| /* |
| * Copyright (C) 2014 The Android Open Source Project |
| * |
| * 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 "dictionary/utils/buffer_with_extendable_buffer.h" |
| |
| #include <gtest/gtest.h> |
| |
| namespace latinime { |
| namespace { |
| |
| const int DEFAULT_MAX_BUFFER_SIZE = 1024; |
| |
| TEST(BufferWithExtendablebufferTest, TestWriteAndRead) { |
| BufferWithExtendableBuffer buffer(DEFAULT_MAX_BUFFER_SIZE); |
| int pos = 0; |
| // 1 byte |
| const uint32_t data_1 = 0xFF; |
| EXPECT_TRUE(buffer.writeUint(data_1, 1 /* size */, pos)); |
| EXPECT_EQ(data_1, buffer.readUint(1, pos)); |
| pos += 1; |
| // 2 byte |
| const uint32_t data_2 = 0xFFFF; |
| EXPECT_TRUE(buffer.writeUint(data_2, 2 /* size */, pos)); |
| EXPECT_EQ(data_2, buffer.readUint(2, pos)); |
| pos += 2; |
| // 3 byte |
| const uint32_t data_3 = 0xFFFFFF; |
| EXPECT_TRUE(buffer.writeUint(data_3, 3 /* size */, pos)); |
| EXPECT_EQ(data_3, buffer.readUint(3, pos)); |
| pos += 3; |
| // 4 byte |
| const uint32_t data_4 = 0xFFFFFFFF; |
| EXPECT_TRUE(buffer.writeUint(data_4, 4 /* size */, pos)); |
| EXPECT_EQ(data_4, buffer.readUint(4, pos)); |
| } |
| |
| TEST(BufferWithExtendablebufferTest, TestExtend) { |
| BufferWithExtendableBuffer buffer(DEFAULT_MAX_BUFFER_SIZE); |
| EXPECT_EQ(0, buffer.getTailPosition()); |
| EXPECT_TRUE(buffer.writeUint(0xFF /* data */, 4 /* size */, 0 /* pos */)); |
| EXPECT_EQ(4, buffer.getTailPosition()); |
| EXPECT_TRUE(buffer.extend(8 /* size */)); |
| EXPECT_EQ(12, buffer.getTailPosition()); |
| EXPECT_TRUE(buffer.writeUint(0xFFFF /* data */, 4 /* size */, 8 /* pos */)); |
| EXPECT_TRUE(buffer.writeUint(0xFF /* data */, 4 /* size */, 0 /* pos */)); |
| } |
| |
| TEST(BufferWithExtendablebufferTest, TestCopy) { |
| BufferWithExtendableBuffer buffer(DEFAULT_MAX_BUFFER_SIZE); |
| EXPECT_TRUE(buffer.writeUint(0xFF /* data */, 4 /* size */, 0 /* pos */)); |
| EXPECT_TRUE(buffer.writeUint(0xFFFF /* data */, 4 /* size */, 4 /* pos */)); |
| BufferWithExtendableBuffer targetBuffer(DEFAULT_MAX_BUFFER_SIZE); |
| EXPECT_TRUE(targetBuffer.copy(&buffer)); |
| EXPECT_EQ(0xFFu, targetBuffer.readUint(4 /* size */, 0 /* pos */)); |
| EXPECT_EQ(0xFFFFu, targetBuffer.readUint(4 /* size */, 4 /* pos */)); |
| } |
| |
| TEST(BufferWithExtendablebufferTest, TestSizeLimit) { |
| BufferWithExtendableBuffer emptyBuffer(0 /* maxAdditionalBufferSize */); |
| EXPECT_FALSE(emptyBuffer.writeUint(0 /* data */, 1 /* size */, 0 /* pos */)); |
| EXPECT_FALSE(emptyBuffer.extend(1 /* size */)); |
| |
| BufferWithExtendableBuffer smallBuffer(4 /* maxAdditionalBufferSize */); |
| EXPECT_TRUE(smallBuffer.writeUint(0 /* data */, 4 /* size */, 0 /* pos */)); |
| EXPECT_FALSE(smallBuffer.writeUint(0 /* data */, 1 /* size */, 4 /* pos */)); |
| |
| EXPECT_TRUE(smallBuffer.copy(&emptyBuffer)); |
| EXPECT_FALSE(emptyBuffer.copy(&smallBuffer)); |
| |
| BufferWithExtendableBuffer buffer(DEFAULT_MAX_BUFFER_SIZE); |
| EXPECT_FALSE(buffer.isNearSizeLimit()); |
| int pos = 0; |
| while (!buffer.isNearSizeLimit()) { |
| EXPECT_TRUE(buffer.writeUintAndAdvancePosition(0 /* data */, 4 /* size */, &pos)); |
| } |
| EXPECT_GT(pos, 0); |
| EXPECT_LE(pos, DEFAULT_MAX_BUFFER_SIZE); |
| } |
| |
| } // namespace |
| } // namespace latinime |