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// Copyright 2017 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 "components/viz/service/frame_sinks/referenced_surface_tracker.h"
#include <memory>
#include "base/containers/flat_set.h"
#include "base/logging.h"
#include "base/macros.h"
#include "components/viz/common/surfaces/frame_sink_id.h"
#include "components/viz/common/surfaces/surface_id.h"
#include "components/viz/service/surfaces/surface_reference.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
using testing::UnorderedElementsAre;
using testing::IsEmpty;
namespace viz {
namespace test {
namespace {
constexpr FrameSinkId kParentFrameSink(2, 1);
constexpr FrameSinkId kChildFrameSink1(65563, 1);
constexpr FrameSinkId kChildFrameSink2(65564, 1);
base::flat_set<SurfaceId> MakeReferenceSet(
std::initializer_list<SurfaceId> surface_ids) {
return base::flat_set<SurfaceId>(surface_ids, base::KEEP_FIRST_OF_DUPES);
}
SurfaceId MakeSurfaceId(const FrameSinkId& frame_sink_id, uint32_t parent_id) {
return SurfaceId(
frame_sink_id,
LocalSurfaceId(parent_id, base::UnguessableToken::Deserialize(0, 1u)));
}
} // namespace
class ReferencedSurfaceTrackerTest : public testing::Test {
public:
ReferencedSurfaceTrackerTest() {}
~ReferencedSurfaceTrackerTest() override {}
const std::vector<SurfaceReference>& references_to_remove() const {
return references_to_remove_;
}
const std::vector<SurfaceReference>& references_to_add() const {
return references_to_add_;
}
void UpdateReferences(
const SurfaceId& surface_id,
const base::flat_set<SurfaceId>& old_referenced_surfaces,
const base::flat_set<SurfaceId>& new_referenced_surfaces) {
references_to_add_.clear();
references_to_remove_.clear();
GetSurfaceReferenceDifference(surface_id, old_referenced_surfaces,
new_referenced_surfaces, &references_to_add_,
&references_to_remove_);
}
private:
std::vector<SurfaceReference> references_to_add_;
std::vector<SurfaceReference> references_to_remove_;
DISALLOW_COPY_AND_ASSIGN(ReferencedSurfaceTrackerTest);
};
TEST_F(ReferencedSurfaceTrackerTest, AddSurfaceReference) {
const SurfaceId parent_id = MakeSurfaceId(kParentFrameSink, 1);
const SurfaceId child_id1 = MakeSurfaceId(kChildFrameSink1, 1);
const SurfaceReference reference(parent_id, child_id1);
// Check that reference to |child_id1| is added.
UpdateReferences(parent_id, MakeReferenceSet({}),
MakeReferenceSet({child_id1}));
EXPECT_THAT(references_to_add(), UnorderedElementsAre(reference));
EXPECT_THAT(references_to_remove(), IsEmpty());
}
TEST_F(ReferencedSurfaceTrackerTest, NoChangeToReferences) {
const SurfaceId parent_id = MakeSurfaceId(kParentFrameSink, 1);
const SurfaceId child_id1 = MakeSurfaceId(kChildFrameSink1, 1);
const SurfaceReference reference(parent_id, child_id1);
// Check that no references are added or removed.
auto referenced_surfaces = MakeReferenceSet({child_id1});
UpdateReferences(parent_id, referenced_surfaces, referenced_surfaces);
EXPECT_THAT(references_to_remove(), IsEmpty());
EXPECT_THAT(references_to_add(), IsEmpty());
}
TEST_F(ReferencedSurfaceTrackerTest, RemoveSurfaceReference) {
const SurfaceId parent_id = MakeSurfaceId(kParentFrameSink, 1);
const SurfaceId child_id1 = MakeSurfaceId(kChildFrameSink1, 1);
const SurfaceReference reference(parent_id, child_id1);
// Check that reference to |child_id1| is removed.
UpdateReferences(parent_id, MakeReferenceSet({child_id1}),
MakeReferenceSet({}));
EXPECT_THAT(references_to_add(), IsEmpty());
EXPECT_THAT(references_to_remove(), UnorderedElementsAre(reference));
}
TEST_F(ReferencedSurfaceTrackerTest, RemoveOneOfTwoSurfaceReferences) {
const SurfaceId parent_id = MakeSurfaceId(kParentFrameSink, 1);
const SurfaceId child_id1_first = MakeSurfaceId(kChildFrameSink1, 1);
const SurfaceId child_id1_second = MakeSurfaceId(kChildFrameSink1, 2);
const SurfaceReference reference_first(parent_id, child_id1_first);
const SurfaceReference reference_second(parent_id, child_id1_second);
// Check that reference to |child_id1_first| is removed and reference to
// |child_id1_second| is added.
UpdateReferences(parent_id, MakeReferenceSet({child_id1_first}),
MakeReferenceSet({child_id1_second}));
EXPECT_THAT(references_to_remove(), UnorderedElementsAre(reference_first));
EXPECT_THAT(references_to_add(), UnorderedElementsAre(reference_second));
}
TEST_F(ReferencedSurfaceTrackerTest, AddTwoThenRemoveOneSurfaceReferences) {
const SurfaceId parent_id = MakeSurfaceId(kParentFrameSink, 1);
const SurfaceId child_id1 = MakeSurfaceId(kChildFrameSink1, 1);
const SurfaceId child_id2 = MakeSurfaceId(kChildFrameSink2, 2);
const SurfaceReference reference1(parent_id, child_id1);
const SurfaceReference reference2(parent_id, child_id2);
// Check that first frame adds both surface references.
const auto initial_referenced = MakeReferenceSet({child_id1, child_id2});
UpdateReferences(parent_id, MakeReferenceSet({}), initial_referenced);
EXPECT_THAT(references_to_remove(), IsEmpty());
EXPECT_THAT(references_to_add(),
UnorderedElementsAre(reference1, reference2));
// Check that reference to |child_id1| is removed but not to |child_id2|.
UpdateReferences(parent_id, initial_referenced,
MakeReferenceSet({child_id2}));
EXPECT_THAT(references_to_remove(), UnorderedElementsAre(reference1));
EXPECT_THAT(references_to_add(), IsEmpty());
}
} // namespace test
} // namespace viz
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