visualtest/include/SDL_visualtest_exhaustive_variator.h
author Brandon Schaefer <brandon.schaefer@canonical.com>
Wed, 08 Jun 2016 08:01:21 -0700
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/* See COPYING.txt for the full license governing this code. */
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/**
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 * \file SDL_visualtest_exhaustive_variator.h
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 *
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 * Header for the exhaustive variator.
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 */
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#include "SDL_visualtest_harness_argparser.h"
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#include "SDL_visualtest_variator_common.h"
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#ifndef _SDL_visualtest_exhaustive_variator_h
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#define _SDL_visualtest_exhaustive_variator_h
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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 * Struct for the variator that exhaustively iterates through all variations of
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 * command line arguments to the SUT.
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 */
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typedef struct SDLVisualTest_ExhaustiveVariator
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{
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    /*! The current variation. */
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    SDLVisualTest_Variation variation;
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    /*! Configuration object for the SUT that the variator is running for. */
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    SDLVisualTest_SUTConfig config;
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    /*! Buffer to store the arguments string built from the variation */
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    char buffer[MAX_SUT_ARGS_LEN];
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} SDLVisualTest_ExhaustiveVariator;
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/**
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 * Initializes the variator.
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 *
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 * \return 1 on success, 0 on failure
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 */
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int SDLVisualTest_InitExhaustiveVariator(SDLVisualTest_ExhaustiveVariator* variator,
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                                         SDLVisualTest_SUTConfig* config);
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/**
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 * Gets the arguments string for the next variation using the variator and updates
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 * the variator's current variation object to the next variation.
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 *
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 * \return The arguments string representing the next variation on success, and
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 *         NULL on failure or if we have iterated through all possible variations.
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 *         In the latter case subsequent calls will start the variations again from
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 *         the very beginning. The pointer returned should not be freed.
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 */
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char* SDLVisualTest_GetNextExhaustiveVariation(SDLVisualTest_ExhaustiveVariator* variator);
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/**
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 * Frees any resources associated with the variator.
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 */
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void SDLVisualTest_FreeExhaustiveVariator(SDLVisualTest_ExhaustiveVariator* variator);
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/* Ends C function definitions when using C++ */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _SDL_visualtest_exhaustive_variator_h */