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// Copyright 2014 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 "content/browser/frame_host/frame_tree.h"
#include "content/browser/frame_host/frame_tree_node.h"
#include "content/browser/renderer_host/render_view_host_impl.h"
#include "content/browser/web_contents/web_contents_impl.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_types.h"
#include "content/public/common/url_constants.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/content_browser_test.h"
#include "content/public/test/content_browser_test_utils.h"
#include "content/public/test/test_navigation_observer.h"
#include "content/public/test/test_utils.h"
#include "content/shell/browser/shell.h"
#include "net/dns/mock_host_resolver.h"
namespace content {
class FrameTreeBrowserTest : public ContentBrowserTest {
public:
FrameTreeBrowserTest() {}
private:
DISALLOW_COPY_AND_ASSIGN(FrameTreeBrowserTest);
};
// Ensures FrameTree correctly reflects page structure during navigations.
IN_PROC_BROWSER_TEST_F(FrameTreeBrowserTest, FrameTreeShape) {
host_resolver()->AddRule("*", "127.0.0.1");
ASSERT_TRUE(test_server()->Start());
GURL base_url = test_server()->GetURL("files/site_isolation/");
GURL::Replacements replace_host;
std::string host_str("A.com"); // Must stay in scope with replace_host.
replace_host.SetHostStr(host_str);
base_url = base_url.ReplaceComponents(replace_host);
// Load doc without iframes. Verify FrameTree just has root.
// Frame tree:
// Site-A Root
NavigateToURL(shell(), base_url.Resolve("blank.html"));
FrameTreeNode* root =
static_cast<WebContentsImpl*>(shell()->web_contents())->
GetFrameTree()->root();
EXPECT_EQ(0U, root->child_count());
// Add 2 same-site frames. Verify 3 nodes in tree with proper names.
// Frame tree:
// Site-A Root -- Site-A frame1
// \-- Site-A frame2
WindowedNotificationObserver observer1(
content::NOTIFICATION_LOAD_STOP,
content::Source<NavigationController>(
&shell()->web_contents()->GetController()));
NavigateToURL(shell(), base_url.Resolve("frames-X-X.html"));
observer1.Wait();
ASSERT_EQ(2U, root->child_count());
EXPECT_EQ(0U, root->child_at(0)->child_count());
EXPECT_EQ(0U, root->child_at(1)->child_count());
}
// TODO(ajwong): Talk with nasko and merge this functionality with
// FrameTreeShape.
IN_PROC_BROWSER_TEST_F(FrameTreeBrowserTest, FrameTreeShape2) {
ASSERT_TRUE(test_server()->Start());
NavigateToURL(shell(),
test_server()->GetURL("files/frame_tree/top.html"));
WebContentsImpl* wc = static_cast<WebContentsImpl*>(shell()->web_contents());
FrameTreeNode* root = wc->GetFrameTree()->root();
// Check that the root node is properly created.
ASSERT_EQ(3UL, root->child_count());
EXPECT_EQ(std::string(), root->frame_name());
ASSERT_EQ(2UL, root->child_at(0)->child_count());
EXPECT_STREQ("1-1-name", root->child_at(0)->frame_name().c_str());
// Verify the deepest node exists and has the right name.
ASSERT_EQ(2UL, root->child_at(2)->child_count());
EXPECT_EQ(1UL, root->child_at(2)->child_at(1)->child_count());
EXPECT_EQ(0UL, root->child_at(2)->child_at(1)->child_at(0)->child_count());
EXPECT_STREQ("3-1-name",
root->child_at(2)->child_at(1)->child_at(0)->frame_name().c_str());
// Navigate to about:blank, which should leave only the root node of the frame
// tree in the browser process.
NavigateToURL(shell(), test_server()->GetURL("files/title1.html"));
root = wc->GetFrameTree()->root();
EXPECT_EQ(0UL, root->child_count());
EXPECT_EQ(std::string(), root->frame_name());
}
// Test that we can navigate away if the previous renderer doesn't clean up its
// child frames.
IN_PROC_BROWSER_TEST_F(FrameTreeBrowserTest, FrameTreeAfterCrash) {
ASSERT_TRUE(test_server()->Start());
NavigateToURL(shell(),
test_server()->GetURL("files/frame_tree/top.html"));
// Crash the renderer so that it doesn't send any FrameDetached messages.
RenderProcessHostWatcher crash_observer(
shell()->web_contents(),
RenderProcessHostWatcher::WATCH_FOR_PROCESS_EXIT);
NavigateToURL(shell(), GURL(kChromeUICrashURL));
crash_observer.Wait();
// The frame tree should be cleared.
WebContentsImpl* wc = static_cast<WebContentsImpl*>(shell()->web_contents());
FrameTreeNode* root = wc->GetFrameTree()->root();
EXPECT_EQ(0UL, root->child_count());
// Navigate to a new URL.
GURL url(test_server()->GetURL("files/title1.html"));
NavigateToURL(shell(), url);
EXPECT_EQ(0UL, root->child_count());
EXPECT_EQ(url, root->current_url());
}
// Test that we can navigate away if the previous renderer doesn't clean up its
// child frames.
IN_PROC_BROWSER_TEST_F(FrameTreeBrowserTest, NavigateWithLeftoverFrames) {
host_resolver()->AddRule("*", "127.0.0.1");
ASSERT_TRUE(test_server()->Start());
GURL base_url = test_server()->GetURL("files/site_isolation/");
GURL::Replacements replace_host;
std::string host_str("A.com"); // Must stay in scope with replace_host.
replace_host.SetHostStr(host_str);
base_url = base_url.ReplaceComponents(replace_host);
NavigateToURL(shell(),
test_server()->GetURL("files/frame_tree/top.html"));
// Hang the renderer so that it doesn't send any FrameDetached messages.
// (This navigation will never complete, so don't wait for it.)
shell()->LoadURL(GURL(kChromeUIHangURL));
// Check that the frame tree still has children.
WebContentsImpl* wc = static_cast<WebContentsImpl*>(shell()->web_contents());
FrameTreeNode* root = wc->GetFrameTree()->root();
ASSERT_EQ(3UL, root->child_count());
// Navigate to a new URL. We use LoadURL because NavigateToURL will try to
// wait for the previous navigation to stop.
TestNavigationObserver tab_observer(wc, 1);
shell()->LoadURL(base_url.Resolve("blank.html"));
tab_observer.Wait();
// The frame tree should now be cleared.
EXPECT_EQ(0UL, root->child_count());
}
} // namespace content
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