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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
//
// 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.
//
// -----------------------------------------------------------------------------
// File: log/internal/test_actions.h
// -----------------------------------------------------------------------------
//
// This file declares Googletest's actions used in the Abseil Logging library
// unit tests.
#ifndef ABSL_LOG_INTERNAL_TEST_ACTIONS_H_
#define ABSL_LOG_INTERNAL_TEST_ACTIONS_H_
#include <iostream>
#include <ostream>
#include <string>
#include "absl/base/config.h"
#include "absl/base/log_severity.h"
#include "absl/log/log_entry.h"
#include "absl/strings/string_view.h"
namespace absl {
ABSL_NAMESPACE_BEGIN
namespace log_internal {
// These actions are used by the child process in a death test.
//
// Expectations set in the child cannot cause test failure in the parent
// directly. Instead, the child can use these actions with
// `EXPECT_CALL`/`WillOnce` and `ON_CALL`/`WillByDefault` (for unexpected calls)
// to write messages to stderr that the parent can match against.
struct WriteToStderr final {
explicit WriteToStderr(absl::string_view m) : message(m) {}
std::string message;
template <typename... Args>
void operator()(const Args&...) const {
std::cerr << message << std::endl;
}
};
struct WriteToStderrWithFilename final {
explicit WriteToStderrWithFilename(absl::string_view m) : message(m) {}
std::string message;
void operator()(const absl::LogEntry& entry) const;
};
struct WriteEntryToStderr final {
explicit WriteEntryToStderr(absl::string_view m) : message(m) {}
std::string message = "";
void operator()(const absl::LogEntry& entry) const;
void operator()(absl::LogSeverity, absl::string_view,
absl::string_view) const;
};
// See the documentation for `DeathTestValidateExpectations` above.
// `DeathTestExpectedLogging` should be used once in a given death test, and the
// applicable severity level is the one that should be passed to
// `DeathTestValidateExpectations`.
inline WriteEntryToStderr DeathTestExpectedLogging() {
return WriteEntryToStderr{"Mock received expected entry:"};
}
// `DeathTestUnexpectedLogging` should be used zero or more times to mark
// messages that should not hit the logs as the process dies.
inline WriteEntryToStderr DeathTestUnexpectedLogging() {
return WriteEntryToStderr{"Mock received unexpected entry:"};
}
} // namespace log_internal
ABSL_NAMESPACE_END
} // namespace absl
#endif // ABSL_LOG_INTERNAL_TEST_ACTIONS_H_
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