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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/strings/stringprintf.h"
#include "base/timer/lap_timer.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "testing/perf/perf_result_reporter.h"
#include "ui/accessibility/ax_node_position.h"
#include "ui/accessibility/ax_tree_id.h"
#include "ui/accessibility/ax_tree_update.h"
#include "ui/accessibility/test_single_ax_tree_manager.h"
namespace ui {
using TestPositionType = std::unique_ptr<AXPosition<AXNodePosition, AXNode>>;
namespace {
constexpr int kLaps = 5000;
constexpr int kWarmupLaps = 5;
constexpr char kMetricCallsPerSecondRunsPerS[] = "calls_per_second";
class AXPositionPerfTest : public ::testing::Test,
public TestSingleAXTreeManager {
public:
AXPositionPerfTest() = default;
AXPositionPerfTest(const AXPositionPerfTest&) = delete;
AXPositionPerfTest& operator=(const AXPositionPerfTest&) = delete;
~AXPositionPerfTest() override = default;
protected:
void SetUp() override;
perf_test::PerfResultReporter SetUpReporter(const std::string& story) {
perf_test::PerfResultReporter reporter("AXPositionPerfTest.", story);
reporter.RegisterImportantMetric(kMetricCallsPerSecondRunsPerS, "runs/s");
return reporter;
}
};
void AXPositionPerfTest::SetUp() {
// Setup a root with 5 child kGenericContainer with 5 kStaticText each.
// Each kStaticText contains 5 characters of text.
//
// +------------------------+--------------+
// | Tree Hierarchy + Role | anchor_id(s) |
// +------------------------+--------------+
// | ++kRootWebArea | 1 |
// | ++++kGenericContainer | 2 |
// | ++++++kStaticText | 7 - 11 |
// | ++++kGenericContainer | 3 |
// | ++++++kStaticText | 12 - 16 |
// | ++++kGenericContainer | 4 |
// | ++++++kStaticText | 17 - 21 |
// | ++++kGenericContainer | 5 |
// | ++++++kStaticText | 22 - 26 |
// | ++++kGenericContainer | 6 |
// | ++++++kStaticText | 27 - 31 |
// +------------------------+--------------+
constexpr int kNumberOfGroups = 5;
constexpr int kStaticTextNodesPerGroup = 5;
constexpr int kNumberOfStaticTextNodes =
kNumberOfGroups * kStaticTextNodesPerGroup;
constexpr int kGroupNodesStartIndex = 1;
constexpr int kStaticTextNodesStartIndex =
kGroupNodesStartIndex + kNumberOfGroups;
AXNodeID current_id = 0;
std::vector<AXNodeData> nodes;
nodes.resize(1 + kNumberOfGroups + kNumberOfStaticTextNodes);
AXNodeData& root_data = nodes[0];
root_data.id = ++current_id;
root_data.role = ax::mojom::Role::kRootWebArea;
for (int group_index = 0; group_index < kNumberOfGroups; ++group_index) {
AXNodeData& group = nodes[kGroupNodesStartIndex + group_index];
group.id = ++current_id;
group.role = ax::mojom::Role::kGenericContainer;
root_data.child_ids.push_back(group.id);
}
for (int text_index = 0; text_index < kNumberOfStaticTextNodes;
++text_index) {
const int group_index = text_index / kStaticTextNodesPerGroup;
AXNodeData& group = nodes[kGroupNodesStartIndex + group_index];
AXNodeData& static_text = nodes[kStaticTextNodesStartIndex + text_index];
static_text.id = ++current_id;
static_text.role = ax::mojom::Role::kStaticText;
static_text.SetName(base::StringPrintf("id_%02X", static_text.id));
group.child_ids.push_back(static_text.id);
}
AXTreeUpdate initial_state;
initial_state.root_id = nodes[0].id;
initial_state.nodes = nodes;
initial_state.has_tree_data = true;
initial_state.tree_data.tree_id = AXTreeID::CreateNewAXTreeID();
initial_state.tree_data.title = "Perftest title";
SetTree(std::make_unique<AXTree>(initial_state));
}
} // namespace
TEST_F(AXPositionPerfTest, AsTreePositionFromTextPosition) {
TestPositionType text_position = CreateTextPosition(
/*anchor_id=*/1, /*text_offset=*/103,
ax::mojom::TextAffinity::kDownstream);
// The time limit is unused. Use kLaps for the check interval so the time is
// only measured once.
base::LapTimer timer(kWarmupLaps, base::TimeDelta(), kLaps);
for (int i = 0; i < kLaps + kWarmupLaps; ++i) {
TestPositionType as_tree_position = text_position->AsTreePosition();
timer.NextLap();
}
auto reporter = SetUpReporter("AsTreePositionFromTextPosition");
reporter.AddResult(kMetricCallsPerSecondRunsPerS, timer.LapsPerSecond());
}
TEST_F(AXPositionPerfTest, AsLeafTextPositionFromTextPosition) {
TestPositionType text_position = CreateTextPosition(
/*anchor_id=*/1, /*text_offset=*/103,
ax::mojom::TextAffinity::kDownstream);
// The time limit is unused. Use kLaps for the check interval so the time is
// only measured once.
base::LapTimer timer(kWarmupLaps, base::TimeDelta(), kLaps);
for (int i = 0; i < kLaps + kWarmupLaps; ++i) {
TestPositionType as_tree_position = text_position->AsLeafTextPosition();
timer.NextLap();
}
auto reporter = SetUpReporter("AsLeafTextPositionFromTextPosition");
reporter.AddResult(kMetricCallsPerSecondRunsPerS, timer.LapsPerSecond());
}
TEST_F(AXPositionPerfTest, AsLeafTextPositionFromTreePosition) {
TestPositionType tree_position =
CreateTreePosition(*ax_tree()->root(), /*child_index=*/4);
base::LapTimer timer(kWarmupLaps, base::TimeDelta(), kLaps);
for (int i = 0; i < kLaps + kWarmupLaps; ++i) {
TestPositionType as_tree_position = tree_position->AsLeafTextPosition();
timer.NextLap();
}
auto reporter = SetUpReporter("AsLeafTextPositionFromTreePosition");
reporter.AddResult(kMetricCallsPerSecondRunsPerS, timer.LapsPerSecond());
}
TEST_F(AXPositionPerfTest, CompareTextPositions) {
TestPositionType text_position_1 = CreateTextPosition(
/*anchor_id=*/7, /*text_offset=*/1, ax::mojom::TextAffinity::kDownstream);
TestPositionType text_position_2 = CreateTextPosition(
/*anchor_id=*/27, /*text_offset=*/1,
ax::mojom::TextAffinity::kDownstream);
base::LapTimer timer(kWarmupLaps, base::TimeDelta(), kLaps);
for (int i = 0; i < kLaps + kWarmupLaps; ++i) {
text_position_1->CompareTo(*text_position_2);
timer.NextLap();
}
auto reporter = SetUpReporter("CompareTextPositions");
reporter.AddResult(kMetricCallsPerSecondRunsPerS, timer.LapsPerSecond());
}
} // namespace ui
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