1 /*
2 * Copyright (c) 2025 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 <gtest/gtest.h>
17 #include <string>
18 #include <unistd.h>
19 #include <vector>
20
21 #include "dfx_buffer_writer.h"
22 #include "dfx_cutil.h"
23 #include "dfx_define.h"
24 #include "dfx_test_util.h"
25 #include "dfx_util.h"
26 #include "decorative_dump_info.h"
27
28 using namespace OHOS::HiviewDFX;
29 using namespace testing::ext;
30 using namespace std;
31
32 namespace OHOS {
33 namespace HiviewDFX {
34 class MapsTest : public testing::Test {
35 public:
36 static void SetUpTestCase(void);
TearDownTestCase(void)37 static void TearDownTestCase(void) {}
38 void SetUp();
TearDown()39 void TearDown() {}
40 static int WriteLogFunc(int32_t fd, const char *buf, size_t len);
41 static std::string result;
42 };
43 } // namespace HiviewDFX
44 } // namespace OHOS
45
46 std::string MapsTest::result = "";
47
SetUpTestCase(void)48 void MapsTest::SetUpTestCase(void)
49 {
50 result = "";
51 }
52
SetUp(void)53 void MapsTest::SetUp(void)
54 {
55 DfxBufferWriter::GetInstance().SetWriteFunc(MapsTest::WriteLogFunc);
56 }
57
WriteLogFunc(int32_t fd,const char * buf,size_t len)58 int MapsTest::WriteLogFunc(int32_t fd, const char *buf, size_t len)
59 {
60 MapsTest::result.append(std::string(buf, len));
61 return 0;
62 }
63
64 namespace {
65 /**
66 * @tc.name: MapsTest001
67 * @tc.desc: test print maps
68 * @tc.type: FUNC
69 */
70 HWTEST_F(MapsTest, MapsTest001, TestSize.Level2)
71 {
72 GTEST_LOG_(INFO) << "MapsTest001: start.";
73 pid_t pid = fork();
74 if (pid < 0) {
75 GTEST_LOG_(ERROR) << "Failed to fork new test process.";
76 } else if (pid == 0) {
77 sleep(3); // 3 : sleep 3 seconds
78 exit(0);
79 }
80 pid_t tid = pid;
81 pid_t nsPid = pid;
82 ProcessDumpRequest request = {
83 .type = ProcessDumpType::DUMP_TYPE_CPP_CRASH,
84 .tid = tid,
85 .pid = pid,
86 .nsPid = pid,
87 };
88 DfxProcess process;
89 process.InitProcessInfo(pid, nsPid, getuid(), "");
90 process.SetVmPid(pid);
91 process.InitKeyThread(request);
92 auto regs = DfxRegs::CreateRemoteRegs(pid); // can not get context, so create regs self
93 process.SetFaultThreadRegisters(regs);
94 Unwinder unwinder(pid, nsPid, request.type == ProcessDumpType::DUMP_TYPE_CPP_CRASH);
95 unwinder.SetRegs(regs);
96 unwinder.UnwindRemote(tid, true);
97 process.GetKeyThread()->SetFrames(unwinder.GetFrames());
98 Maps maps;
99 maps.Print(process, request, unwinder);
100 std::vector<std::string> keyWords = {
101 "Maps:",
102 "test_processdump",
103 };
104 for (const std::string& keyWord : keyWords) {
105 ASSERT_TRUE(CheckContent(result, keyWord, true));
106 }
107 std::string prevResult = result;
108 result = "";
109 CrashLogConfig crashLogConfig = {
110 .simplifyVmaPrinting = true,
111 };
112 process.SetCrashLogConfig(crashLogConfig);
113 maps.Print(process, request, unwinder);
114 for (const std::string& keyWord : keyWords) {
115 ASSERT_TRUE(CheckContent(result, keyWord, true));
116 }
117 ASSERT_GT(prevResult.size(), result.size());
118 process.Detach();
119 GTEST_LOG_(INFO) << "MapsTest001: end.";
120 }
121 }
122