82 lines
2.1 KiB
C++
82 lines
2.1 KiB
C++
/*
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* Copyright 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include <ui/DisplayId.h>
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#include <algorithm>
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#include <iterator>
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#include <vector>
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#include "DisplayIdGenerator.h"
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namespace android {
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template <typename Id>
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void testGenerateId() {
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DisplayIdGenerator<Id> generator;
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std::vector<std::optional<Id>> ids;
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std::generate_n(std::back_inserter(ids), 10, [&] { return generator.generateId(); });
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// All IDs should be different.
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for (auto it = ids.begin(); it != ids.end(); ++it) {
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EXPECT_TRUE(*it);
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for (auto dup = it + 1; dup != ids.end(); ++dup) {
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EXPECT_NE(*it, *dup);
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}
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}
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}
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TEST(DisplayIdGeneratorTest, generateGpuVirtualDisplayId) {
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testGenerateId<GpuVirtualDisplayId>();
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}
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TEST(DisplayIdGeneratorTest, generateHalVirtualDisplayId) {
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testGenerateId<HalVirtualDisplayId>();
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}
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TEST(DisplayIdGeneratorTest, releaseId) {
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constexpr size_t kMaxIdsCount = 5;
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DisplayIdGenerator<GpuVirtualDisplayId> generator(kMaxIdsCount);
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const auto id = generator.generateId();
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EXPECT_TRUE(id);
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for (size_t i = 1; i < kMaxIdsCount; i++) {
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EXPECT_TRUE(generator.generateId());
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}
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EXPECT_FALSE(generator.generateId());
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generator.releaseId(*id);
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EXPECT_TRUE(generator.generateId());
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}
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TEST(DisplayIdGeneratorTest, maxIdsCount) {
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constexpr size_t kMaxIdsCount = 5;
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DisplayIdGenerator<GpuVirtualDisplayId> generator(kMaxIdsCount);
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for (size_t i = 0; i < kMaxIdsCount; i++) {
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EXPECT_TRUE(generator.generateId());
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}
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EXPECT_FALSE(generator.generateId());
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}
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} // namespace android
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