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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ui/ozone/platform/flatland/flatland_connection.h"
#include <fuchsia/scenic/scheduling/cpp/fidl.h>
#include <fuchsia/ui/composition/cpp/fidl.h>
#include <lib/ui/scenic/cpp/testing/fake_flatland.h>
#include <string>
#include "base/fuchsia/scoped_service_publisher.h"
#include "base/fuchsia/test_component_context_for_process.h"
#include "base/logging.h"
#include "base/test/bind.h"
#include "base/test/task_environment.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace ui {
namespace {
std::string GetCurrentTestName() {
return ::testing::UnitTest::GetInstance()->current_test_info()->name();
}
// Fixture to exercise Present() logic in FlatlandConnection.
class FlatlandConnectionTest : public ::testing::Test {
protected:
FlatlandConnectionTest()
: fake_flatland_publisher_(test_context_.additional_services(),
fake_flatland_.GetFlatlandRequestHandler()) {}
~FlatlandConnectionTest() override = default;
protected:
base::test::SingleThreadTaskEnvironment task_environment_{
base::test::SingleThreadTaskEnvironment::MainThreadType::IO};
scenic::FakeFlatland fake_flatland_;
private:
base::TestComponentContextForProcess test_context_;
// Injects binding for responding to Flatland protocol connection requests.
const base::ScopedServicePublisher<fuchsia::ui::composition::Flatland>
fake_flatland_publisher_;
};
TEST_F(FlatlandConnectionTest, Initialization) {
// Create the FlatlandConnection but don't pump the loop. No FIDL calls are
// completed yet.
const std::string debug_name = GetCurrentTestName();
FlatlandConnection flatland_connection(
debug_name, base::BindLambdaForTesting(
[](fuchsia::ui::composition::FlatlandError) { FAIL(); }));
EXPECT_EQ(fake_flatland_.debug_name(), "");
// Ensure the debug name is set.
task_environment_.RunUntilIdle();
EXPECT_EQ(fake_flatland_.debug_name(), debug_name);
}
TEST_F(FlatlandConnectionTest, BasicPresent) {
// Set up callbacks which allow sensing of how many presents were handled.
size_t presents_called = 0u;
fake_flatland_.SetPresentHandler(
[&presents_called](fuchsia::ui::composition::PresentArgs present_args) {
presents_called++;
});
// Create the FlatlandConnection but don't pump the loop. No FIDL calls are
// completed yet.
FlatlandConnection flatland_connection(
GetCurrentTestName(),
base::BindLambdaForTesting(
[](fuchsia::ui::composition::FlatlandError) { FAIL(); }));
EXPECT_EQ(presents_called, 0u);
flatland_connection.Present();
task_environment_.RunUntilIdle();
EXPECT_EQ(presents_called, 1u);
}
TEST_F(FlatlandConnectionTest, RespectsPresentCredits) {
// Set up callbacks which allow sensing of how many presents were handled.
size_t presents_called = 0u;
fake_flatland_.SetPresentHandler(
[&presents_called](fuchsia::ui::composition::PresentArgs present_args) {
presents_called++;
});
// Create the FlatlandConnection but don't pump the loop. No FIDL calls are
// completed yet.
FlatlandConnection flatland_connection(
GetCurrentTestName(),
base::BindLambdaForTesting(
[](fuchsia::ui::composition::FlatlandError) { FAIL(); }));
EXPECT_EQ(presents_called, 0u);
flatland_connection.Present();
task_environment_.RunUntilIdle();
EXPECT_EQ(presents_called, 1u);
// Next Present should fail because we dont have credits.
fuchsia::ui::composition::PresentArgs present_args;
present_args.set_requested_presentation_time(0);
present_args.set_acquire_fences({});
present_args.set_release_fences({});
present_args.set_unsquashable(false);
bool on_presented_called = false;
flatland_connection.Present(
std::move(present_args),
base::BindLambdaForTesting(
[&on_presented_called](base::TimeTicks, base::TimeDelta) {
on_presented_called = true;
}));
task_environment_.RunUntilIdle();
EXPECT_EQ(presents_called, 1u);
// Fire on frame presented event;
fuchsia::scenic::scheduling::FramePresentedInfo frame_presented_info_1;
frame_presented_info_1.presentation_infos.resize(1);
fake_flatland_.FireOnFramePresentedEvent(std::move(frame_presented_info_1));
task_environment_.RunUntilIdle();
EXPECT_FALSE(on_presented_called);
// Give additional present credits.
fuchsia::ui::composition::OnNextFrameBeginValues on_next_frame_begin_values;
on_next_frame_begin_values.set_additional_present_credits(1);
fake_flatland_.FireOnNextFrameBeginEvent(
std::move(on_next_frame_begin_values));
task_environment_.RunUntilIdle();
flatland_connection.Present();
task_environment_.RunUntilIdle();
EXPECT_EQ(presents_called, 2u);
// Pending callback should be called.
fuchsia::scenic::scheduling::FramePresentedInfo frame_presented_info_2;
frame_presented_info_2.presentation_infos.resize(1);
fake_flatland_.FireOnFramePresentedEvent(std::move(frame_presented_info_2));
task_environment_.RunUntilIdle();
EXPECT_TRUE(on_presented_called);
}
TEST_F(FlatlandConnectionTest, CalculatesPresentationInterval) {
// Set up callbacks which allow sensing of how many presents were handled.
size_t presents_called = 0u;
fake_flatland_.SetPresentHandler(
[&presents_called](fuchsia::ui::composition::PresentArgs present_args) {
presents_called++;
});
// Create the FlatlandConnection but don't pump the loop. No FIDL calls are
// completed yet.
FlatlandConnection flatland_connection(
GetCurrentTestName(),
base::BindLambdaForTesting(
[](fuchsia::ui::composition::FlatlandError) { FAIL(); }));
EXPECT_EQ(presents_called, 0u);
fuchsia::ui::composition::PresentArgs present_args;
present_args.set_requested_presentation_time(0);
present_args.set_acquire_fences({});
present_args.set_release_fences({});
present_args.set_unsquashable(false);
bool on_presented_called = false;
base::TimeDelta presentation_interval;
flatland_connection.Present(
std::move(present_args),
base::BindLambdaForTesting(
[&on_presented_called, &presentation_interval](
base::TimeTicks, base::TimeDelta interval) {
on_presented_called = true;
presentation_interval = interval;
}));
task_environment_.RunUntilIdle();
EXPECT_EQ(presents_called, 1u);
// Fire OnNextFrameBegin() followed by FramePresented() to trigger
// OnFramePresentedCallback.
const zx_time_t kStartTime = 123;
fuchsia::scenic::scheduling::PresentationInfo info_1;
info_1.set_presentation_time(kStartTime);
const zx_duration_t kInterval = 345;
fuchsia::scenic::scheduling::PresentationInfo info_2;
info_2.set_presentation_time(kStartTime + kInterval);
std::vector<fuchsia::scenic::scheduling::PresentationInfo> infos;
infos.push_back(std::move(info_1));
infos.push_back(std::move(info_2));
fuchsia::ui::composition::OnNextFrameBeginValues on_next_frame_begin_values;
on_next_frame_begin_values.set_future_presentation_infos(std::move(infos));
on_next_frame_begin_values.set_additional_present_credits(1);
fake_flatland_.FireOnNextFrameBeginEvent(
std::move(on_next_frame_begin_values));
fuchsia::scenic::scheduling::FramePresentedInfo frame_presented_info_1;
frame_presented_info_1.presentation_infos.resize(1);
fake_flatland_.FireOnFramePresentedEvent(std::move(frame_presented_info_1));
task_environment_.RunUntilIdle();
EXPECT_TRUE(on_presented_called);
EXPECT_EQ(base::TimeDelta::FromZxDuration(kInterval), presentation_interval);
}
TEST_F(FlatlandConnectionTest, ReleaseFences) {
// Set up callbacks which allow sensing of how many presents were handled.
size_t presents_called = 0u;
zx_handle_t release_fence_handle;
fake_flatland_.SetPresentHandler(
[&presents_called, &release_fence_handle](
fuchsia::ui::composition::PresentArgs present_args) {
presents_called++;
release_fence_handle =
present_args.release_fences().empty()
? ZX_HANDLE_INVALID
: present_args.release_fences().front().get();
});
// Create the FlatlandConnection but don't pump the loop. No FIDL calls are
// completed yet.
FlatlandConnection flatland_connection(
GetCurrentTestName(),
base::BindLambdaForTesting(
[](fuchsia::ui::composition::FlatlandError) { FAIL(); }));
EXPECT_EQ(presents_called, 0u);
zx::event first_release_fence;
zx::event::create(0, &first_release_fence);
const zx_handle_t first_release_fence_handle = first_release_fence.get();
fuchsia::ui::composition::PresentArgs present_args;
present_args.set_requested_presentation_time(0);
present_args.set_acquire_fences({});
std::vector<zx::event> fences;
fences.push_back(std::move(first_release_fence));
present_args.set_release_fences({std::move(fences)});
present_args.set_unsquashable(false);
flatland_connection.Present(std::move(present_args),
FlatlandConnection::OnFramePresentedCallback());
task_environment_.RunUntilIdle();
EXPECT_EQ(presents_called, 1u);
EXPECT_EQ(release_fence_handle, ZX_HANDLE_INVALID);
// Give additional present credits
fuchsia::ui::composition::OnNextFrameBeginValues on_next_frame_begin_values;
on_next_frame_begin_values.set_additional_present_credits(1);
fake_flatland_.FireOnNextFrameBeginEvent(
std::move(on_next_frame_begin_values));
task_environment_.RunUntilIdle();
flatland_connection.Present();
task_environment_.RunUntilIdle();
EXPECT_EQ(presents_called, 2u);
EXPECT_EQ(release_fence_handle, first_release_fence_handle);
}
} // namespace
} // namespace ui
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