1 /*
2 * Copyright (c) 2021 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "file_items.h"
17 #include "file_writer.h"
18
19 #include <cstdint>
20
21 #include <utility>
22 #include <vector>
23
24 #include <gtest/gtest.h>
25
26 namespace panda::panda_file::test {
27
TEST(LineNumberProgramItem,EmitSpecialOpcode)28 TEST(LineNumberProgramItem, EmitSpecialOpcode)
29 {
30 LineNumberProgramItem item;
31
32 constexpr int32_t LINE_MAX_INC = LineNumberProgramItem::LINE_RANGE + LineNumberProgramItem::LINE_BASE - 1;
33 constexpr int32_t LINE_MIN_INC = LineNumberProgramItem::LINE_BASE;
34
35 EXPECT_FALSE(item.EmitSpecialOpcode(0, LINE_MAX_INC + 1));
36 EXPECT_FALSE(item.EmitSpecialOpcode(0, LINE_MIN_INC - 1));
37 EXPECT_FALSE(item.EmitSpecialOpcode(100, LINE_MAX_INC));
38
39 std::vector<std::pair<int32_t, uint32_t>> incs = {{1, LINE_MIN_INC}, {2, LINE_MAX_INC}};
40 std::vector<uint8_t> data;
41
42 for (auto [pc_inc, line_inc] : incs) {
43 ASSERT_TRUE(item.EmitSpecialOpcode(pc_inc, line_inc));
44 data.push_back((line_inc - LineNumberProgramItem::LINE_BASE) + (pc_inc * LineNumberProgramItem::LINE_RANGE) +
45 LineNumberProgramItem::OPCODE_BASE);
46 }
47
48 MemoryWriter writer;
49 ASSERT_TRUE(item.Write(&writer));
50
51 EXPECT_EQ(writer.GetData(), data);
52 }
53
54 } // namespace panda::panda_file::test
55