Display a tooltip when mousing over a tab title.

chrome/browser/cocoa/tab_controller_unittest.mm

Index: chrome/browser/cocoa/tab_controller_unittest.mm
diff --git a/chrome/browser/cocoa/tab_controller_unittest.mm b/chrome/browser/cocoa/tab_controller_unittest.mm
index 7d1228af0716c48031544dd0d9572f594265c6ae..c6526beaf1803a4b8b43806e7b4f667254a73bd4 100644
--- a/chrome/browser/cocoa/tab_controller_unittest.mm
+++ b/chrome/browser/cocoa/tab_controller_unittest.mm
@@ -107,6 +107,19 @@ TEST_F(TabControllerTest, APISelection) {
   [[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();