[Mac] Test for avatar bubble alignment logic

chrome/browser/ui/cocoa/profiles/profile_chooser_controller_unittest.mm

Index: chrome/browser/ui/cocoa/profiles/profile_chooser_controller_unittest.mm
diff --git a/chrome/browser/ui/cocoa/profiles/profile_chooser_controller_unittest.mm b/chrome/browser/ui/cocoa/profiles/profile_chooser_controller_unittest.mm
index 4c5db4f0904bff13b729722b4af3b8a3de096143..6d16600f829e7f77aeff414d88729b61e8e33d40 100644
--- a/chrome/browser/ui/cocoa/profiles/profile_chooser_controller_unittest.mm
+++ b/chrome/browser/ui/cocoa/profiles/profile_chooser_controller_unittest.mm
@@ -25,7 +25,10 @@
 #include "chrome/browser/signin/profile_oauth2_token_service_factory.h"
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "chrome/browser/ui/browser.h"
+#import "chrome/browser/ui/cocoa/info_bubble_view.h"
+#include "chrome/browser/ui/cocoa/l10n_util.h"
 #include "chrome/browser/ui/cocoa/test/cocoa_profile_test.h"
+#include "chrome/browser/ui/cocoa/test/scoped_force_rtl_mac.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
 #include "components/signin/core/browser/fake_account_fetcher_service.h"
@@ -251,6 +254,25 @@ TEST_F(ProfileChooserControllerTest, InitialLayoutWithNewMenu) {
   EXPECT_GT([[promo stringValue] length], 0U);
 }
 
+// Check to see if the bubble is aligned properly in LTR and RTL format.
+TEST_F(ProfileChooserControllerTest, BubbleAlignment) {
+  // Test the LTR format.
+  StartProfileChooserController();
+  EXPECT_EQ(info_bubble::kAlignTrailingEdgeToAnchorEdge,
+            [[controller() bubble] alignment]);
+  [controller() close];
+
+  // Force to RTL format
+  cocoa_l10n_util::ScopedForceRTLMac rtl;
+  StartProfileChooserController();
+  info_bubble::BubbleAlignment expected_alignment =
+      cocoa_l10n_util::ShouldFlipWindowControlsInRTL()
+          ? info_bubble::kAlignTrailingEdgeToAnchorEdge
+          : info_bubble::kAlignLeadingEdgeToAnchorEdge;
+  EXPECT_EQ(expected_alignment, [[controller() bubble] alignment]);
+  [controller() close];
+}
+
 TEST_F(ProfileChooserControllerTest, RightClickTutorialShownAfterWelcome) {
   // The welcome upgrade tutorial takes precedence so show it then dismiss it.
   // The right click tutorial should be shown right away.