1 /*
2 * Copyright (C) 2015 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 "base/logging.h"
18
19 #include <regex>
20 #include <string>
21
22 #include "base/file.h"
23 #include "base/stringprintf.h"
24 #include "test_utils.h"
25
26 #include <gtest/gtest.h>
27
28 #ifdef __ANDROID__
29 #define HOST_TEST(suite, name) TEST(suite, DISABLED_ ## name)
30 #else
31 #define HOST_TEST(suite, name) TEST(suite, name)
32 #endif
33
34 class CapturedStderr {
35 public:
CapturedStderr()36 CapturedStderr() : old_stderr_(-1) {
37 init();
38 }
39
~CapturedStderr()40 ~CapturedStderr() {
41 reset();
42 }
43
fd() const44 int fd() const {
45 return temp_file_.fd;
46 }
47
48 private:
init()49 void init() {
50 old_stderr_ = dup(STDERR_FILENO);
51 ASSERT_NE(-1, old_stderr_);
52 ASSERT_NE(-1, dup2(fd(), STDERR_FILENO));
53 }
54
reset()55 void reset() {
56 ASSERT_NE(-1, dup2(old_stderr_, STDERR_FILENO));
57 ASSERT_EQ(0, close(old_stderr_));
58 }
59
60 TemporaryFile temp_file_;
61 int old_stderr_;
62 };
63
TEST(logging,CHECK)64 TEST(logging, CHECK) {
65 ASSERT_DEATH(CHECK(false), "Check failed: false ");
66 CHECK(true);
67
68 ASSERT_DEATH(CHECK_EQ(0, 1), "Check failed: 0 == 1 ");
69 CHECK_EQ(0, 0);
70
71 ASSERT_DEATH(CHECK_STREQ("foo", "bar"), R"(Check failed: "foo" == "bar")");
72 CHECK_STREQ("foo", "foo");
73 }
74
make_log_pattern(android::base::LogSeverity severity,const char * message)75 std::string make_log_pattern(android::base::LogSeverity severity,
76 const char* message) {
77 static const char* log_characters = "VDIWEF";
78 char log_char = log_characters[severity];
79 return android::base::StringPrintf(
80 "%c[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+ " __FILE__
81 ":[[:digit:]]+] %s",
82 log_char, message);
83 }
84
TEST(logging,LOG)85 TEST(logging, LOG) {
86 ASSERT_DEATH(LOG(FATAL) << "foobar", "foobar");
87
88 {
89 CapturedStderr cap;
90 LOG(WARNING) << "foobar";
91 ASSERT_EQ(0, lseek(cap.fd(), SEEK_SET, 0));
92
93 std::string output;
94 android::base::ReadFdToString(cap.fd(), &output);
95
96 std::regex message_regex(
97 make_log_pattern(android::base::WARNING, "foobar"));
98 ASSERT_TRUE(std::regex_search(output, message_regex));
99 }
100
101 {
102 CapturedStderr cap;
103 LOG(INFO) << "foobar";
104 ASSERT_EQ(0, lseek(cap.fd(), SEEK_SET, 0));
105
106 std::string output;
107 android::base::ReadFdToString(cap.fd(), &output);
108
109 std::regex message_regex(
110 make_log_pattern(android::base::INFO, "foobar"));
111 ASSERT_TRUE(std::regex_search(output, message_regex));
112 }
113
114 {
115 CapturedStderr cap;
116 LOG(DEBUG) << "foobar";
117 ASSERT_EQ(0, lseek(cap.fd(), SEEK_SET, 0));
118
119 std::string output;
120 android::base::ReadFdToString(cap.fd(), &output);
121 ASSERT_TRUE(output.empty());
122 }
123
124 {
125 android::base::ScopedLogSeverity severity(android::base::DEBUG);
126 CapturedStderr cap;
127 LOG(DEBUG) << "foobar";
128 ASSERT_EQ(0, lseek(cap.fd(), SEEK_SET, 0));
129
130 std::string output;
131 android::base::ReadFdToString(cap.fd(), &output);
132
133 std::regex message_regex(
134 make_log_pattern(android::base::DEBUG, "foobar"));
135 ASSERT_TRUE(std::regex_search(output, message_regex));
136 }
137 }
138
TEST(logging,PLOG)139 TEST(logging, PLOG) {
140 {
141 CapturedStderr cap;
142 errno = ENOENT;
143 PLOG(INFO) << "foobar";
144 ASSERT_EQ(0, lseek(cap.fd(), SEEK_SET, 0));
145
146 std::string output;
147 android::base::ReadFdToString(cap.fd(), &output);
148
149 std::regex message_regex(make_log_pattern(
150 android::base::INFO, "foobar: No such file or directory"));
151 ASSERT_TRUE(std::regex_search(output, message_regex));
152 }
153 }
154
TEST(logging,UNIMPLEMENTED)155 TEST(logging, UNIMPLEMENTED) {
156 {
157 CapturedStderr cap;
158 errno = ENOENT;
159 UNIMPLEMENTED(ERROR);
160 ASSERT_EQ(0, lseek(cap.fd(), SEEK_SET, 0));
161
162 std::string output;
163 android::base::ReadFdToString(cap.fd(), &output);
164
165 std::string expected_message =
166 android::base::StringPrintf("%s unimplemented ", __PRETTY_FUNCTION__);
167 std::regex message_regex(
168 make_log_pattern(android::base::ERROR, expected_message.c_str()));
169 ASSERT_TRUE(std::regex_search(output, message_regex));
170 }
171 }
172