1 /*
2  * Copyright (C) 2016 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 <android-base/file.h>
20 #include <android-base/test_utils.h>
21 
22 #include "command.h"
23 #include "get_test_data.h"
24 
25 static std::unique_ptr<Command> ReportSampleCmd() {
26   return CreateCommandInstance("report-sample");
27 }
28 
29 TEST(cmd_report_sample, text) {
30   ASSERT_TRUE(
31       ReportSampleCmd()->Run({"-i", GetTestData(PERF_DATA_WITH_SYMBOLS)}));
32 }
33 
34 TEST(cmd_report_sample, output_option) {
35   TemporaryFile tmpfile;
36   ASSERT_TRUE(ReportSampleCmd()->Run(
37       {"-i", GetTestData(PERF_DATA_WITH_SYMBOLS), "-o", tmpfile.path}));
38 }
39 
40 TEST(cmd_report_sample, show_callchain_option) {
41   TemporaryFile tmpfile;
42   ASSERT_TRUE(ReportSampleCmd()->Run({"-i", GetTestData(CALLGRAPH_FP_PERF_DATA),
43                                       "-o", tmpfile.path, "--show-callchain"}));
44 }
45 
46 TEST(cmd_report_sample, protobuf_option) {
47   TemporaryFile tmpfile;
48   TemporaryFile tmpfile2;
49   ASSERT_TRUE(ReportSampleCmd()->Run({"-i", GetTestData(PERF_DATA_WITH_SYMBOLS),
50                                       "-o", tmpfile.path, "--protobuf"}));
51   ASSERT_TRUE(ReportSampleCmd()->Run(
52       {"--dump-protobuf-report", tmpfile.path, "-o", tmpfile2.path}));
53   std::string data;
54   ASSERT_TRUE(android::base::ReadFileToString(tmpfile2.path, &data));
55   ASSERT_NE(data.find("file:"), std::string::npos);
56 }
57 
58 TEST(cmd_report_sample, no_skipped_file_id) {
59   TemporaryFile tmpfile;
60   TemporaryFile tmpfile2;
61   ASSERT_TRUE(ReportSampleCmd()->Run({"-i", GetTestData(PERF_DATA_WITH_WRONG_IP_IN_CALLCHAIN),
62                                      "-o", tmpfile.path, "--protobuf"}));
63   ASSERT_TRUE(ReportSampleCmd()->Run({"--dump-protobuf-report", tmpfile.path, "-o",
64                                       tmpfile2.path}));
65   // If wrong ips in callchain are omitted, "unknown" file path will not be generated.
66   std::string data;
67   ASSERT_TRUE(android::base::ReadFileToString(tmpfile2.path, &data));
68   ASSERT_EQ(data.find("unknown"), std::string::npos);
69 }
70 
71 TEST(cmd_report_sample, sample_has_event_count) {
72   TemporaryFile tmpfile;
73   TemporaryFile tmpfile2;
74   ASSERT_TRUE(ReportSampleCmd()->Run({"-i", GetTestData(PERF_DATA_WITH_SYMBOLS),
75                                       "-o", tmpfile.path, "--protobuf"}));
76   ASSERT_TRUE(ReportSampleCmd()->Run(
77       {"--dump-protobuf-report", tmpfile.path, "-o", tmpfile2.path}));
78   std::string data;
79   ASSERT_TRUE(android::base::ReadFileToString(tmpfile2.path, &data));
80   ASSERT_NE(data.find("event_count:"), std::string::npos);
81 }
82 
83 TEST(cmd_report_sample, has_thread_record) {
84   TemporaryFile tmpfile;
85   TemporaryFile tmpfile2;
86   ASSERT_TRUE(ReportSampleCmd()->Run({"-i", GetTestData(PERF_DATA_WITH_SYMBOLS),
87                                       "-o", tmpfile.path, "--protobuf"}));
88   ASSERT_TRUE(ReportSampleCmd()->Run(
89       {"--dump-protobuf-report", tmpfile.path, "-o", tmpfile2.path}));
90   std::string data;
91   ASSERT_TRUE(android::base::ReadFileToString(tmpfile2.path, &data));
92   ASSERT_NE(data.find("thread:"), std::string::npos);
93 }
94 
95 TEST(cmd_report_sample, trace_offcpu) {
96   TemporaryFile tmpfile;
97   TemporaryFile tmpfile2;
98   ASSERT_TRUE(ReportSampleCmd()->Run({"-i", GetTestData(PERF_DATA_WITH_TRACE_OFFCPU),
99                                       "-o", tmpfile.path, "--protobuf"}));
100   ASSERT_TRUE(ReportSampleCmd()->Run(
101       {"--dump-protobuf-report", tmpfile.path, "-o", tmpfile2.path}));
102   std::string data;
103   ASSERT_TRUE(android::base::ReadFileToString(tmpfile2.path, &data));
104   ASSERT_NE(data.find("event_type: sched:sched_switch"), std::string::npos);
105 }
106 
107 TEST(cmd_report_sample, have_clear_callchain_end_in_protobuf_output) {
108   TemporaryFile tmpfile;
109   TemporaryFile tmpfile2;
110   ASSERT_TRUE(ReportSampleCmd()->Run({"-i", GetTestData(PERF_DATA_WITH_TRACE_OFFCPU),
111                                       "--show-callchain", "-o", tmpfile.path, "--protobuf"}));
112   ASSERT_TRUE(ReportSampleCmd()->Run(
113       {"--dump-protobuf-report", tmpfile.path, "-o", tmpfile2.path}));
114   std::string data;
115   ASSERT_TRUE(android::base::ReadFileToString(tmpfile2.path, &data));
116   ASSERT_NE(data.find("__libc_init"), std::string::npos);
117   ASSERT_EQ(data.find("_start_main"), std::string::npos);
118 }
119