src/testutils/testfileredirector.h

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  35 /*! \libinternal \file
  36  * \brief
  37  * Declares generic mock implementations for interfaces in fileredirector.h.
  38  *
  39  * \author Teemu Murtola <teemu.murtola@gmail.com>
  40  * \inlibraryapi
  41  * \ingroup module_testutils
  42  */
  43 #ifndef GMX_TESTUTILS_TESTFILEREDIRECTOR_H
  44 #define GMX_TESTUTILS_TESTFILEREDIRECTOR_H
  45
  46 #include <set>
  47 #include <string>
  48
  49 #include "gromacs/utility/classhelpers.h"
  50 #include "gromacs/utility/fileredirector.h"
  51
  52 namespace gmx
  53 {
  54 namespace test
  55 {
  56
  57 class TestReferenceChecker;
  58
  59 /*! \libinternal \brief
  60  * In-memory implementation for IFileInputRedirector for tests.
  61  *
  62  * By default, this implementation will return `false` for all file existence
  63  * checks.  To return `true` for a specific path, use addExistingFile().
  64  *
  65  * \inlibraryapi
  66  * \ingroup module_testutils
  67  */
  68 class TestFileInputRedirector : public IFileInputRedirector
  69 {
  70 public:
  71     TestFileInputRedirector();
  72     ~TestFileInputRedirector() override;
  73
  74     /*! \brief
  75      * Marks the provided path as an existing file.
  76      *
  77      * \throws std::bad_alloc if out of memory.
  78      *
  79      * Further checks for existence of the given path will return `true`.
  80      */
  81     void addExistingFile(const char* filename);
  82
  83     // From IFileInputRedirector
  84     bool fileExists(const char* filename, File::NotFoundHandler onNotFound) const override;
  85
  86 private:
  87     std::set<std::string> existingFiles_;
  88
  89     GMX_DISALLOW_COPY_AND_ASSIGN(TestFileInputRedirector);
  90 };
  91
  92 /*! \libinternal \brief
  93  * In-memory implementation of IFileOutputRedirector for tests.
  94  *
  95  * This class redirects all output files to in-memory buffers, and supports
  96  * checking the contents of these files using the reference data framework.
  97  *
  98  * \ingroup module_testutils
  99  */
 100 class TestFileOutputRedirector : public IFileOutputRedirector
 101 {
 102 public:
 103     TestFileOutputRedirector();
 104     ~TestFileOutputRedirector() override;
 105
 106     /*! \brief
 107      * Checks contents of all redirected files (including stdout).
 108      *
 109      * This method should not be called if the redirector will still be
 110      * used for further output in the test.  Behavior is not designed for
 111      * checking in the middle of the test, although that could potentially
 112      * be changed if necessary.
 113      */
 114     void checkRedirectedFiles(TestReferenceChecker* checker);
 115
 116     // From IFileOutputRedirector
 117     TextOutputStream&       standardOutput() override;
 118     TextOutputStreamPointer openTextOutputFile(const char* filename) override;
 119
 120 private:
 121     class Impl;
 122
 123     PrivateImplPointer<Impl> impl_;
 124 };
 125
 126 } // namespace test
 127 } // namespace gmx
 128
 129 #endif