test: Move util/test to its own top-level directory, test

util/test/multiprocess_exec.h

-// Copyright 2014 The Crashpad Authors. All rights reserved.
-//
-// 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.
-
-#ifndef CRASHPAD_UTIL_TEST_MULTIPROCESS_EXEC_H_
-#define CRASHPAD_UTIL_TEST_MULTIPROCESS_EXEC_H_
-
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "build/build_config.h"
-#include "util/test/multiprocess.h"
-
-namespace crashpad {
-namespace test {
-
-//! \brief Manages an `exec()`-based multiprocess test.
-//!
-//! These tests are based on `fork()` and `exec()`. The parent process is able
-//! to communicate with the child in the same manner as a base-class
-//! Multiprocess parent. The read and write pipes appear in the child process on
-//! stdin and stdout, respectively.
-//!
-//! Subclasses are expected to implement the parent in the same was as a
-//! base-class Multiprocess parent. The child must be implemented in an
-//! executable to be set by SetChildCommand().
-class MultiprocessExec : public Multiprocess {
- public:
-  MultiprocessExec();
-
-  //! \brief Sets the command to `exec()` in the child.
-  //!
-  //! This method must be called before the test can be Run().
-  //!
-  //! \param[in] command The executable’s pathname.
-  //! \param[in] arguments The command-line arguments to pass to the child
-  //!     process in its `argv[]` vector. This vector must begin at `argv[1]`,
-  //!     as \a command is implicitly used as `argv[0]`. This argument may be
-  //!     `nullptr` if no command-line arguments are to be passed.
-  void SetChildCommand(const std::string& command,
-                       const std::vector<std::string>* arguments);
-
- protected:
-  ~MultiprocessExec();
-
-  // Multiprocess:
-  void PreFork() override;
-
- private:
-  // Multiprocess:
-  void MultiprocessChild() override;
-
-  std::string command_;
-  std::vector<std::string> arguments_;
-#if defined(OS_POSIX)
-  std::vector<const char*> argv_;
-#elif defined(OS_WIN)
-  std::wstring command_line_;
-#endif  // OS_POSIX
-
-  DISALLOW_COPY_AND_ASSIGN(MultiprocessExec);
-};
-
-}  // namespace test
-}  // namespace crashpad
-
-#endif  // CRASHPAD_UTIL_TEST_MULTIPROCESS_EXEC_H_