| // Copyright 2021 The libgav1 Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "src/utils/stack.h" |
| |
| #include <cstdint> |
| #include <utility> |
| |
| #include "gtest/gtest.h" |
| |
| namespace libgav1 { |
| namespace { |
| |
| constexpr int kStackSize = 8; |
| |
| TEST(StackTest, SimpleType) { |
| Stack<int, kStackSize> stack; |
| EXPECT_TRUE(stack.Empty()); |
| |
| for (int i = 0; i < kStackSize; ++i) { |
| stack.Push(i); |
| EXPECT_FALSE(stack.Empty()); |
| } |
| |
| for (int i = kStackSize - 1; i >= 0; --i) { |
| EXPECT_EQ(stack.Pop(), i); |
| } |
| EXPECT_TRUE(stack.Empty()); |
| } |
| |
| TEST(StackTest, LargeStruct) { |
| struct LargeMoveOnlyStruct { |
| LargeMoveOnlyStruct() = default; |
| // Move only. |
| LargeMoveOnlyStruct(LargeMoveOnlyStruct&& other) = default; |
| LargeMoveOnlyStruct& operator=(LargeMoveOnlyStruct&& other) = default; |
| |
| int32_t array1[1000]; |
| uint64_t array2[2000]; |
| }; |
| |
| Stack<LargeMoveOnlyStruct, kStackSize> stack; |
| EXPECT_TRUE(stack.Empty()); |
| |
| LargeMoveOnlyStruct large_move_only_struct[kStackSize]; |
| for (int i = 0; i < kStackSize; ++i) { |
| LargeMoveOnlyStruct& l = large_move_only_struct[i]; |
| l.array1[0] = i; |
| l.array2[0] = i; |
| stack.Push(std::move(l)); |
| EXPECT_FALSE(stack.Empty()); |
| } |
| |
| for (int i = kStackSize - 1; i >= 0; --i) { |
| LargeMoveOnlyStruct l = stack.Pop(); |
| EXPECT_EQ(l.array1[0], i); |
| EXPECT_EQ(l.array2[0], i); |
| } |
| EXPECT_TRUE(stack.Empty()); |
| } |
| |
| } // namespace |
| } // namespace libgav1 |