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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "base/logging.h"
#include <regex>
#include <string>
#include "base/file.h"
#include "base/stringprintf.h"
#include "test_utils.h"
#include <gtest/gtest.h>
#ifdef __ANDROID__
#define HOST_TEST(suite, name) TEST(suite, DISABLED_ ## name)
#else
#define HOST_TEST(suite, name) TEST(suite, name)
#endif
class CapturedStderr {
public:
CapturedStderr() : old_stderr_(-1) {
init();
}
~CapturedStderr() {
reset();
}
int fd() const {
return temp_file_.fd;
}
private:
void init() {
old_stderr_ = dup(STDERR_FILENO);
ASSERT_NE(-1, old_stderr_);
ASSERT_NE(-1, dup2(fd(), STDERR_FILENO));
}
void reset() {
ASSERT_NE(-1, dup2(old_stderr_, STDERR_FILENO));
ASSERT_EQ(0, close(old_stderr_));
}
TemporaryFile temp_file_;
int old_stderr_;
};
TEST(logging, CHECK) {
ASSERT_DEATH(CHECK(false), "Check failed: false ");
CHECK(true);
ASSERT_DEATH(CHECK_EQ(0, 1), "Check failed: 0 == 1 ");
CHECK_EQ(0, 0);
ASSERT_DEATH(CHECK_STREQ("foo", "bar"), R"(Check failed: "foo" == "bar")");
CHECK_STREQ("foo", "foo");
}
std::string make_log_pattern(android::base::LogSeverity severity,
const char* message) {
static const char* log_characters = "VDIWEF";
char log_char = log_characters[severity];
return android::base::StringPrintf(
"%c[[:space:]]+[[:digit:]]+[[:space:]]+[[:digit:]]+ " __FILE__
":[[:digit:]]+] %s",
log_char, message);
}
TEST(logging, LOG) {
ASSERT_DEATH(LOG(FATAL) << "foobar", "foobar");
{
CapturedStderr cap;
LOG(WARNING) << "foobar";
ASSERT_EQ(0, lseek(cap.fd(), SEEK_SET, 0));
std::string output;
android::base::ReadFdToString(cap.fd(), &output);
std::regex message_regex(
make_log_pattern(android::base::WARNING, "foobar"));
ASSERT_TRUE(std::regex_search(output, message_regex));
}
{
CapturedStderr cap;
LOG(INFO) << "foobar";
ASSERT_EQ(0, lseek(cap.fd(), SEEK_SET, 0));
std::string output;
android::base::ReadFdToString(cap.fd(), &output);
std::regex message_regex(
make_log_pattern(android::base::INFO, "foobar"));
ASSERT_TRUE(std::regex_search(output, message_regex));
}
{
CapturedStderr cap;
LOG(DEBUG) << "foobar";
ASSERT_EQ(0, lseek(cap.fd(), SEEK_SET, 0));
std::string output;
android::base::ReadFdToString(cap.fd(), &output);
ASSERT_TRUE(output.empty());
}
{
android::base::ScopedLogSeverity severity(android::base::DEBUG);
CapturedStderr cap;
LOG(DEBUG) << "foobar";
ASSERT_EQ(0, lseek(cap.fd(), SEEK_SET, 0));
std::string output;
android::base::ReadFdToString(cap.fd(), &output);
std::regex message_regex(
make_log_pattern(android::base::DEBUG, "foobar"));
ASSERT_TRUE(std::regex_search(output, message_regex));
}
}
TEST(logging, PLOG) {
{
CapturedStderr cap;
errno = ENOENT;
PLOG(INFO) << "foobar";
ASSERT_EQ(0, lseek(cap.fd(), SEEK_SET, 0));
std::string output;
android::base::ReadFdToString(cap.fd(), &output);
std::regex message_regex(make_log_pattern(
android::base::INFO, "foobar: No such file or directory"));
ASSERT_TRUE(std::regex_search(output, message_regex));
}
}
TEST(logging, UNIMPLEMENTED) {
{
CapturedStderr cap;
errno = ENOENT;
UNIMPLEMENTED(ERROR);
ASSERT_EQ(0, lseek(cap.fd(), SEEK_SET, 0));
std::string output;
android::base::ReadFdToString(cap.fd(), &output);
std::string expected_message =
android::base::StringPrintf("%s unimplemented ", __PRETTY_FUNCTION__);
std::regex message_regex(
make_log_pattern(android::base::ERROR, expected_message.c_str()));
ASSERT_TRUE(std::regex_search(output, message_regex));
}
}
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