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123 lines
4 KiB
C
123 lines
4 KiB
C
/* See LICENSE.txt for the full license governing this code. */
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/**
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* \file SDL_visualtest_variator_common.h
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*
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* Header for common functionality used by variators.
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*/
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#include <SDL_types.h>
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#include "SDL_visualtest_sut_configparser.h"
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#ifndef SDL_visualtest_variator_common_h_
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#define SDL_visualtest_variator_common_h_
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/** The number of variations one integer option would generate */
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#define SDL_SUT_INTEGER_OPTION_TEST_STEPS 3
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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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/** enum for indicating the type of variator being used */
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typedef enum SDLVisualTest_VariatorType
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{
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SDL_VARIATOR_NONE = 0,
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SDL_VARIATOR_EXHAUSTIVE,
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SDL_VARIATOR_RANDOM
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} SDLVisualTest_VariatorType;
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/**
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* One possible value for a command line option to the SUT.
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*/
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typedef union SDLVisualTest_SUTOptionValue
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{
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/*! Value if the option is of type boolean */
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SDL_bool bool_value;
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/*! Value if the option is of type integer. If on is true then the option
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will be passed to the SUT, otherwise it will be ignored. */
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struct {
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int value;
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SDL_bool on;
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} integer;
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/*! Index of the string in the enum_values field of the corresponding
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SDLVisualTest_SUTOption object. If on is true the option will passed
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to the SUT, otherwise it will be ignored. */
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struct {
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int index;
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SDL_bool on;
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} enumerated;
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/*! Value if the option is of type string. If on is true the option will
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be passed to the SUT, otherwise it will be ignored. */
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struct {
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char* value;
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SDL_bool on;
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} string;
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} SDLVisualTest_SUTOptionValue;
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/**
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* Represents a valid combination of parameters that can be passed to the SUT.
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* The ordering of the values here is the same as the ordering of the options in
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* the SDLVisualTest_SUTConfig object for this variation.
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*/
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typedef struct SDLVisualTest_Variation
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{
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/*! Pointer to array of option values */
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SDLVisualTest_SUTOptionValue* vars;
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/*! Number of option values in \c vars */
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int num_vars;
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} SDLVisualTest_Variation;
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/**
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* "Increments" the value of the option by one and returns the carry. We wrap
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* around to the initial value on overflow which makes the carry one.
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* For example: "incrementing" an SDL_FALSE option makes it SDL_TRUE with no
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* carry, and "incrementing" an SDL_TRUE option makes it SDL_FALSE with carry
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* one. For integers, a random value in the valid range for the option is used.
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*
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* \param var Value of the option
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* \param opt Object with metadata about the option
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*
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* \return 1 if there is a carry for enum and bool type options, 0 otherwise.
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* 1 is always returned for integer and string type options. -1 is
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* returned on error.
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*/
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int SDLVisualTest_NextValue(SDLVisualTest_SUTOptionValue* var,
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SDLVisualTest_SUTOption* opt);
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/**
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* Converts a variation object into a string of command line arguments.
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*
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* \param variation Variation object to be converted.
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* \param config Config object for the SUT.
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* \param buffer Pointer to the buffer the arguments string will be copied into.
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* \param size Size of the buffer.
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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_MakeStrFromVariation(SDLVisualTest_Variation* variation,
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SDLVisualTest_SUTConfig* config,
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char* buffer, int size);
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/**
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* Initializes the variation using the following rules:
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* - Boolean options are initialized to SDL_FALSE.
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* - Integer options are initialized to the minimum valid value they can hold.
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* - Enum options are initialized to the first element in the list of values they
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* can take.
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* - String options are initialized to the name of the option.
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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_InitVariation(SDLVisualTest_Variation* variation,
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SDLVisualTest_SUTConfig* config);
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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_variator_common_h_ */
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/* vi: set ts=4 sw=4 expandtab: */
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