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//
// Copyright 2022 The Abseil Authors.
//
// 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
//
//
// 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 "absl/log/internal/flags.h"
#include <string>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "absl/base/attributes.h"
#include "absl/base/log_severity.h"
#include "absl/flags/flag.h"
#include "absl/flags/reflection.h"
#include "absl/log/globals.h"
#include "absl/log/internal/test_helpers.h"
#include "absl/log/internal/test_matchers.h"
#include "absl/log/log.h"
#include "absl/log/scoped_mock_log.h"
#include "absl/strings/str_cat.h"
namespace {
using ::absl::log_internal::TextMessage;
using ::testing::HasSubstr;
using ::testing::Not;
auto* test_env ABSL_ATTRIBUTE_UNUSED = ::testing::AddGlobalTestEnvironment(
new absl::log_internal::LogTestEnvironment);
constexpr static absl::LogSeverityAtLeast DefaultStderrThreshold() {
return absl::LogSeverityAtLeast::kError;
}
class LogFlagsTest : public ::testing::Test {
protected:
absl::FlagSaver flag_saver_;
};
// This test is disabled because it adds order dependency to the test suite.
// This order dependency is currently not fixable due to the way the
// stderrthreshold global value is out of sync with the stderrthreshold flag.
TEST_F(LogFlagsTest, DISABLED_StderrKnobsDefault) {
EXPECT_EQ(absl::StderrThreshold(), DefaultStderrThreshold());
}
TEST_F(LogFlagsTest, SetStderrThreshold) {
absl::SetFlag(&FLAGS_stderrthreshold,
static_cast<int>(absl::LogSeverityAtLeast::kInfo));
EXPECT_EQ(absl::StderrThreshold(), absl::LogSeverityAtLeast::kInfo);
absl::SetFlag(&FLAGS_stderrthreshold,
static_cast<int>(absl::LogSeverityAtLeast::kError));
EXPECT_EQ(absl::StderrThreshold(), absl::LogSeverityAtLeast::kError);
}
TEST_F(LogFlagsTest, SetMinLogLevel) {
absl::SetFlag(&FLAGS_minloglevel,
static_cast<int>(absl::LogSeverityAtLeast::kError));
EXPECT_EQ(absl::MinLogLevel(), absl::LogSeverityAtLeast::kError);
absl::log_internal::ScopedMinLogLevel scoped_min_log_level(
absl::LogSeverityAtLeast::kWarning);
EXPECT_EQ(absl::GetFlag(FLAGS_minloglevel),
static_cast<int>(absl::LogSeverityAtLeast::kWarning));
}
TEST_F(LogFlagsTest, PrependLogPrefix) {
absl::SetFlag(&FLAGS_log_prefix, false);
EXPECT_EQ(absl::ShouldPrependLogPrefix(), false);
absl::EnableLogPrefix(true);
EXPECT_EQ(absl::GetFlag(FLAGS_log_prefix), true);
}
TEST_F(LogFlagsTest, EmptyBacktraceAtFlag) {
absl::SetMinLogLevel(absl::LogSeverityAtLeast::kInfo);
absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected);
EXPECT_CALL(test_sink, Send(TextMessage(Not(HasSubstr("(stacktrace:")))));
test_sink.StartCapturingLogs();
absl::SetFlag(&FLAGS_log_backtrace_at, "");
LOG(INFO) << "hello world";
}
TEST_F(LogFlagsTest, BacktraceAtNonsense) {
absl::SetMinLogLevel(absl::LogSeverityAtLeast::kInfo);
absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected);
EXPECT_CALL(test_sink, Send(TextMessage(Not(HasSubstr("(stacktrace:")))));
test_sink.StartCapturingLogs();
absl::SetFlag(&FLAGS_log_backtrace_at, "gibberish");
LOG(INFO) << "hello world";
}
TEST_F(LogFlagsTest, BacktraceAtWrongFile) {
absl::SetMinLogLevel(absl::LogSeverityAtLeast::kInfo);
const int log_line = __LINE__ + 1;
auto do_log = [] { LOG(INFO) << "hello world"; };
absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected);
EXPECT_CALL(test_sink, Send(TextMessage(Not(HasSubstr("(stacktrace:")))));
test_sink.StartCapturingLogs();
absl::SetFlag(&FLAGS_log_backtrace_at,
absl::StrCat("some_other_file.cc:", log_line));
do_log();
}
TEST_F(LogFlagsTest, BacktraceAtWrongLine) {
absl::SetMinLogLevel(absl::LogSeverityAtLeast::kInfo);
const int log_line = __LINE__ + 1;
auto do_log = [] { LOG(INFO) << "hello world"; };
absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected);
EXPECT_CALL(test_sink, Send(TextMessage(Not(HasSubstr("(stacktrace:")))));
test_sink.StartCapturingLogs();
absl::SetFlag(&FLAGS_log_backtrace_at,
absl::StrCat("flags_test.cc:", log_line + 1));
do_log();
}
TEST_F(LogFlagsTest, BacktraceAtWholeFilename) {
absl::SetMinLogLevel(absl::LogSeverityAtLeast::kInfo);
const int log_line = __LINE__ + 1;
auto do_log = [] { LOG(INFO) << "hello world"; };
absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected);
EXPECT_CALL(test_sink, Send(TextMessage(Not(HasSubstr("(stacktrace:")))));
test_sink.StartCapturingLogs();
absl::SetFlag(&FLAGS_log_backtrace_at, absl::StrCat(__FILE__, ":", log_line));
do_log();
}
TEST_F(LogFlagsTest, BacktraceAtNonmatchingSuffix) {
absl::SetMinLogLevel(absl::LogSeverityAtLeast::kInfo);
const int log_line = __LINE__ + 1;
auto do_log = [] { LOG(INFO) << "hello world"; };
absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected);
EXPECT_CALL(test_sink, Send(TextMessage(Not(HasSubstr("(stacktrace:")))));
test_sink.StartCapturingLogs();
absl::SetFlag(&FLAGS_log_backtrace_at,
absl::StrCat("flags_test.cc:", log_line, "gibberish"));
do_log();
}
TEST_F(LogFlagsTest, LogsBacktrace) {
absl::SetMinLogLevel(absl::LogSeverityAtLeast::kInfo);
const int log_line = __LINE__ + 1;
auto do_log = [] { LOG(INFO) << "hello world"; };
absl::ScopedMockLog test_sink(absl::MockLogDefault::kDisallowUnexpected);
testing::InSequence seq;
EXPECT_CALL(test_sink, Send(TextMessage(HasSubstr("(stacktrace:"))));
EXPECT_CALL(test_sink, Send(TextMessage(Not(HasSubstr("(stacktrace:")))));
test_sink.StartCapturingLogs();
absl::SetFlag(&FLAGS_log_backtrace_at,
absl::StrCat("flags_test.cc:", log_line));
do_log();
absl::SetFlag(&FLAGS_log_backtrace_at, "");
do_log();
}
} // namespace