Index: ios/shared/chrome/browser/ui/browser_list/browser_list_unittest.mm |
diff --git a/ios/shared/chrome/browser/ui/browser_list/browser_list_unittest.mm b/ios/shared/chrome/browser/ui/browser_list/browser_list_unittest.mm |
index 5b53de6ccdf24d1f2dcc186357975226eff991f0..ece8ca1eac249f46248774fbdc76aa48291dbd08 100644 |
--- a/ios/shared/chrome/browser/ui/browser_list/browser_list_unittest.mm |
+++ b/ios/shared/chrome/browser/ui/browser_list/browser_list_unittest.mm |
@@ -7,7 +7,9 @@ |
#include <memory> |
#include "base/macros.h" |
+#include "base/scoped_observer.h" |
#include "ios/chrome/browser/browser_state/test_chrome_browser_state.h" |
+#import "ios/shared/chrome/browser/ui/browser_list/browser_list_observer.h" |
#include "testing/gtest/include/gtest/gtest.h" |
#include "testing/platform_test.h" |
@@ -15,6 +17,40 @@ |
#error "This file requires ARC support." |
#endif |
+namespace { |
+ |
+class BrowserListTestObserver : public BrowserListObserver { |
+ public: |
+ BrowserListTestObserver() = default; |
+ |
+ // Reset statistics whether events has been called. |
+ void ResetStatistics() { |
+ browser_created_called_ = false; |
+ browser_removed_called_ = false; |
+ } |
+ |
+ // Returns whether OnBrowserCreated() was invoked. |
+ bool browser_created_called() const { return browser_created_called_; } |
+ |
+ // Returns whether OnBrowserRemoved() was invoked. |
+ bool browser_removed_called() const { return browser_removed_called_; } |
+ |
+ // BrowserListObserver implementation. |
+ void OnBrowserCreated(BrowserList* browser_list, Browser* browser) override { |
+ browser_created_called_ = true; |
+ } |
+ |
+ void OnBrowserRemoved(BrowserList* browser_list, Browser* browser) override { |
+ browser_removed_called_ = true; |
+ } |
+ |
+ private: |
+ bool browser_created_called_ = false; |
+ bool browser_removed_called_ = false; |
+}; |
+ |
+} // namespace |
+ |
class BrowserListTest : public PlatformTest { |
public: |
BrowserListTest() { |
@@ -91,3 +127,27 @@ TEST_F(BrowserListTest, GetIndexOfBrowser) { |
EXPECT_EQ(0, browser_list->GetIndexOfBrowser(browser_1)); |
EXPECT_EQ(browser_1, browser_list->GetBrowserAtIndex(0)); |
} |
+ |
+TEST_F(BrowserListTest, Observer) { |
+ BrowserList* browser_list = BrowserList::FromBrowserState(browser_state()); |
+ |
+ BrowserListTestObserver observer; |
+ ScopedObserver<BrowserList, BrowserListObserver> scoped_observer(&observer); |
+ scoped_observer.Add(browser_list); |
+ |
+ observer.ResetStatistics(); |
+ ASSERT_FALSE(observer.browser_created_called()); |
+ ASSERT_FALSE(observer.browser_removed_called()); |
+ |
+ browser_list->CreateNewBrowser(); |
+ EXPECT_TRUE(observer.browser_created_called()); |
+ EXPECT_FALSE(observer.browser_removed_called()); |
+ |
+ observer.ResetStatistics(); |
+ ASSERT_FALSE(observer.browser_created_called()); |
+ ASSERT_FALSE(observer.browser_removed_called()); |
+ |
+ browser_list->CloseBrowserAtIndex(0); |
+ EXPECT_FALSE(observer.browser_created_called()); |
+ EXPECT_TRUE(observer.browser_removed_called()); |
+} |