+/*
+ * This file is part of the GROMACS molecular simulation package.
+ *
+ * Copyright (c) 2015, by the GROMACS development team, led by
+ * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
+ * and including many others, as listed in the AUTHORS file in the
+ * top-level source directory and at http://www.gromacs.org.
+ *
+ * GROMACS is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1
+ * of the License, or (at your option) any later version.
+ *
+ * GROMACS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with GROMACS; if not, see
+ * http://www.gnu.org/licenses, or write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * If you want to redistribute modifications to GROMACS, please
+ * consider that scientific software is very special. Version
+ * control is crucial - bugs must be traceable. We will be happy to
+ * consider code for inclusion in the official distribution, but
+ * derived work must not be called official GROMACS. Details are found
+ * in the README & COPYING files - if they are missing, get the
+ * official version at http://www.gromacs.org.
+ *
+ * To help us fund GROMACS development, we humbly ask that you cite
+ * the research papers on the package. Check out http://www.gromacs.org.
+ */
+/*! \libinternal \file
+ * \brief
+ * Declares generic mock implementations for interfaces in fileredirector.h.
+ *
+ * \author Teemu Murtola <teemu.murtola@gmail.com>
+ * \inlibraryapi
+ * \ingroup module_testutils
+ */
+#ifndef GMX_TESTUTILS_TESTFILEREDIRECTOR_H
+#define GMX_TESTUTILS_TESTFILEREDIRECTOR_H
+
+#include <set>
+#include <string>
+
+#include "gromacs/utility/classhelpers.h"
+#include "gromacs/utility/fileredirector.h"
+
+namespace gmx
+{
+namespace test
+{
+
+/*! \libinternal \brief
+ * In-memory implementation for FileInputRedirectorInterface for tests.
+ *
+ * By default, this implementation will return `false` for all file existence
+ * checks. To return `true` for a specific path, use addExistingFile().
+ *
+ * \inlibraryapi
+ * \ingroup module_testutils
+ */
+class TestFileInputRedirector : public FileInputRedirectorInterface
+{
+ public:
+ TestFileInputRedirector();
+ virtual ~TestFileInputRedirector();
+
+ /*! \brief
+ * Marks the provided path as an existing file.
+ *
+ * \throws std::bad_alloc if out of memory.
+ *
+ * Further checks for existence of the given path will return `true`.
+ */
+ void addExistingFile(const char *filename);
+
+ // From FileInputRedirectorInterface
+ virtual bool fileExists(const char *filename) const;
+
+ private:
+ std::set<std::string> existingFiles_;
+
+ GMX_DISALLOW_COPY_AND_ASSIGN(TestFileInputRedirector);
+};
+
+} // namespace test
+} // namespace gmx
+
+#endif