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// Copyright 2024 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/resources/peak_gpu_memory_tracker_util.h"
#include "base/rand_util.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace viz {
class PeakGpuMemoryUtilTest
: public ::testing::TestWithParam<SequenceLocation> {
public:
PeakGpuMemoryUtilTest() = default;
~PeakGpuMemoryUtilTest() override = default;
void SetUp() override {}
void TearDown() override {
// Resets counters.
SetSequenceNumberGeneratorForTesting(0, GetParam());
}
};
// Tests that sequence numbers are generated according to SequenceLocation.
// Extreme values are tested below in separate tests.
TEST_P(PeakGpuMemoryUtilTest, NextSequenceNumber) {
uint32_t sequence_num_generator = base::RandInt(1, INT_MAX - 1);
SequenceLocation sequence_location = GetParam();
SetSequenceNumberGeneratorForTesting(sequence_num_generator,
sequence_location);
uint32_t sequence_num_1 = GetNextSequenceNumber(sequence_location);
EXPECT_EQ(GetPeakMemoryUsageRequestLocation(sequence_num_1),
sequence_location);
uint32_t sequence_num_2 = GetNextSequenceNumber(sequence_location);
EXPECT_EQ(GetPeakMemoryUsageRequestLocation(sequence_num_2),
sequence_location);
uint32_t sequence_num_3 = GetNextSequenceNumber(sequence_location);
EXPECT_EQ(GetPeakMemoryUsageRequestLocation(sequence_num_3),
sequence_location);
EXPECT_TRUE(sequence_num_1 != sequence_num_2 &&
sequence_num_1 != sequence_num_3 &&
sequence_num_2 != sequence_num_3);
}
// Tests that sequence numbers are generated according to SequenceLocation with
// sequence_num_generator as zero (extreme value).
TEST_P(PeakGpuMemoryUtilTest, SequenceNumberGeneratorZero) {
uint32_t sequence_num_generator = 0;
SequenceLocation sequence_location = GetParam();
SetSequenceNumberGeneratorForTesting(sequence_num_generator,
sequence_location);
uint32_t sequence_num_1 = GetNextSequenceNumber(sequence_location);
EXPECT_EQ(GetPeakMemoryUsageRequestLocation(sequence_num_1),
sequence_location);
uint32_t sequence_num_2 = GetNextSequenceNumber(sequence_location);
EXPECT_EQ(GetPeakMemoryUsageRequestLocation(sequence_num_2),
sequence_location);
uint32_t sequence_num_3 = GetNextSequenceNumber(sequence_location);
EXPECT_EQ(GetPeakMemoryUsageRequestLocation(sequence_num_3),
sequence_location);
EXPECT_TRUE(sequence_num_1 != sequence_num_2 &&
sequence_num_1 != sequence_num_3 &&
sequence_num_2 != sequence_num_3);
}
// Tests that sequence numbers are generated according to SequenceLocation with
// sequence_num_generator as INT_MAX (extreme value).
TEST_P(PeakGpuMemoryUtilTest, SequenceNumberGeneratorIntMax) {
uint32_t sequence_num_generator = INT_MAX;
SequenceLocation sequence_location = GetParam();
SetSequenceNumberGeneratorForTesting(sequence_num_generator,
sequence_location);
uint32_t sequence_num_1 = GetNextSequenceNumber(sequence_location);
EXPECT_EQ(GetPeakMemoryUsageRequestLocation(sequence_num_1),
sequence_location);
uint32_t sequence_num_2 = GetNextSequenceNumber(sequence_location);
EXPECT_EQ(GetPeakMemoryUsageRequestLocation(sequence_num_2),
sequence_location);
uint32_t sequence_num_3 = GetNextSequenceNumber(sequence_location);
EXPECT_EQ(GetPeakMemoryUsageRequestLocation(sequence_num_3),
sequence_location);
EXPECT_TRUE(sequence_num_1 != sequence_num_2 &&
sequence_num_1 != sequence_num_3 &&
sequence_num_2 != sequence_num_3);
}
INSTANTIATE_TEST_SUITE_P(All,
PeakGpuMemoryUtilTest,
::testing::Values(SequenceLocation::kBrowserProcess,
SequenceLocation::kGpuProcess));
} // namespace viz
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