diff -r 000000000000 -r 6474c204b198 browser/devtools/webconsole/test/browser_result_format_as_string.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/webconsole/test/browser_result_format_as_string.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,41 @@
+/* vim:set ts=2 sw=2 sts=2 et: */
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Make sure that JS eval result are properly formatted as strings.
+
+const TEST_URI = "http://example.com/browser/browser/devtools/webconsole/test/test-result-format-as-string.html";
+
+function test()
+{
+  waitForExplicitFinish();
+
+  addTab(TEST_URI);
+
+  gBrowser.selectedBrowser.addEventListener("load", function onLoad() {
+    gBrowser.selectedBrowser.removeEventListener("load", onLoad, true);
+    openConsole(null, performTest);
+  }, true);
+}
+
+function performTest(hud)
+{
+  hud.jsterm.clearOutput(true);
+
+  hud.jsterm.execute("document.querySelector('p')", (msg) => {
+    is(hud.outputNode.textContent.indexOf("bug772506_content"), -1,
+       "no content element found");
+    ok(!hud.outputNode.querySelector("#foobar"), "no #foobar element found");
+
+    ok(msg, "eval output node found");
+    is(msg.textContent.indexOf("<div>"), -1,
+       "<div> string is not displayed");
+    isnot(msg.textContent.indexOf("<p>"), -1,
+          "<p> string is displayed");
+
+    EventUtils.synthesizeMouseAtCenter(msg, {type: "mousemove"});
+    ok(!gBrowser._bug772506, "no content variable");
+
+    finishTest();
+  });
+}