| /* |
| * Copyright 2019 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 "packet/bit_inserter.h" |
| |
| #include <gtest/gtest.h> |
| #include <memory> |
| |
| #include "os/log.h" |
| |
| using bluetooth::packet::BitInserter; |
| using std::vector; |
| |
| namespace bluetooth { |
| namespace packet { |
| |
| TEST(BitInserterTest, addMoreBits) { |
| std::vector<uint8_t> bytes; |
| BitInserter it(bytes); |
| |
| for (size_t i = 0; i < 9; i++) { |
| it.insert_bits(static_cast<uint8_t>(i), i); |
| } |
| it.insert_bits(static_cast<uint8_t>(0b1010), 4); |
| std::vector<uint8_t> result = {0b00011101 /* 3 2 1 */, 0b00010101 /* 5 4 */, 0b11100011 /* 7 6 */, 0b10000000 /* 8 */, |
| 0b10100000 /* filled with 1010 */}; |
| |
| ASSERT_EQ(result.size(), bytes.size()); |
| for (size_t i = 0; i < bytes.size(); i++) { |
| ASSERT_EQ(result[i], bytes[i]); |
| } |
| } |
| |
| TEST(BitInserterTest, observerTest) { |
| std::vector<uint8_t> bytes; |
| BitInserter it(bytes); |
| std::vector<uint8_t> copy; |
| |
| uint64_t checksum = 0x0123456789abcdef; |
| it.RegisterObserver(ByteObserver([©](uint8_t byte) { copy.push_back(byte); }, [checksum]() { return checksum; })); |
| |
| for (size_t i = 0; i < 9; i++) { |
| it.insert_bits(static_cast<uint8_t>(i), i); |
| } |
| it.insert_bits(static_cast<uint8_t>(0b1010), 4); |
| std::vector<uint8_t> result = {0b00011101 /* 3 2 1 */, 0b00010101 /* 5 4 */, 0b11100011 /* 7 6 */, 0b10000000 /* 8 */, |
| 0b10100000 /* filled with 1010 */}; |
| |
| ASSERT_EQ(result.size(), bytes.size()); |
| for (size_t i = 0; i < bytes.size(); i++) { |
| ASSERT_EQ(result[i], bytes[i]); |
| } |
| |
| ASSERT_EQ(result.size(), copy.size()); |
| for (size_t i = 0; i < copy.size(); i++) { |
| ASSERT_EQ(result[i], copy[i]); |
| } |
| |
| ByteObserver observer = it.UnregisterObserver(); |
| ASSERT_EQ(checksum, observer.GetValue()); |
| uint8_t another_byte = 0xef; |
| it.insert_bits(another_byte, 8); |
| ASSERT_EQ(bytes.back(), another_byte); |
| ASSERT_EQ(result.size() + 1, bytes.size()); |
| ASSERT_EQ(result.size(), copy.size()); |
| } |
| |
| } // namespace packet |
| } // namespace bluetooth |