diff -r 000000000000 -r 6474c204b198 browser/devtools/debugger/test/browser_dbg_pretty-print-09.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/debugger/test/browser_dbg_pretty-print-09.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,89 @@
+/* -*- Mode: javascript; js-indent-level: 2; -*- */
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Test pretty printing source mapped sources.
+
+var gDebuggee;
+var gClient;
+var gThreadClient;
+var gSource;
+
+let gTab, gDebuggee, gPanel, gClient, gThreadClient, gSource;
+
+const TAB_URL = EXAMPLE_URL + "doc_pretty-print-2.html";
+
+function test() {
+  initDebugger(TAB_URL).then(([aTab, aDebuggee, aPanel]) => {
+    gTab = aTab;
+    gDebuggee = aDebuggee;
+    gPanel = aPanel;
+    gClient = gPanel.panelWin.gClient;
+    gThreadClient = gPanel.panelWin.DebuggerController.activeThread;
+
+    findSource();
+  });
+}
+
+const dataUrl = s => "data:text/javascript," + s;
+
+// These should match the instructions in code_ugly-4.js.
+const A = "function a(){b()}";
+const A_URL = dataUrl(A);
+const B = "function b(){debugger}";
+const B_URL = dataUrl(B);
+
+function findSource() {
+  gThreadClient.getSources(({ error, sources }) => {
+    ok(!error);
+    sources = sources.filter(s => s.url === B_URL);
+    is(sources.length, 1);
+    gSource = sources[0];
+    prettyPrint();
+  });
+}
+
+function prettyPrint() {
+  gThreadClient.source(gSource).prettyPrint(2, runCode);
+}
+
+function runCode({ error }) {
+  ok(!error);
+  gClient.addOneTimeListener("paused", testDbgStatement);
+  gDebuggee.a();
+}
+
+function testDbgStatement(event, { frame, why }) {
+  is(why.type, "debuggerStatement");
+  const { url, line } = frame.where;
+  is(url, B_URL);
+  is(line, 2);
+
+  disablePrettyPrint();
+}
+
+function disablePrettyPrint() {
+  gThreadClient.source(gSource).disablePrettyPrint(testUgly);
+}
+
+function testUgly({ error, source }) {
+  ok(!error);
+  ok(!source.contains("\n  "));
+  getFrame();
+}
+
+function getFrame() {
+  gThreadClient.getFrames(0, 1, testFrame);
+}
+
+function testFrame({ frames: [frame] }) {
+  const { url, line } = frame.where;
+  is(url, B_URL);
+  is(line, 1);
+
+  resumeDebuggerThenCloseAndFinish(gPanel);
+}
+
+registerCleanupFunction(function() {
+  gTab = gDebuggee = gPanel = gClient = gThreadClient = null;
+});