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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "components/performance_manager/public/resource_attribution/process_context.h"
#include <memory>
#include <optional>
#include "base/memory/weak_ptr.h"
#include "components/performance_manager/public/graph/process_node.h"
#include "components/performance_manager/public/performance_manager.h"
#include "components/performance_manager/public/render_process_host_id.h"
#include "components/performance_manager/resource_attribution/performance_manager_aliases.h"
#include "components/performance_manager/test_support/performance_manager_test_harness.h"
#include "components/performance_manager/test_support/test_browser_child_process.h"
#include "content/public/browser/browser_child_process_host.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/process_type.h"
#include "content/public/test/navigation_simulator.h"
#include "content/public/test/test_renderer_host.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "url/gurl.h"
namespace resource_attribution {
namespace {
using TestBrowserChildProcess = performance_manager::TestBrowserChildProcess;
using ResourceAttrProcessContextTest =
performance_manager::PerformanceManagerTestHarness;
using ResourceAttrProcessContextNoPMTest = content::RenderViewHostTestHarness;
TEST_F(ResourceAttrProcessContextTest, BrowserProcessContext) {
// PerformanceManager creates a browser ProcessNode when the test harness
// initializes it.
const std::optional<ProcessContext> process_context =
ProcessContext::FromBrowserProcess();
ASSERT_TRUE(process_context.has_value());
EXPECT_TRUE(process_context->IsBrowserProcessContext());
EXPECT_FALSE(process_context->IsRenderProcessContext());
EXPECT_EQ(nullptr, process_context->GetRenderProcessHost());
EXPECT_TRUE(process_context->GetRenderProcessHostId().is_null());
EXPECT_FALSE(process_context->IsBrowserChildProcessContext());
EXPECT_EQ(nullptr, process_context->GetBrowserChildProcessHost());
EXPECT_TRUE(process_context->GetBrowserChildProcessHostId().is_null());
base::WeakPtr<ProcessNode> process_node =
process_context->GetWeakProcessNode();
base::WeakPtr<ProcessNode> process_node_from_pm =
PerformanceManager::GetProcessNodeForBrowserProcess();
ASSERT_TRUE(process_node);
ASSERT_TRUE(process_node_from_pm);
EXPECT_EQ(process_node.get(), process_node_from_pm.get());
EXPECT_EQ(process_node.get(), process_context->GetProcessNode());
EXPECT_EQ(process_context.value(), process_node->GetResourceContext());
EXPECT_EQ(process_context.value(),
ProcessContext::FromProcessNode(process_node.get()));
EXPECT_EQ(process_context.value(),
ProcessContext::FromWeakProcessNode(process_node));
performance_manager::DeleteBrowserProcessNodeForTesting();
EXPECT_TRUE(process_context->IsBrowserProcessContext());
EXPECT_FALSE(process_node);
EXPECT_EQ(nullptr, process_context->GetProcessNode());
EXPECT_EQ(std::nullopt, ProcessContext::FromWeakProcessNode(process_node));
}
TEST_F(ResourceAttrProcessContextTest, RenderProcessContext) {
std::unique_ptr<content::WebContents> web_contents = CreateTestWebContents();
// Navigate to an initial page to create a renderer process.
content::RenderFrameHost* rfh =
content::NavigationSimulator::NavigateAndCommitFromBrowser(
web_contents.get(), GURL("https://a.com/"));
ASSERT_TRUE(rfh);
content::RenderProcessHost* rph = rfh->GetProcess();
ASSERT_TRUE(rph);
const RenderProcessHostId rph_id = rph->GetID();
std::optional<ProcessContext> process_context =
ProcessContext::FromRenderProcessHost(rph);
ASSERT_TRUE(process_context.has_value());
EXPECT_TRUE(process_context->IsRenderProcessContext());
EXPECT_EQ(rph, process_context->GetRenderProcessHost());
EXPECT_EQ(rph_id, process_context->GetRenderProcessHostId());
EXPECT_FALSE(process_context->IsBrowserProcessContext());
EXPECT_FALSE(process_context->IsBrowserChildProcessContext());
EXPECT_EQ(nullptr, process_context->GetBrowserChildProcessHost());
EXPECT_TRUE(process_context->GetBrowserChildProcessHostId().is_null());
base::WeakPtr<ProcessNode> process_node =
process_context->GetWeakProcessNode();
base::WeakPtr<ProcessNode> process_node_from_pm =
PerformanceManager::GetProcessNodeForRenderProcessHost(rph);
ASSERT_TRUE(process_node);
ASSERT_TRUE(process_node_from_pm);
EXPECT_EQ(process_node.get(), process_node_from_pm.get());
EXPECT_EQ(process_node.get(), process_context->GetProcessNode());
EXPECT_EQ(process_context.value(), process_node->GetResourceContext());
EXPECT_EQ(process_context.value(),
ProcessContext::FromProcessNode(process_node.get()));
EXPECT_EQ(process_context.value(),
ProcessContext::FromWeakProcessNode(process_node));
// Make sure a second process gets a different context.
std::unique_ptr<content::WebContents> web_contents2 = CreateTestWebContents();
content::RenderFrameHost* rfh2 =
content::NavigationSimulator::NavigateAndCommitFromBrowser(
web_contents2.get(), GURL("https://b.com/"));
ASSERT_TRUE(rfh2);
content::RenderProcessHost* rph2 = rfh2->GetProcess();
ASSERT_TRUE(rph2);
EXPECT_NE(rph, rph2);
std::optional<ProcessContext> process_context2 =
ProcessContext::FromRenderProcessHost(rph2);
EXPECT_TRUE(process_context2.has_value());
EXPECT_NE(process_context2, process_context);
web_contents.reset();
EXPECT_EQ(std::nullopt, ProcessContext::FromRenderProcessHost(rph));
EXPECT_TRUE(process_context->IsRenderProcessContext());
EXPECT_EQ(nullptr, process_context->GetRenderProcessHost());
EXPECT_EQ(rph_id, process_context->GetRenderProcessHostId());
EXPECT_FALSE(process_node);
EXPECT_EQ(nullptr, process_context->GetProcessNode());
EXPECT_EQ(std::nullopt, ProcessContext::FromWeakProcessNode(process_node));
}
TEST_F(ResourceAttrProcessContextTest, BrowserChildProcessContext) {
auto utility_process =
std::make_unique<TestBrowserChildProcess>(content::PROCESS_TYPE_UTILITY);
utility_process->SimulateLaunch();
std::optional<ProcessContext> process_context =
ProcessContext::FromBrowserChildProcessHost(utility_process->host());
ASSERT_TRUE(process_context.has_value());
EXPECT_TRUE(process_context->IsBrowserChildProcessContext());
EXPECT_EQ(utility_process->host(),
process_context->GetBrowserChildProcessHost());
EXPECT_EQ(utility_process->GetId(),
process_context->GetBrowserChildProcessHostId());
EXPECT_FALSE(process_context->IsBrowserProcessContext());
EXPECT_FALSE(process_context->IsRenderProcessContext());
EXPECT_EQ(nullptr, process_context->GetRenderProcessHost());
EXPECT_TRUE(process_context->GetRenderProcessHostId().is_null());
base::WeakPtr<ProcessNode> process_node =
process_context->GetWeakProcessNode();
base::WeakPtr<ProcessNode> process_node_from_pm =
PerformanceManager::GetProcessNodeForBrowserChildProcessHost(
utility_process->host());
ASSERT_TRUE(process_node);
ASSERT_TRUE(process_node_from_pm);
EXPECT_EQ(process_node.get(), process_node_from_pm.get());
EXPECT_EQ(process_node.get(), process_context->GetProcessNode());
EXPECT_EQ(process_context.value(), process_node->GetResourceContext());
EXPECT_EQ(process_context.value(),
ProcessContext::FromProcessNode(process_node.get()));
EXPECT_EQ(process_context.value(),
ProcessContext::FromWeakProcessNode(process_node));
// Make sure a second process gets a different context.
TestBrowserChildProcess gpu_process(content::PROCESS_TYPE_GPU);
gpu_process.SimulateLaunch();
std::optional<ProcessContext> process_context2 =
ProcessContext::FromBrowserChildProcessHost(gpu_process.host());
EXPECT_TRUE(process_context2.has_value());
EXPECT_NE(process_context2, process_context);
const BrowserChildProcessHostId utility_id = utility_process->GetId();
utility_process.reset();
EXPECT_TRUE(process_context->IsBrowserChildProcessContext());
EXPECT_EQ(nullptr, process_context->GetBrowserChildProcessHost());
EXPECT_EQ(utility_id, process_context->GetBrowserChildProcessHostId());
EXPECT_FALSE(process_node);
EXPECT_EQ(nullptr, process_context->GetProcessNode());
EXPECT_EQ(std::nullopt, ProcessContext::FromWeakProcessNode(process_node));
}
TEST_F(ResourceAttrProcessContextNoPMTest, ProcessContextWithoutPM) {
// When PerformanceManager isn't initialized, factory functions should return
// nullopt, not a context that's missing PM info.
EXPECT_EQ(std::nullopt, ProcessContext::FromBrowserProcess());
// Navigate to an initial page to create a renderer process.
std::unique_ptr<content::WebContents> web_contents = CreateTestWebContents();
content::RenderFrameHost* rfh =
content::NavigationSimulator::NavigateAndCommitFromBrowser(
web_contents.get(), GURL("https://a.com/"));
ASSERT_TRUE(rfh);
content::RenderProcessHost* rph = rfh->GetProcess();
ASSERT_TRUE(rph);
EXPECT_EQ(std::nullopt, ProcessContext::FromRenderProcessHost(rph));
TestBrowserChildProcess utility_process(content::PROCESS_TYPE_UTILITY);
EXPECT_EQ(std::nullopt, ProcessContext::FromBrowserChildProcessHost(
utility_process.host()));
}
} // namespace
} // namespace resource_attribution
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