1 /*
2  * Copyright 2019 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #include "packet/raw_builder.h"
18 
19 #include <gtest/gtest.h>
20 #include <forward_list>
21 #include <memory>
22 
23 #include "hci/address.h"
24 
25 using bluetooth::hci::Address;
26 using bluetooth::packet::BitInserter;
27 using std::vector;
28 
29 namespace {
30 vector<uint8_t> count = {
31     0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
32     0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
33 };
34 
35 }  // namespace
36 
37 namespace bluetooth {
38 namespace packet {
39 
40 class RawBuilderTest : public ::testing::Test {
41  public:
42   RawBuilderTest() = default;
43   ~RawBuilderTest() = default;
44 };
45 
46 TEST(RawBuilderTest, buildCountTest) {
47   std::unique_ptr<RawBuilder> count_builder = std::make_unique<RawBuilder>();
48   ASSERT_EQ(0u, count_builder->size());
49   count_builder->AddOctets8(0x0706050403020100);
50   count_builder->AddOctets4(0x0b0a0908);
51   count_builder->AddOctets2(0x0d0c);
52   count_builder->AddOctets1(0x0e);
53   count_builder->AddOctets1(0x0f);
54   count_builder->AddAddress(Address({0x10, 0x11, 0x12, 0x13, 0x14, 0x15}));
55   std::vector<uint8_t> count_subset(count.begin() + 0x16, count.end());
56   count_builder->AddOctets(count_subset);
57 
58   ASSERT_EQ(count.size(), count_builder->size());
59 
60   std::vector<uint8_t> packet;
61   BitInserter it(packet);
62 
63   count_builder->Serialize(it);
64 
65   ASSERT_EQ(count, packet);
66 }
67 
68 TEST(RawBuilderTest, buildStartingWithVector) {
69   std::vector<uint8_t> count_first(count.begin(), count.begin() + 0x8);
70   std::unique_ptr<RawBuilder> count_builder = std::make_unique<RawBuilder>(count_first);
71   count_builder->AddOctets4(0x0b0a0908);
72   count_builder->AddOctets2(0x0d0c);
73   count_builder->AddOctets1(0x0e);
74   count_builder->AddOctets1(0x0f);
75   count_builder->AddOctets8(0x1716151413121110);
76   std::vector<uint8_t> count_last(count.begin() + 0x18, count.end());
77   count_builder->AddOctets(count_last);
78 
79   ASSERT_EQ(count.size(), count_builder->size());
80 
81   std::vector<uint8_t> packet;
82   BitInserter it(packet);
83 
84   count_builder->Serialize(it);
85 
86   ASSERT_EQ(count, packet);
87 }
88 
89 TEST(RawBuilderTest, testMaxBytes) {
90   const size_t kMaxBytes = count.size();
91   std::unique_ptr<RawBuilder> count_builder = std::make_unique<RawBuilder>(kMaxBytes);
92   ASSERT_TRUE(count_builder->AddOctets(count));
93   ASSERT_FALSE(count_builder->AddOctets4(0x0b0a0908));
94   ASSERT_FALSE(count_builder->AddOctets2(0x0d0c));
95   ASSERT_FALSE(count_builder->AddOctets1(0x0e));
96   ASSERT_FALSE(count_builder->AddOctets1(0x0f));
97   ASSERT_FALSE(count_builder->AddOctets8(0x1716151413121110));
98   std::vector<uint8_t> count_last(count.begin() + 0x18, count.end());
99   ASSERT_FALSE(count_builder->AddOctets(count_last));
100 
101   ASSERT_EQ(count.size(), count_builder->size());
102 
103   std::vector<uint8_t> packet;
104   BitInserter it(packet);
105 
106   count_builder->Serialize(it);
107 
108   ASSERT_EQ(count, packet);
109 }
110 
111 }  // namespace packet
112 }  // namespace bluetooth
113