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// Copyright 2023 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
//
// https://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 "absl/log/vlog_is_on.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "absl/base/log_severity.h"
#include "absl/flags/flag.h"
#include "absl/log/flags.h"
#include "absl/log/log.h"
#include "absl/log/scoped_mock_log.h"
#include "absl/types/optional.h"
namespace {
using ::testing::_;
absl::optional<int> MaxLogVerbosity() {
#ifdef ABSL_MAX_VLOG_VERBOSITY
return ABSL_MAX_VLOG_VERBOSITY;
#else
return absl::nullopt;
#endif
}
absl::optional<int> MinLogLevel() {
#ifdef ABSL_MIN_LOG_LEVEL
return static_cast<int>(ABSL_MIN_LOG_LEVEL);
#else
return absl::nullopt;
#endif
}
TEST(VLogIsOn, GlobalWorksWithoutMaxVerbosityAndMinLogLevel) {
if (MaxLogVerbosity().has_value() || MinLogLevel().has_value()) {
GTEST_SKIP();
}
absl::SetGlobalVLogLevel(3);
absl::ScopedMockLog log(absl::MockLogDefault::kDisallowUnexpected);
EXPECT_CALL(log, Log(absl::LogSeverity::kInfo, _, "important"));
log.StartCapturingLogs();
VLOG(3) << "important";
VLOG(4) << "spam";
}
TEST(VLogIsOn, FileWorksWithoutMaxVerbosityAndMinLogLevel) {
if (MaxLogVerbosity().has_value() || MinLogLevel().has_value()) {
GTEST_SKIP();
}
absl::SetVLogLevel("vlog_is_on_test", 3);
absl::ScopedMockLog log(absl::MockLogDefault::kDisallowUnexpected);
EXPECT_CALL(log, Log(absl::LogSeverity::kInfo, _, "important"));
log.StartCapturingLogs();
VLOG(3) << "important";
VLOG(4) << "spam";
}
TEST(VLogIsOn, PatternWorksWithoutMaxVerbosityAndMinLogLevel) {
if (MaxLogVerbosity().has_value() || MinLogLevel().has_value()) {
GTEST_SKIP();
}
absl::SetVLogLevel("vlog_is_on*", 3);
absl::ScopedMockLog log(absl::MockLogDefault::kDisallowUnexpected);
EXPECT_CALL(log, Log(absl::LogSeverity::kInfo, _, "important"));
log.StartCapturingLogs();
VLOG(3) << "important";
VLOG(4) << "spam";
}
TEST(VLogIsOn, GlobalDoesNotFilterBelowMaxVerbosity) {
if (!MaxLogVerbosity().has_value() || *MaxLogVerbosity() < 2) {
GTEST_SKIP();
}
// Set an arbitrary high value to avoid filtering VLOGs in tests by default.
absl::SetGlobalVLogLevel(1000);
absl::ScopedMockLog log(absl::MockLogDefault::kDisallowUnexpected);
EXPECT_CALL(log, Log(absl::LogSeverity::kInfo, _, "asdf"));
log.StartCapturingLogs();
VLOG(2) << "asdf";
}
TEST(VLogIsOn, FileDoesNotFilterBelowMaxVerbosity) {
if (!MaxLogVerbosity().has_value() || *MaxLogVerbosity() < 2) {
GTEST_SKIP();
}
// Set an arbitrary high value to avoid filtering VLOGs in tests by default.
absl::SetVLogLevel("vlog_is_on_test", 1000);
absl::ScopedMockLog log(absl::MockLogDefault::kDisallowUnexpected);
EXPECT_CALL(log, Log(absl::LogSeverity::kInfo, _, "asdf"));
log.StartCapturingLogs();
VLOG(2) << "asdf";
}
TEST(VLogIsOn, PatternDoesNotFilterBelowMaxVerbosity) {
if (!MaxLogVerbosity().has_value() || *MaxLogVerbosity() < 2) {
GTEST_SKIP();
}
// Set an arbitrary high value to avoid filtering VLOGs in tests by default.
absl::SetVLogLevel("vlog_is_on*", 1000);
absl::ScopedMockLog log(absl::MockLogDefault::kDisallowUnexpected);
EXPECT_CALL(log, Log(absl::LogSeverity::kInfo, _, "asdf"));
log.StartCapturingLogs();
VLOG(2) << "asdf";
}
TEST(VLogIsOn, GlobalFiltersAboveMaxVerbosity) {
if (!MaxLogVerbosity().has_value() || *MaxLogVerbosity() >= 4) {
GTEST_SKIP();
}
// Set an arbitrary high value to avoid filtering VLOGs in tests by default.
absl::SetGlobalVLogLevel(1000);
absl::ScopedMockLog log(absl::MockLogDefault::kDisallowUnexpected);
log.StartCapturingLogs();
VLOG(4) << "dfgh";
}
TEST(VLogIsOn, FileFiltersAboveMaxVerbosity) {
if (!MaxLogVerbosity().has_value() || *MaxLogVerbosity() >= 4) {
GTEST_SKIP();
}
// Set an arbitrary high value to avoid filtering VLOGs in tests by default.
absl::SetVLogLevel("vlog_is_on_test", 1000);
absl::ScopedMockLog log(absl::MockLogDefault::kDisallowUnexpected);
log.StartCapturingLogs();
VLOG(4) << "dfgh";
}
TEST(VLogIsOn, PatternFiltersAboveMaxVerbosity) {
if (!MaxLogVerbosity().has_value() || *MaxLogVerbosity() >= 4) {
GTEST_SKIP();
}
// Set an arbitrary high value to avoid filtering VLOGs in tests by default.
absl::SetVLogLevel("vlog_is_on*", 1000);
absl::ScopedMockLog log(absl::MockLogDefault::kDisallowUnexpected);
log.StartCapturingLogs();
VLOG(4) << "dfgh";
}
} // namespace
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