser_dbg_variables-view-popup-08.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,68 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Tests opening inspecting variables works across scopes.
+ */
+
+const TAB_URL = EXAMPLE_URL + "doc_scope-variable.html";
+
+function test() {
+  Task.spawn(function() {
+    let [tab, debuggee, panel] = yield initDebugger(TAB_URL);
+    let win = panel.panelWin;
+    let events = win.EVENTS;
+    let editor = win.DebuggerView.editor;
+    let frames = win.DebuggerView.StackFrames;
+    let bubble = win.DebuggerView.VariableBubble;
+    let tooltip = bubble._tooltip.panel;
+
+    function verifyContents(textContent, className) {
+      is(tooltip.querySelectorAll(".variables-view-container").length, 0,
+        "There should be no variables view containers added to the tooltip.");
+      is(tooltip.querySelectorAll(".devtools-tooltip-simple-text").length, 1,
+        "There should be a simple text node added to the tooltip instead.");
+
+      is(tooltip.querySelector(".devtools-tooltip-simple-text").textContent, textContent,
+        "The inspected property's value is correct.");
+      ok(tooltip.querySelector(".devtools-tooltip-simple-text").className.contains(className),
+        "The inspected property's value is colorized correctly.");
+    }
+
+    function checkView(selectedFrame, caretLine) {
+      is(win.gThreadClient.state, "paused",
+        "Should only be getting stack frames while paused.");
+      is(frames.itemCount, 2,
+        "Should have two frames.");
+      is(frames.selectedDepth, selectedFrame,
+        "The correct frame is selected in the widget.");
+      ok(isCaretPos(panel, caretLine),
+        "Editor caret location is correct.");
+    }
+
+    // Allow this generator function to yield first.
+    executeSoon(() => debuggee.test());
+    yield waitForSourceAndCaretAndScopes(panel, ".html", 20);
+    checkView(0, 20);
+
+    // Inspect variable in topmost frame.
+    yield openVarPopup(panel, { line: 18, ch: 12 });
+    verifyContents("\"second scope\"", "token-string");
+    checkView(0, 20);
+
+    // Hide the popup and change the frame.
+    yield hideVarPopup(panel);
+
+    let updatedFrame = waitForDebuggerEvents(panel, events.FETCHED_SCOPES);
+    frames.selectedDepth = 1;
+    yield updatedFrame;
+    checkView(1, 15);
+
+    // Inspect variable in oldest frame.
+    yield openVarPopup(panel, { line: 13, ch: 12 });
+    verifyContents("\"first scope\"", "token-string");
+    checkView(1, 15);
+
+    yield resumeDebuggerThenCloseAndFinish(panel);
+  });
+}