diff -r 000000000000 -r 6474c204b198 browser/devtools/scratchpad/test/browser_scratchpad_unsaved.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/browser/devtools/scratchpad/test/browser_scratchpad_unsaved.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,121 @@
+/* vim: set ts=2 et sw=2 tw=80: */
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+/* Bug 669612 */
+
+// only finish() when correct number of tests are done
+const expected = 4;
+var count = 0;
+function done()
+{
+  if (++count == expected) {
+    finish();
+  }
+}
+
+var ScratchpadManager = Scratchpad.ScratchpadManager;
+
+
+function test()
+{
+  waitForExplicitFinish();
+
+  testListeners();
+  testRestoreNotFromFile();
+  testRestoreFromFileSaved();
+  testRestoreFromFileUnsaved();
+
+  gBrowser.selectedTab = gBrowser.addTab();
+  content.location = "data:text/html,<p>test star* UI for unsaved file changes";
+}
+
+function testListeners()
+{
+  openScratchpad(function(aWin, aScratchpad) {
+    aScratchpad.setText("new text");
+    ok(isStar(aWin), "show star if scratchpad text changes");
+
+    aScratchpad.dirty = false;
+    ok(!isStar(aWin), "no star before changing text");
+
+    aScratchpad.setFilename("foo.js");
+    aScratchpad.setText("new text2");
+    ok(isStar(aWin), "shows star if scratchpad text changes");
+
+    aScratchpad.dirty = false;
+    ok(!isStar(aWin), "no star if scratchpad was just saved");
+
+    aScratchpad.setText("new text3");
+    ok(isStar(aWin), "shows star if scratchpad has more changes");
+
+    aScratchpad.undo();
+    ok(!isStar(aWin), "no star if scratchpad undo to save point");
+
+    aScratchpad.undo();
+    ok(isStar(aWin), "star if scratchpad undo past save point");
+
+    aWin.close();
+    done();
+  }, {noFocus: true});
+}
+
+function testRestoreNotFromFile()
+{
+  let session = [{
+    text: "test1",
+    executionContext: 1
+  }];
+
+  let [win] = ScratchpadManager.restoreSession(session);
+  openScratchpad(function(aWin, aScratchpad) {
+    aScratchpad.setText("new text");
+    ok(isStar(win), "show star if restored scratchpad isn't from a file");
+
+    win.close();
+    done();
+  }, {window: win, noFocus: true});
+}
+
+function testRestoreFromFileSaved()
+{
+  let session = [{
+    filename: "test.js",
+    text: "test1",
+    executionContext: 1,
+    saved: true
+  }];
+
+  let [win] = ScratchpadManager.restoreSession(session);
+  openScratchpad(function(aWin, aScratchpad) {
+    ok(!isStar(win), "no star before changing text in scratchpad restored from file");
+
+    aScratchpad.setText("new text");
+    ok(isStar(win), "star when text changed from scratchpad restored from file");
+
+    win.close();
+    done();
+  }, {window: win, noFocus: true});
+}
+
+function testRestoreFromFileUnsaved()
+{
+  let session = [{
+    filename: "test.js",
+    text: "test1",
+    executionContext: 1,
+    saved: false
+  }];
+
+  let [win] = ScratchpadManager.restoreSession(session);
+  openScratchpad(function() {
+    ok(isStar(win), "star with scratchpad restored with unsaved text");
+
+    win.close();
+    done();
+  }, {window: win, noFocus: true});
+}
+
+function isStar(win)
+{
+  return win.document.title.match(/^\*[^\*]/);
+}