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// Copyright 2018 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/viz/common/surfaces/child_local_surface_id_allocator.h"
#include "components/viz/common/surfaces/parent_local_surface_id_allocator.h"
#include "testing/gtest/include/gtest/gtest.h"
// ChildLocalSurfaceIdAllocator has 1 accessor which does not alter state:
// - GetCurrentLocalSurfaceId()
//
// For every operation which changes state we can test:
// - the operation completed as expected,
// - the accessors did not change, and/or
// - the accessors changed in the way we expected.
namespace viz {
namespace {
::testing::AssertionResult ParentSequenceNumberIsNotSet(
const LocalSurfaceId& local_surface_id);
::testing::AssertionResult ChildSequenceNumberIsSet(
const LocalSurfaceId& local_surface_id);
::testing::AssertionResult EmbedTokenIsValid(
const LocalSurfaceId& local_surface_id);
} // namespace
class ChildLocalSurfaceIdAllocatorTest : public testing::Test {
public:
ChildLocalSurfaceIdAllocatorTest() = default;
ChildLocalSurfaceIdAllocatorTest(const ChildLocalSurfaceIdAllocatorTest&) =
delete;
ChildLocalSurfaceIdAllocatorTest& operator=(
const ChildLocalSurfaceIdAllocatorTest&) = delete;
~ChildLocalSurfaceIdAllocatorTest() override = default;
ChildLocalSurfaceIdAllocator& allocator() { return *allocator_.get(); }
ParentLocalSurfaceIdAllocator& parent_allocator1() {
return *parent_allocator1_.get();
}
ParentLocalSurfaceIdAllocator& parent_allocator2() {
return *parent_allocator2_.get();
}
// testing::Test:
void SetUp() override {
testing::Test::SetUp();
allocator_ = std::make_unique<ChildLocalSurfaceIdAllocator>();
parent_allocator1_ = std::make_unique<ParentLocalSurfaceIdAllocator>();
parent_allocator2_ = std::make_unique<ParentLocalSurfaceIdAllocator>();
}
void TearDown() override {
parent_allocator2_.reset();
parent_allocator1_.reset();
allocator_.reset();
}
private:
std::unique_ptr<ChildLocalSurfaceIdAllocator> allocator_;
std::unique_ptr<ParentLocalSurfaceIdAllocator> parent_allocator1_;
std::unique_ptr<ParentLocalSurfaceIdAllocator> parent_allocator2_;
};
// The default constructor should initialize its last-known LocalSurfaceId (and
// all of its components) to an invalid state.
TEST_F(ChildLocalSurfaceIdAllocatorTest,
DefaultConstructorShouldNotSetLocalSurfaceIdComponents) {
const LocalSurfaceId& default_local_surface_id =
allocator().GetCurrentLocalSurfaceId();
EXPECT_FALSE(default_local_surface_id.is_valid());
EXPECT_TRUE(ParentSequenceNumberIsNotSet(default_local_surface_id));
EXPECT_TRUE(ChildSequenceNumberIsSet(default_local_surface_id));
EXPECT_FALSE(EmbedTokenIsValid(default_local_surface_id));
}
// UpdateFromParent() on a child allocator should accept the parent's sequence
// number and embed_token. But it should continue to use its own child sequence
// number.
TEST_F(ChildLocalSurfaceIdAllocatorTest,
UpdateFromParentOnlyUpdatesExpectedLocalSurfaceIdComponents) {
LocalSurfaceId preupdate_local_surface_id =
allocator().GetCurrentLocalSurfaceId();
parent_allocator1().GenerateId();
LocalSurfaceId parent_allocated_local_surface_id =
parent_allocator1().GetCurrentLocalSurfaceId();
EXPECT_NE(preupdate_local_surface_id.parent_sequence_number(),
parent_allocated_local_surface_id.parent_sequence_number());
EXPECT_NE(preupdate_local_surface_id.embed_token(),
parent_allocated_local_surface_id.embed_token());
bool changed = allocator().UpdateFromParent(
parent_allocator1().GetCurrentLocalSurfaceId());
EXPECT_TRUE(changed);
const LocalSurfaceId& postupdate_local_surface_id =
allocator().GetCurrentLocalSurfaceId();
EXPECT_EQ(postupdate_local_surface_id.parent_sequence_number(),
parent_allocated_local_surface_id.parent_sequence_number());
EXPECT_EQ(postupdate_local_surface_id.embed_token(),
parent_allocated_local_surface_id.embed_token());
}
// UpdateFromParent() on a child allocator should accept the parent's
// LocalSurfaceId if only the embed_token changed.
TEST_F(ChildLocalSurfaceIdAllocatorTest, UpdateFromParentEmbedTokenChanged) {
parent_allocator1().GenerateId();
EXPECT_TRUE(parent_allocator1().GetCurrentLocalSurfaceId().is_valid());
EXPECT_TRUE(allocator().UpdateFromParent(
parent_allocator1().GetCurrentLocalSurfaceId()));
parent_allocator2().GenerateId();
EXPECT_LE(
parent_allocator2().GetCurrentLocalSurfaceId().parent_sequence_number(),
parent_allocator1().GetCurrentLocalSurfaceId().parent_sequence_number());
EXPECT_NE(parent_allocator2().GetCurrentLocalSurfaceId().embed_token(),
parent_allocator1().GetCurrentLocalSurfaceId().embed_token());
EXPECT_TRUE(allocator().UpdateFromParent(
parent_allocator2().GetCurrentLocalSurfaceId()));
}
// GenerateId() on a child allocator should monotonically increment the child
// sequence number.
TEST_F(ChildLocalSurfaceIdAllocatorTest,
GenerateIdOnlyUpdatesExpectedLocalSurfaceIdComponents) {
parent_allocator1().GenerateId();
allocator().UpdateFromParent(parent_allocator1().GetCurrentLocalSurfaceId());
LocalSurfaceId pregenerateid_local_surface_id =
allocator().GetCurrentLocalSurfaceId();
allocator().GenerateId();
const LocalSurfaceId& returned_local_surface_id =
allocator().GetCurrentLocalSurfaceId();
const LocalSurfaceId& postgenerateid_local_surface_id =
allocator().GetCurrentLocalSurfaceId();
EXPECT_EQ(pregenerateid_local_surface_id.parent_sequence_number(),
postgenerateid_local_surface_id.parent_sequence_number());
EXPECT_EQ(pregenerateid_local_surface_id.child_sequence_number() + 1,
postgenerateid_local_surface_id.child_sequence_number());
EXPECT_EQ(pregenerateid_local_surface_id.embed_token(),
postgenerateid_local_surface_id.embed_token());
EXPECT_EQ(returned_local_surface_id, allocator().GetCurrentLocalSurfaceId());
}
TEST_F(ChildLocalSurfaceIdAllocatorTest, EmbedTokenChangeResetsChildId) {
parent_allocator1().GenerateId();
EXPECT_TRUE(parent_allocator1().GetCurrentLocalSurfaceId().is_valid());
EXPECT_TRUE(allocator().UpdateFromParent(
parent_allocator1().GetCurrentLocalSurfaceId()));
allocator().GenerateId();
EXPECT_NE(1u, allocator().GetCurrentLocalSurfaceId().child_sequence_number());
parent_allocator2().GenerateId();
EXPECT_TRUE(allocator().UpdateFromParent(
parent_allocator2().GetCurrentLocalSurfaceId()));
EXPECT_EQ(1u, allocator().GetCurrentLocalSurfaceId().child_sequence_number());
}
namespace {
::testing::AssertionResult ParentSequenceNumberIsNotSet(
const LocalSurfaceId& local_surface_id) {
if (local_surface_id.parent_sequence_number() == kInvalidParentSequenceNumber)
return ::testing::AssertionSuccess();
return ::testing::AssertionFailure() << "parent_sequence_number() is set.";
}
::testing::AssertionResult ChildSequenceNumberIsSet(
const LocalSurfaceId& local_surface_id) {
if (local_surface_id.child_sequence_number() != kInvalidChildSequenceNumber)
return ::testing::AssertionSuccess();
return ::testing::AssertionFailure() << "child_sequence_number() is not set.";
}
::testing::AssertionResult EmbedTokenIsValid(
const LocalSurfaceId& local_surface_id) {
if (!local_surface_id.embed_token().is_empty())
return ::testing::AssertionSuccess();
return ::testing::AssertionFailure() << "embed_token() is not valid.";
}
} // namespace
} // namespace viz
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