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// Copyright (c) 2012 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/message_loop.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/browser/web_contents_delegate.h"
#include "content/public/test/test_browser_context.h"
#include "content/test/test_render_view_host.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace content {
class MockWebContentsDelegate : public WebContentsDelegate {
};
class WebContentsDelegateTest : public RenderViewHostImplTestHarness {
};
TEST_F(WebContentsDelegateTest, UnregisterInDestructor) {
scoped_ptr<WebContentsImpl> contents_a(static_cast<WebContentsImpl*>(
WebContents::Create(WebContents::CreateParams(browser_context()))));
scoped_ptr<WebContentsImpl> contents_b(static_cast<WebContentsImpl*>(
WebContents::Create(WebContents::CreateParams(browser_context()))));
EXPECT_EQ(NULL, contents_a->GetDelegate());
EXPECT_EQ(NULL, contents_b->GetDelegate());
scoped_ptr<MockWebContentsDelegate> delegate(new MockWebContentsDelegate());
// Setting a delegate should work correctly.
contents_a->SetDelegate(delegate.get());
EXPECT_EQ(delegate.get(), contents_a->GetDelegate());
EXPECT_TRUE(contents_b->GetDelegate() == NULL);
// A delegate can be a delegate to multiple WebContentsImpl.
contents_b->SetDelegate(delegate.get());
EXPECT_EQ(delegate.get(), contents_a->GetDelegate());
EXPECT_EQ(delegate.get(), contents_b->GetDelegate());
// Setting the same delegate multiple times should work correctly.
contents_b->SetDelegate(delegate.get());
EXPECT_EQ(delegate.get(), contents_a->GetDelegate());
EXPECT_EQ(delegate.get(), contents_b->GetDelegate());
// Setting delegate to NULL should work correctly.
contents_b->SetDelegate(NULL);
EXPECT_EQ(delegate.get(), contents_a->GetDelegate());
EXPECT_TRUE(contents_b->GetDelegate() == NULL);
// Destroying the delegate while it is still the delegate for a
// WebContentsImpl should unregister it.
contents_b->SetDelegate(delegate.get());
EXPECT_EQ(delegate.get(), contents_a->GetDelegate());
EXPECT_EQ(delegate.get(), contents_b->GetDelegate());
delegate.reset(NULL);
EXPECT_TRUE(contents_a->GetDelegate() == NULL);
EXPECT_TRUE(contents_b->GetDelegate() == NULL);
// Destroy the WebContentses and run the message loop to prevent leaks.
contents_a.reset();
contents_b.reset();
}
} // namespace content
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