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https://github.com/dolphin-emu/dolphin
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115 lines
2.5 KiB
C++
115 lines
2.5 KiB
C++
// Copyright 2014 Dolphin Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include <gtest/gtest.h>
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#include "Common/FixedSizeQueue.h"
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TEST(FixedSizeQueue, Simple)
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{
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Common::FixedSizeQueue<int, 5> q;
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EXPECT_EQ(0u, q.size());
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q.push(0);
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q.push(1);
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q.push(2);
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q.push(3);
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q.push(4);
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for (int i = 0; i < 1000; ++i)
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{
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EXPECT_EQ(i, q.front());
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EXPECT_EQ(i, q.pop_front());
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q.push(i + 5);
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}
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EXPECT_EQ(1000, q.pop_front());
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EXPECT_EQ(1001, q.pop_front());
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EXPECT_EQ(1002, q.pop_front());
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EXPECT_EQ(1003, q.pop_front());
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EXPECT_EQ(1004, q.pop_front());
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EXPECT_EQ(0u, q.size());
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}
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TEST(FixedSizeQueue, RingBuffer)
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{
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// Testing if queue works when used as a ring buffer
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Common::FixedSizeQueue<int, 5> q;
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EXPECT_EQ(0u, q.size());
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q.push(0);
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q.push(1);
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q.push(2);
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q.push(3);
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q.push(4);
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q.push(5);
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EXPECT_EQ(5u, q.size());
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EXPECT_EQ(1, q.pop_front());
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EXPECT_EQ(4u, q.size());
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}
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// Local classes cannot have static fields,
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// therefore this has to be declared in global scope.
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class NonTrivialTypeTestData
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{
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public:
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static inline int num_objects = 0;
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static inline int total_constructed = 0;
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static inline int default_constructed = 0;
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static inline int total_destructed = 0;
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NonTrivialTypeTestData()
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{
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num_objects++;
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total_constructed++;
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default_constructed++;
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}
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NonTrivialTypeTestData(int /*val*/)
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{
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num_objects++;
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total_constructed++;
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}
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~NonTrivialTypeTestData()
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{
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num_objects--;
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total_destructed++;
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}
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};
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TEST(FixedSizeQueue, NonTrivialTypes)
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{
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// Testing if construction/destruction of non-trivial types happens as expected
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Common::FixedSizeQueue<NonTrivialTypeTestData, 2> q;
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EXPECT_EQ(0u, q.size());
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EXPECT_EQ(2, NonTrivialTypeTestData::num_objects);
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EXPECT_EQ(2, NonTrivialTypeTestData::total_constructed);
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EXPECT_EQ(2, NonTrivialTypeTestData::default_constructed);
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EXPECT_EQ(0, NonTrivialTypeTestData::total_destructed);
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q.emplace(4);
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q.emplace(6);
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q.emplace(8);
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EXPECT_EQ(2, NonTrivialTypeTestData::num_objects);
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EXPECT_EQ(2 + 3, NonTrivialTypeTestData::total_constructed);
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EXPECT_EQ(2, NonTrivialTypeTestData::default_constructed);
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EXPECT_EQ(3, NonTrivialTypeTestData::total_destructed);
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EXPECT_EQ(2u, q.size());
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q.pop();
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q.pop();
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EXPECT_EQ(2, NonTrivialTypeTestData::num_objects);
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EXPECT_EQ(2 + 3 + 2, NonTrivialTypeTestData::total_constructed);
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EXPECT_EQ(2 + 2, NonTrivialTypeTestData::default_constructed);
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EXPECT_EQ(3 + 2, NonTrivialTypeTestData::total_destructed);
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EXPECT_EQ(0u, q.size());
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}
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