| // Copyright 2013 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/renderer_host/render_process_host_impl.h" |
| #include "content/common/child_process_messages.h" |
| #include "content/public/browser/render_process_host.h" |
| #include "content/public/browser/render_process_host_observer.h" |
| #include "content/public/browser/render_view_host.h" |
| #include "content/public/browser/web_contents.h" |
| #include "content/public/common/url_constants.h" |
| #include "content/public/test/content_browser_test.h" |
| #include "content/public/test/content_browser_test_utils.h" |
| #include "content/shell/browser/shell.h" |
| #include "net/test/embedded_test_server/embedded_test_server.h" |
| |
| namespace content { |
| namespace { |
| |
| int RenderProcessHostCount() { |
| content::RenderProcessHost::iterator hosts = |
| content::RenderProcessHost::AllHostsIterator(); |
| int count = 0; |
| while (!hosts.IsAtEnd()) { |
| if (hosts.GetCurrentValue()->HasConnection()) |
| count++; |
| hosts.Advance(); |
| } |
| return count; |
| } |
| |
| class RenderProcessHostTest : public ContentBrowserTest, |
| public RenderProcessHostObserver { |
| public: |
| RenderProcessHostTest() : process_exits_(0), host_destructions_(0) {} |
| |
| protected: |
| // RenderProcessHostObserver: |
| virtual void RenderProcessExited(RenderProcessHost* host, |
| base::ProcessHandle handle, |
| base::TerminationStatus status, |
| int exit_code) OVERRIDE { |
| ++process_exits_; |
| } |
| virtual void RenderProcessHostDestroyed(RenderProcessHost* host) OVERRIDE { |
| ++host_destructions_; |
| } |
| |
| int process_exits_; |
| int host_destructions_; |
| }; |
| |
| // Sometimes the renderer process's ShutdownRequest (corresponding to the |
| // ViewMsg_WasSwappedOut from a previous navigation) doesn't arrive until after |
| // the browser process decides to re-use the renderer for a new purpose. This |
| // test makes sure the browser doesn't let the renderer die in that case. See |
| // http://crbug.com/87176. |
| IN_PROC_BROWSER_TEST_F(RenderProcessHostTest, |
| ShutdownRequestFromActiveTabIgnored) { |
| ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady()); |
| |
| GURL test_url = embedded_test_server()->GetURL("/simple_page.html"); |
| NavigateToURL(shell(), test_url); |
| RenderProcessHost* rph = |
| shell()->web_contents()->GetRenderViewHost()->GetProcess(); |
| |
| host_destructions_ = 0; |
| process_exits_ = 0; |
| rph->AddObserver(this); |
| ChildProcessHostMsg_ShutdownRequest msg; |
| rph->OnMessageReceived(msg); |
| |
| // If the RPH sends a mistaken ChildProcessMsg_Shutdown, the renderer process |
| // will take some time to die. Wait for a second tab to load in order to give |
| // that time to happen. |
| NavigateToURL(CreateBrowser(), test_url); |
| |
| EXPECT_EQ(0, process_exits_); |
| if (!host_destructions_) |
| rph->RemoveObserver(this); |
| } |
| |
| IN_PROC_BROWSER_TEST_F(RenderProcessHostTest, |
| GuestsAreNotSuitableHosts) { |
| // Set max renderers to 1 to force running out of processes. |
| content::RenderProcessHost::SetMaxRendererProcessCount(1); |
| |
| ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady()); |
| |
| GURL test_url = embedded_test_server()->GetURL("/simple_page.html"); |
| NavigateToURL(shell(), test_url); |
| RenderProcessHost* rph = |
| shell()->web_contents()->GetRenderViewHost()->GetProcess(); |
| // Make it believe it's a guest. |
| reinterpret_cast<RenderProcessHostImpl*>(rph)-> |
| set_is_isolated_guest_for_testing(true); |
| EXPECT_EQ(1, RenderProcessHostCount()); |
| |
| // Navigate to a different page. |
| GURL::Replacements replace_host; |
| std::string host_str("localhost"); // Must stay in scope with replace_host. |
| replace_host.SetHostStr(host_str); |
| GURL another_url = embedded_test_server()->GetURL("/simple_page.html"); |
| another_url = another_url.ReplaceComponents(replace_host); |
| NavigateToURL(CreateBrowser(), another_url); |
| |
| // Expect that we got another process (the guest renderer was not reused). |
| EXPECT_EQ(2, RenderProcessHostCount()); |
| } |
| |
| class ShellCloser : public RenderProcessHostObserver { |
| public: |
| ShellCloser(Shell* shell, std::string* logging_string) |
| : shell_(shell), logging_string_(logging_string) {} |
| |
| protected: |
| // RenderProcessHostObserver: |
| virtual void RenderProcessExited(RenderProcessHost* host, |
| base::ProcessHandle handle, |
| base::TerminationStatus status, |
| int exit_code) OVERRIDE { |
| logging_string_->append("ShellCloser::RenderProcessExited "); |
| shell_->Close(); |
| } |
| |
| virtual void RenderProcessHostDestroyed(RenderProcessHost* host) OVERRIDE { |
| logging_string_->append("ShellCloser::RenderProcessHostDestroyed "); |
| } |
| |
| Shell* shell_; |
| std::string* logging_string_; |
| }; |
| |
| class ObserverLogger : public RenderProcessHostObserver { |
| public: |
| explicit ObserverLogger(std::string* logging_string) |
| : logging_string_(logging_string), host_destroyed_(false) {} |
| |
| bool host_destroyed() { return host_destroyed_; } |
| |
| protected: |
| // RenderProcessHostObserver: |
| virtual void RenderProcessExited(RenderProcessHost* host, |
| base::ProcessHandle handle, |
| base::TerminationStatus status, |
| int exit_code) OVERRIDE { |
| logging_string_->append("ObserverLogger::RenderProcessExited "); |
| } |
| |
| virtual void RenderProcessHostDestroyed(RenderProcessHost* host) OVERRIDE { |
| logging_string_->append("ObserverLogger::RenderProcessHostDestroyed "); |
| host_destroyed_ = true; |
| } |
| |
| std::string* logging_string_; |
| bool host_destroyed_; |
| }; |
| |
| IN_PROC_BROWSER_TEST_F(RenderProcessHostTest, |
| AllProcessExitedCallsBeforeAnyHostDestroyedCalls) { |
| ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady()); |
| |
| GURL test_url = embedded_test_server()->GetURL("/simple_page.html"); |
| NavigateToURL(shell(), test_url); |
| |
| std::string logging_string; |
| ShellCloser shell_closer(shell(), &logging_string); |
| ObserverLogger observer_logger(&logging_string); |
| RenderProcessHost* rph = |
| shell()->web_contents()->GetRenderViewHost()->GetProcess(); |
| |
| // Ensure that the ShellCloser observer is first, so that it will have first |
| // dibs on the ProcessExited callback. |
| rph->AddObserver(&shell_closer); |
| rph->AddObserver(&observer_logger); |
| |
| // This will crash the render process, and start all the callbacks. |
| NavigateToURL(shell(), GURL(kChromeUICrashURL)); |
| |
| // The key here is that all the RenderProcessExited callbacks precede all the |
| // RenderProcessHostDestroyed callbacks. |
| EXPECT_EQ("ShellCloser::RenderProcessExited " |
| "ObserverLogger::RenderProcessExited " |
| "ShellCloser::RenderProcessHostDestroyed " |
| "ObserverLogger::RenderProcessHostDestroyed ", logging_string); |
| |
| // If the test fails, and somehow the RPH is still alive somehow, at least |
| // deregister the observers so that the test fails and doesn't also crash. |
| if (!observer_logger.host_destroyed()) { |
| rph->RemoveObserver(&shell_closer); |
| rph->RemoveObserver(&observer_logger); |
| } |
| } |
| |
| } // namespace |
| } // namespace content |