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// Copyright (c) 2011 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.
#include "base/compiler_specific.h"
#include "base/memory/scoped_ptr.h"
#include "base/message_loop.h"
#include "content/browser/tab_contents/tab_contents.h"
#include "content/browser/tab_contents/tab_contents_delegate.h"
#include "content/test/test_browser_context.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace {
class MockTabContentsDelegate : public TabContentsDelegate {
public:
virtual ~MockTabContentsDelegate() {}
// TODO(adriansc): Remove this method when refactoring changed all call sites.
virtual TabContents* OpenURLFromTab(
TabContents* source,
const GURL& url,
const GURL& referrer,
WindowOpenDisposition disposition,
content::PageTransition transition) OVERRIDE {
return NULL;
}
virtual TabContents* OpenURLFromTab(TabContents* source,
const OpenURLParams& params) OVERRIDE {
return NULL;
}
virtual void NavigationStateChanged(const TabContents* source,
unsigned changed_flags) OVERRIDE {}
virtual void AddNavigationHeaders(
const GURL& url, std::string* headers) OVERRIDE {
}
virtual void AddNewContents(TabContents* source,
TabContents* new_contents,
WindowOpenDisposition disposition,
const gfx::Rect& initial_pos,
bool user_gesture) OVERRIDE {}
virtual void ActivateContents(TabContents* contents) OVERRIDE {}
virtual void DeactivateContents(TabContents* contents) OVERRIDE {}
virtual void LoadingStateChanged(TabContents* source) OVERRIDE {}
virtual void LoadProgressChanged(double progress) OVERRIDE {}
virtual void CloseContents(TabContents* source) OVERRIDE {}
virtual void MoveContents(TabContents* source,
const gfx::Rect& pos) OVERRIDE {
}
virtual void UpdateTargetURL(TabContents* source, int32 page_id,
const GURL& url) {}
};
TEST(TabContentsDelegateTest, UnregisterInDestructor) {
MessageLoop loop(MessageLoop::TYPE_UI);
TestBrowserContext browser_context;
scoped_ptr<TabContents> contents_a(
new TabContents(&browser_context, NULL, 0, NULL, NULL));
scoped_ptr<TabContents> contents_b(
new TabContents(&browser_context, NULL, 0, NULL, NULL));
EXPECT_TRUE(contents_a->delegate() == NULL);
EXPECT_TRUE(contents_b->delegate() == NULL);
scoped_ptr<MockTabContentsDelegate> delegate(new MockTabContentsDelegate());
// Setting a delegate should work correctly.
contents_a->set_delegate(delegate.get());
EXPECT_EQ(delegate.get(), contents_a->delegate());
EXPECT_TRUE(contents_b->delegate() == NULL);
// A delegate can be a delegate to multiple TabContents.
contents_b->set_delegate(delegate.get());
EXPECT_EQ(delegate.get(), contents_a->delegate());
EXPECT_EQ(delegate.get(), contents_b->delegate());
// Setting the same delegate multiple times should work correctly.
contents_b->set_delegate(delegate.get());
EXPECT_EQ(delegate.get(), contents_a->delegate());
EXPECT_EQ(delegate.get(), contents_b->delegate());
// Setting delegate to NULL should work correctly.
contents_b->set_delegate(NULL);
EXPECT_EQ(delegate.get(), contents_a->delegate());
EXPECT_TRUE(contents_b->delegate() == NULL);
// Destroying the delegate while it is still the delegate
// for a TabContents should unregister it.
contents_b->set_delegate(delegate.get());
EXPECT_EQ(delegate.get(), contents_a->delegate());
EXPECT_EQ(delegate.get(), contents_b->delegate());
delegate.reset(NULL);
EXPECT_TRUE(contents_a->delegate() == NULL);
EXPECT_TRUE(contents_b->delegate() == NULL);
// Destroy the tab contents and run the message loop to prevent leaks.
contents_a.reset(NULL);
contents_b.reset(NULL);
loop.RunAllPending();
}
} // namespace
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