1 /*
2 * Copyright (C) 2022 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 "gtest/gtest.h"
18
19 #include <array>
20
21 #include "berberis/base/bit_util.h"
22 #include "string_offset_table.h"
23
24 namespace nogrod {
25
26 namespace {
27
28 template <typename T>
RunSmokeTest()29 void RunSmokeTest() {
30 using berberis::bit_cast;
31 std::array<T, 10> data = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
32
33 if constexpr (sizeof(T) == 8) {
34 data[0] = uint32_t{0xFFFF'FFFFu};
35 }
36
37 StringOffsetTable table(Buffer{bit_cast<const uint8_t*>(data.data()), data.size() * sizeof(T)});
38
39 EXPECT_EQ(table.GetStringOffset(sizeof(T) * 2, 1), 3U);
40 EXPECT_EQ(table.GetStringOffset(sizeof(T) * 2, 5), 7U);
41 EXPECT_EQ(table.GetStringOffset(sizeof(T) * (data.size() - 1), 0), 9U);
42
43 EXPECT_DEATH((void)table.GetStringOffset(sizeof(T) * 0, 2), "");
44 EXPECT_DEATH((void)table.GetStringOffset(sizeof(T) * (data.size()), 0), "");
45 EXPECT_DEATH((void)table.GetStringOffset(sizeof(T) * 2, data.size() - 2), "");
46
47 // Unaligned access
48 EXPECT_DEATH((void)table.GetStringOffset(sizeof(T) * 2 + 1, 0), "");
49 EXPECT_DEATH((void)table.GetStringOffset(sizeof(T) * 2 + sizeof(T) / 2, 0), "");
50 }
51
TEST(StringOffsetTalbe,Smoke32)52 TEST(StringOffsetTalbe, Smoke32) {
53 RunSmokeTest<uint32_t>();
54 }
55
TEST(StringOffsetTalbe,Smoke64)56 TEST(StringOffsetTalbe, Smoke64) {
57 RunSmokeTest<uint64_t>();
58 }
59
60 } // namespace
61
62 } // namespace nogrod
63