Display a tooltip when mousing over a tab title.

chrome/browser/cocoa/tab_controller_unittest.mm

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/scoped_nsautorelease_pool.h"
 #import "base/scoped_nsobject.h"
 #import "chrome/browser/cocoa/tab_controller.h"
 #import "chrome/browser/cocoa/tab_controller_target.h"
@@ skipping 89 matching lines @@
   scoped_nsobject<TabController> controller([[TabController alloc] init]);
   [[window contentView] addSubview:[controller view]];
 
   EXPECT_FALSE([controller selected]);
   [controller setSelected:YES];
   EXPECT_TRUE([controller selected]);
 
   [[controller view] removeFromSuperview];
 }
 
+// Tests that setting the title of a tab sets the tooltip as well.

[John Grabowski, 2009/06/02 00:10:51]

u de man jeremy.

+TEST_F(TabControllerTest, ToolTip) {
+  NSWindow* window = cocoa_helper_.window();
+
+  scoped_nsobject<TabController> controller([[TabController alloc] init]);
+  [[window contentView] addSubview:[controller view]];
+
+  EXPECT_TRUE([[controller toolTip] length] == 0);
+  NSString *tooltip_string = @"Some text to use as a tab title";
+  [controller setTitle:tooltip_string];
+  EXPECT_TRUE([tooltip_string isEqualToString:[controller toolTip]]);
+}
+
 // Tests setting the |loading| property via code.
 TEST_F(TabControllerTest, Loading) {
   NSWindow* window = cocoa_helper_.window();
   scoped_nsobject<TabController> controller([[TabController alloc] init]);
   [[window contentView] addSubview:[controller view]];
 
   EXPECT_FALSE([controller loading]);
   [controller setLoading:YES];
   EXPECT_TRUE([controller loading]);
 
@@ skipping 50 matching lines @@
                                      pressure:1.0];
   [[controller view] mouseDown:down];
 
   // Check our target was told the tab got selected.
   EXPECT_TRUE([target selected]);
 
   [[controller view] removeFromSuperview];
 }
 
 }  // namespace