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,
  85                         File::NotFoundHandler  onNotFound) const override;
  86
  87     private:
  88         std::set<std::string> existingFiles_;
  89
  90         GMX_DISALLOW_COPY_AND_ASSIGN(TestFileInputRedirector);
  91 };
  92
  93 /*! \libinternal \brief
  94  * In-memory implementation of IFileOutputRedirector for tests.
  95  *
  96  * This class redirects all output files to in-memory buffers, and supports
  97  * checking the contents of these files using the reference data framework.
  98  *
  99  * \ingroup module_testutils
 100  */
 101 class TestFileOutputRedirector : public IFileOutputRedirector
 102 {
 103     public:
 104         TestFileOutputRedirector();
 105         ~TestFileOutputRedirector() override;
 106
 107         /*! \brief
 108          * Checks contents of all redirected files (including stdout).
 109          *
 110          * This method should not be called if the redirector will still be
 111          * used for further output in the test.  Behavior is not designed for
 112          * checking in the middle of the test, although that could potentially
 113          * be changed if necessary.
 114          */
 115         void checkRedirectedFiles(TestReferenceChecker *checker);
 116
 117         // From IFileOutputRedirector
 118         TextOutputStream &standardOutput() override;
 119         TextOutputStreamPointer openTextOutputFile(const char *filename) override;
 120
 121     private:
 122         class Impl;
 123
 124         PrivateImplPointer<Impl> impl_;
 125 };
 126
 127 } // namespace test
 128 } // namespace gmx
 129
 130 #endif