diff -r 000000000000 -r 6474c204b198 browser/devtools/debugger/test/browser_dbg_pretty-print-02.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/debugger/test/browser_dbg_pretty-print-02.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,57 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+/**
+ * Make sure that right clicking and selecting the pretty print context menu
+ * item prettifies the source.
+ */
+
+const TAB_URL = EXAMPLE_URL + "doc_pretty-print.html";
+
+let gTab, gDebuggee, gPanel, gDebugger;
+let gEditor, gContextMenu;
+
+function test() {
+  initDebugger(TAB_URL).then(([aTab, aDebuggee, aPanel]) => {
+    gTab = aTab;
+    gDebuggee = aDebuggee;
+    gPanel = aPanel;
+    gDebugger = gPanel.panelWin;
+    gEditor = gDebugger.DebuggerView.editor;
+    gContextMenu = gDebugger.document.getElementById("sourceEditorContextMenu");
+
+    waitForSourceShown(gPanel, "code_ugly.js")
+      .then(() => {
+        const finished = waitForSourceShown(gPanel, "code_ugly.js");
+        selectContextMenuItem();
+        return finished;
+      })
+      .then(testSourceIsPretty)
+      .then(closeDebuggerAndFinish.bind(null, gPanel))
+      .then(null, aError => {
+        ok(false, "Got an error: " + DevToolsUtils.safeErrorString(aError));
+      });
+  });
+}
+
+function selectContextMenuItem() {
+  once(gContextMenu, "popupshown").then(() => {
+    const menuItem = gDebugger.document.getElementById("se-dbg-cMenu-prettyPrint");
+    menuItem.click();
+  });
+  gContextMenu.openPopup(gEditor.container, "overlap", 0, 0, true, false);
+}
+
+function testSourceIsPretty() {
+  ok(gEditor.getText().contains("\n  "),
+     "The source should be pretty printed.")
+}
+
+registerCleanupFunction(function() {
+  gTab = null;
+  gDebuggee = null;
+  gPanel = null;
+  gDebugger = null;
+  gEditor = null;
+  gContextMenu = null;
+});