1 /*
2 * Copyright (C) 2021 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 "android-base/hex.h"
18
19 #include <gtest/gtest.h>
20
TEST(hex,empty)21 TEST(hex, empty) {
22 ASSERT_EQ("", android::base::HexString(nullptr, 0));
23 ASSERT_EQ("", android::base::HexString(reinterpret_cast<void*>(int32_t(0)), 0));
24 }
25
TEST(hex,short)26 TEST(hex, short) {
27 const int32_t kShortData = 0xDEADBEEF;
28 ASSERT_EQ("ef", android::base::HexString(&kShortData, 1));
29 ASSERT_EQ("efbe", android::base::HexString(&kShortData, 2));
30 ASSERT_EQ("efbead", android::base::HexString(&kShortData, 3));
31 ASSERT_EQ("efbeadde", android::base::HexString(&kShortData, 4));
32
33 std::vector<uint8_t> bytes;
34 std::string hex;
35
36 hex = android::base::HexString(&kShortData, 1);
37 ASSERT_TRUE(android::base::HexToBytes(hex, &bytes));
38 ASSERT_EQ("ef", android::base::HexString(bytes.data(), bytes.size()));
39
40 hex = android::base::HexString(&kShortData, 2);
41 ASSERT_TRUE(android::base::HexToBytes(hex, &bytes));
42 ASSERT_EQ("efbe", android::base::HexString(bytes.data(), bytes.size()));
43
44 hex = android::base::HexString(&kShortData, 3);
45 ASSERT_TRUE(android::base::HexToBytes(hex, &bytes));
46 ASSERT_EQ("efbead", android::base::HexString(bytes.data(), bytes.size()));
47
48 hex = android::base::HexString(&kShortData, 4);
49 ASSERT_TRUE(android::base::HexToBytes(hex, &bytes));
50 ASSERT_EQ("efbeadde", android::base::HexString(bytes.data(), bytes.size()));
51 }
52
TEST(hex,all)53 TEST(hex, all) {
54 constexpr size_t kSize = 256;
55 uint8_t kLongData[kSize];
56 for (size_t i = 0; i < kSize; i++) {
57 kLongData[i] = i;
58 }
59
60 ASSERT_EQ(
61 "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d"
62 "2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f505152535455565758595a5b"
63 "5c5d5e5f606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f80818283848586878889"
64 "8a8b8c8d8e8f909192939495969798999a9b9c9d9e9fa0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7"
65 "b8b9babbbcbdbebfc0c1c2c3c4c5c6c7c8c9cacbcccdcecfd0d1d2d3d4d5d6d7d8d9dadbdcdddedfe0e1e2e3e4e5"
66 "e6e7e8e9eaebecedeeeff0f1f2f3f4f5f6f7f8f9fafbfcfdfeff",
67 android::base::HexString(&kLongData, kSize));
68
69 std::vector<uint8_t> bytes;
70 std::string hex;
71
72 hex = android::base::HexString(&kLongData, kSize);
73 ASSERT_TRUE(android::base::HexToBytes(hex, &bytes));
74 ASSERT_EQ(
75 "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f202122232425262728292a2b2c2d"
76 "2e2f303132333435363738393a3b3c3d3e3f404142434445464748494a4b4c4d4e4f505152535455565758595a5b"
77 "5c5d5e5f606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f80818283848586878889"
78 "8a8b8c8d8e8f909192939495969798999a9b9c9d9e9fa0a1a2a3a4a5a6a7a8a9aaabacadaeafb0b1b2b3b4b5b6b7"
79 "b8b9babbbcbdbebfc0c1c2c3c4c5c6c7c8c9cacbcccdcecfd0d1d2d3d4d5d6d7d8d9dadbdcdddedfe0e1e2e3e4e5"
80 "e6e7e8e9eaebecedeeeff0f1f2f3f4f5f6f7f8f9fafbfcfdfeff",
81 android::base::HexString(bytes.data(), bytes.size()));
82 }
83
TEST(HexToBytesTest,InvalidCharacters)84 TEST(HexToBytesTest, InvalidCharacters) {
85 std::string hex_string = "12GX";
86 std::vector<uint8_t> bytes;
87
88 ASSERT_FALSE(android::base::HexToBytes(hex_string, &bytes));
89 }
90
TEST(HexToBytesTest,InvalidLength)91 TEST(HexToBytesTest, InvalidLength) {
92 std::string hex_string = "123";
93 std::vector<uint8_t> bytes;
94
95 ASSERT_FALSE(android::base::HexToBytes(hex_string, &bytes));
96 }
97