SDL  2.0
SDL_test_fuzzer.h File Reference
#include "begin_code.h"
#include "close_code.h"
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Functions

void SDLTest_FuzzerInit (Uint64 execKey)
 
Uint8 SDLTest_RandomUint8 (void)
 
Sint8 SDLTest_RandomSint8 (void)
 
Uint16 SDLTest_RandomUint16 (void)
 
Sint16 SDLTest_RandomSint16 (void)
 
Sint32 SDLTest_RandomSint32 (void)
 
Uint32 SDLTest_RandomUint32 (void)
 
Uint64 SDLTest_RandomUint64 (void)
 
Sint64 SDLTest_RandomSint64 (void)
 
float SDLTest_RandomUnitFloat (void)
 
double SDLTest_RandomUnitDouble (void)
 
float SDLTest_RandomFloat (void)
 
double SDLTest_RandomDouble (void)
 
Uint8 SDLTest_RandomUint8BoundaryValue (Uint8 boundary1, Uint8 boundary2, SDL_bool validDomain)
 
Uint16 SDLTest_RandomUint16BoundaryValue (Uint16 boundary1, Uint16 boundary2, SDL_bool validDomain)
 
Uint32 SDLTest_RandomUint32BoundaryValue (Uint32 boundary1, Uint32 boundary2, SDL_bool validDomain)
 
Uint64 SDLTest_RandomUint64BoundaryValue (Uint64 boundary1, Uint64 boundary2, SDL_bool validDomain)
 
Sint8 SDLTest_RandomSint8BoundaryValue (Sint8 boundary1, Sint8 boundary2, SDL_bool validDomain)
 
Sint16 SDLTest_RandomSint16BoundaryValue (Sint16 boundary1, Sint16 boundary2, SDL_bool validDomain)
 
Sint32 SDLTest_RandomSint32BoundaryValue (Sint32 boundary1, Sint32 boundary2, SDL_bool validDomain)
 
Sint64 SDLTest_RandomSint64BoundaryValue (Sint64 boundary1, Sint64 boundary2, SDL_bool validDomain)
 
Sint32 SDLTest_RandomIntegerInRange (Sint32 min, Sint32 max)
 
char * SDLTest_RandomAsciiString (void)
 
char * SDLTest_RandomAsciiStringWithMaximumLength (int maxLength)
 
char * SDLTest_RandomAsciiStringOfSize (int size)
 
int SDLTest_GetFuzzerInvocationCount (void)
 

Detailed Description

Include file for SDL test framework.

This code is a part of the SDL2_test library, not the main SDL library.

Note: The fuzzer implementation uses a static instance of random context internally which makes it thread-UNsafe.

Definition in file SDL_test_fuzzer.h.

Function Documentation

◆ SDLTest_FuzzerInit()

void SDLTest_FuzzerInit ( Uint64  execKey)

Initializes the fuzzer for a test

Parameters
execKeyExecution "Key" that initializes the random number generator uniquely for the test.

Definition at line 63 of file SDL_test_fuzzer.c.

References fuzzerInvocationCounter, SDL_memset, and SDLTest_RandomInit().

Referenced by main(), and SDLTest_RunTest().

64 {
65  Uint32 a = (execKey >> 32) & 0x00000000FFFFFFFF;
66  Uint32 b = execKey & 0x00000000FFFFFFFF;
67  SDL_memset((void *)&rndContext, 0, sizeof(SDLTest_RandomContext));
68  SDLTest_RandomInit(&rndContext, a, b);
70 }
uint32_t Uint32
Definition: SDL_stdinc.h:181
void SDLTest_RandomInit(SDLTest_RandomContext *rndContext, unsigned int xi, unsigned int ci)
Initialize random number generator with two integers.
static SDLTest_RandomContext rndContext
static int fuzzerInvocationCounter
GLboolean GLboolean GLboolean GLboolean a
GLboolean GLboolean GLboolean b
#define SDL_memset

◆ SDLTest_GetFuzzerInvocationCount()

int SDLTest_GetFuzzerInvocationCount ( void  )

Returns the invocation count for the fuzzer since last ...FuzzerInit.

Definition at line 73 of file SDL_test_fuzzer.c.

References fuzzerInvocationCounter.

Referenced by sdltest_getFuzzerInvocationCount(), and SDLTest_RunTest().

74 {
76 }
static int fuzzerInvocationCounter

◆ SDLTest_RandomAsciiString()

char* SDLTest_RandomAsciiString ( void  )

Generates random null-terminated string. The minimum length for the string is 1 character, maximum length for the string is 255 characters and it can contain ASCII characters from 32 to 126.

Note: Returned string needs to be deallocated.

Returns
Newly allocated random string; or NULL if length was invalid or string could not be allocated.

Definition at line 486 of file SDL_test_fuzzer.c.

References SDLTest_RandomAsciiStringWithMaximumLength().

Referenced by clipboard_testClipboardTextFunctions(), clipboard_testSetClipboardText(), and sdltest_randomAsciiString().

487 {
489 }
char * SDLTest_RandomAsciiStringWithMaximumLength(int maxLength)

◆ SDLTest_RandomAsciiStringOfSize()

char* SDLTest_RandomAsciiStringOfSize ( int  size)

Generates random null-terminated string. The length for the string is defined by the size parameter. String can contain ASCII characters from 32 to 126.

Note: Returned string needs to be deallocated.

Parameters
sizeThe length of the generated string
Returns
Newly allocated random string; or NULL if size was invalid or string could not be allocated.

Definition at line 507 of file SDL_test_fuzzer.c.

References fuzzerInvocationCounter, NULL, SDL_InvalidParamError, SDL_malloc, and SDLTest_RandomIntegerInRange().

Referenced by hints_setHint(), keyboard_getScancodeFromNameNegative(), sdltest_randomAsciiStringOfSize(), SDLTest_RandomAsciiStringWithMaximumLength(), stdlib_getsetenv(), and video_getSetWindowData().

508 {
509  char *string;
510  int counter;
511 
512 
513  if(size < 1) {
514  SDL_InvalidParamError("size");
515  return NULL;
516  }
517 
518  string = (char *)SDL_malloc((size + 1) * sizeof(char));
519  if (string==NULL) {
520  return NULL;
521  }
522 
523  for(counter = 0; counter < size; ++counter) {
524  string[counter] = (char)SDLTest_RandomIntegerInRange(32, 126);
525  }
526 
527  string[counter] = '\0';
528 
530 
531  return string;
532 }
GLsizei const GLchar *const * string
#define SDL_InvalidParamError(param)
Definition: SDL_error.h:54
Sint32 SDLTest_RandomIntegerInRange(Sint32 pMin, Sint32 pMax)
GLsizeiptr size
static int fuzzerInvocationCounter
#define NULL
Definition: begin_code.h:164
GLuint counter
#define SDL_malloc

◆ SDLTest_RandomAsciiStringWithMaximumLength()

char* SDLTest_RandomAsciiStringWithMaximumLength ( int  maxLength)

Generates random null-terminated string. The maximum length for the string is defined by the maxLength parameter. String can contain ASCII characters from 32 to 126.

Note: Returned string needs to be deallocated.

Parameters
maxLengthThe maximum length of the generated string.
Returns
Newly allocated random string; or NULL if maxLength was invalid or string could not be allocated.

Definition at line 492 of file SDL_test_fuzzer.c.

References NULL, SDL_InvalidParamError, SDLTest_RandomAsciiStringOfSize(), and SDLTest_RandomUint32().

Referenced by SDLTest_RandomAsciiString(), and sdltest_randomAsciiStringWithMaximumLength().

493 {
494  int size;
495 
496  if(maxLength < 1) {
497  SDL_InvalidParamError("maxLength");
498  return NULL;
499  }
500 
501  size = (SDLTest_RandomUint32() % (maxLength + 1));
502 
503  return SDLTest_RandomAsciiStringOfSize(size);
504 }
Uint32 SDLTest_RandomUint32()
char * SDLTest_RandomAsciiStringOfSize(int size)
#define SDL_InvalidParamError(param)
Definition: SDL_error.h:54
GLsizei maxLength
GLsizeiptr size
#define NULL
Definition: begin_code.h:164

◆ SDLTest_RandomDouble()

double SDLTest_RandomDouble ( void  )
Returns
random double.

Definition at line 470 of file SDL_test_fuzzer.c.

References fuzzerInvocationCounter, and SDLTest_RandomInt.

Referenced by sdltest_randomNumber().

471 {
472  double r = 0.0;
473  double s = 1.0;
474  do {
475  s /= UINT_MAX + 1.0;
476  r += (double)SDLTest_RandomInt(&rndContext) * s;
477  } while (s > DBL_EPSILON);
478 
480 
481  return r;
482 }
GLdouble GLdouble GLdouble r
Definition: SDL_opengl.h:2079
GLdouble s
Definition: SDL_opengl.h:2063
static SDLTest_RandomContext rndContext
static int fuzzerInvocationCounter
#define SDLTest_RandomInt(c)

◆ SDLTest_RandomFloat()

float SDLTest_RandomFloat ( void  )
Returns
random float.

Definition at line 458 of file SDL_test_fuzzer.c.

References SDLTest_RandomUnitDouble().

Referenced by sdltest_randomNumber().

459 {
460  return (float) (SDLTest_RandomUnitDouble() * (double)2.0 * (double)FLT_MAX - (double)(FLT_MAX));
461 }
double SDLTest_RandomUnitDouble()

◆ SDLTest_RandomIntegerInRange()

Sint32 SDLTest_RandomIntegerInRange ( Sint32  min,
Sint32  max 
)

Returns integer in range [min, max] (inclusive). Min and max values can be negative values. If Max in smaller than min, then the values are swapped. Min and max are the same value, that value will be returned.

Parameters
minMinimum inclusive value of returned random number
maxMaximum inclusive value of returned random number
Returns
Generated random integer in range

Definition at line 163 of file SDL_test_fuzzer.c.

References SDLTest_RandomUint32().

Referenced by _createVideoSuiteTestWindow(), _testGenericRWopsValidations(), audio_buildAudioCVT(), audio_convertAudio(), audio_enumerateAndNameAudioDevices(), audio_enumerateAndNameAudioDevicesNegativeTests(), audio_pauseUnpauseAudio(), events_addDelEventWatchWithUserdata(), keyboard_getKeyNameNegative(), keyboard_getSetModState(), keyboard_setTextInputRect(), main(), mouse_getMouseFocus(), mouse_warpMouseInWindow(), pixels_allocFreePalette(), pixels_calcGammaRamp(), rect_testEnclosePoints(), rect_testEnclosePointsParam(), rect_testEnclosePointsRepeatedInput(), rect_testEnclosePointsWithClipping(), rect_testHasIntersectionEmpty(), rect_testHasIntersectionInside(), rect_testHasIntersectionOutside(), rect_testHasIntersectionPartial(), rect_testHasIntersectionPoint(), rect_testIntersectRectAndLine(), rect_testIntersectRectAndLineEmpty(), rect_testIntersectRectAndLineInside(), rect_testIntersectRectAndLineOutside(), rect_testIntersectRectEmpty(), rect_testIntersectRectInside(), rect_testIntersectRectOutside(), rect_testIntersectRectPartial(), rect_testIntersectRectPoint(), rect_testRectEmpty(), rect_testRectEquals(), rect_testRectEqualsParam(), rect_testUnionRectEmpty(), rect_testUnionRectInside(), rect_testUnionRectOutside(), SDLTest_RandomAsciiStringOfSize(), sdltest_randomIntegerInRange(), stdlib_getsetenv(), timer_addRemoveTimer(), timer_delayAndGetTicks(), video_createWindowVariousFlags(), video_createWindowVariousPositions(), video_createWindowVariousSizes(), video_getClosestDisplayModeRandomResolution(), video_getNumDisplayModesNegative(), video_getSetWindowData(), video_getSetWindowMaximumSize(), video_getSetWindowMinimumSize(), video_getSetWindowPosition(), video_getSetWindowSize(), and video_getWindowId().

164 {
165  Sint64 min = pMin;
166  Sint64 max = pMax;
167  Sint64 temp;
168  Sint64 number;
169 
170  if(pMin > pMax) {
171  temp = min;
172  min = max;
173  max = temp;
174  } else if(pMin == pMax) {
175  return (Sint32)min;
176  }
177 
178  number = SDLTest_RandomUint32();
179  /* invocation count increment in preceeding call */
180 
181  return (Sint32)((number % ((max + 1) - min)) + min);
182 }
Uint32 SDLTest_RandomUint32()
int32_t Sint32
Definition: SDL_stdinc.h:175
int64_t Sint64
Definition: SDL_stdinc.h:188

◆ SDLTest_RandomSint16()

Sint16 SDLTest_RandomSint16 ( void  )

Returns a random Sint16

Returns
Generated signed integer

Definition at line 103 of file SDL_test_fuzzer.c.

References fuzzerInvocationCounter, and SDLTest_RandomInt.

Referenced by sdltest_randomIntegerInRange(), and sdltest_randomNumber().

104 {
106 
107  return (Sint16) SDLTest_RandomInt(&rndContext) & 0x0000FFFF;
108 }
static SDLTest_RandomContext rndContext
static int fuzzerInvocationCounter
#define SDLTest_RandomInt(c)
int16_t Sint16
Definition: SDL_stdinc.h:163

◆ SDLTest_RandomSint16BoundaryValue()

Sint16 SDLTest_RandomSint16BoundaryValue ( Sint16  boundary1,
Sint16  boundary2,
SDL_bool  validDomain 
)

Returns a random boundary value for Sint16 within the given boundaries. Boundaries are inclusive, see the usage examples below. If validDomain is true, the function will only return valid boundaries, otherwise non-valid boundaries are also possible. If boundary1 > boundary2, the values are swapped

Usage examples: RandomSint16BoundaryValue(-10, 20, SDL_TRUE) returns -11, -10, 19 or 20 RandomSint16BoundaryValue(-100, -10, SDL_FALSE) returns -101 or -9 RandomSint16BoundaryValue(SINT16_MIN, 99, SDL_FALSE) returns 100 RandomSint16BoundaryValue(SINT16_MIN, SINT16_MAX, SDL_FALSE) returns SINT16_MIN (== error value) with error set

Parameters
boundary1Lower boundary limit
boundary2Upper boundary limit
validDomainShould the generated boundary be valid (=within the bounds) or not?
Returns
Random boundary value for the given range and domain or SINT16_MIN with error set

Definition at line 414 of file SDL_test_fuzzer.c.

References SDLTest_GenerateSignedBoundaryValues().

Referenced by sdltest_randomBoundaryNumberSint16().

415 {
416  /* min & max values for Sint16 */
417  const Sint64 maxValue = SHRT_MAX;
418  const Sint64 minValue = SHRT_MIN;
419  return (Sint16)SDLTest_GenerateSignedBoundaryValues(minValue, maxValue,
420  (Sint64) boundary1, (Sint64) boundary2,
421  validDomain);
422 }
static Sint64 SDLTest_GenerateSignedBoundaryValues(const Sint64 minValue, const Sint64 maxValue, Sint64 boundary1, Sint64 boundary2, SDL_bool validDomain)
int64_t Sint64
Definition: SDL_stdinc.h:188
int16_t Sint16
Definition: SDL_stdinc.h:163

◆ SDLTest_RandomSint32()

Sint32 SDLTest_RandomSint32 ( void  )

Returns a random integer

Returns
Generated integer

Definition at line 111 of file SDL_test_fuzzer.c.

References fuzzerInvocationCounter, and SDLTest_RandomInt.

Referenced by events_addDelEventWatch(), events_addDelEventWatchWithUserdata(), events_pushPumpAndPollUserevent(), sdltest_randomNumber(), SDLTest_RandomSint64(), SDLTest_RandomUint64(), video_getSetWindowMaximumSize(), video_getSetWindowMinimumSize(), video_getSetWindowPosition(), and video_getSetWindowSize().

112 {
114 
116 }
int32_t Sint32
Definition: SDL_stdinc.h:175
static SDLTest_RandomContext rndContext
static int fuzzerInvocationCounter
#define SDLTest_RandomInt(c)

◆ SDLTest_RandomSint32BoundaryValue()

Sint32 SDLTest_RandomSint32BoundaryValue ( Sint32  boundary1,
Sint32  boundary2,
SDL_bool  validDomain 
)

Returns a random boundary value for Sint32 within the given boundaries. Boundaries are inclusive, see the usage examples below. If validDomain is true, the function will only return valid boundaries, otherwise non-valid boundaries are also possible. If boundary1 > boundary2, the values are swapped

Usage examples: RandomSint32BoundaryValue(-10, 20, SDL_TRUE) returns -11, -10, 19 or 20 RandomSint32BoundaryValue(-100, -10, SDL_FALSE) returns -101 or -9 RandomSint32BoundaryValue(SINT32_MIN, 99, SDL_FALSE) returns 100 RandomSint32BoundaryValue(SINT32_MIN, SINT32_MAX, SDL_FALSE) returns SINT32_MIN (== error value)

Parameters
boundary1Lower boundary limit
boundary2Upper boundary limit
validDomainShould the generated boundary be valid (=within the bounds) or not?
Returns
Random boundary value for the given range and domain or SINT32_MIN with error set

Definition at line 425 of file SDL_test_fuzzer.c.

References SDLTest_GenerateSignedBoundaryValues().

Referenced by sdltest_randomBoundaryNumberSint32(), and video_getNumDisplayModesNegative().

426 {
427  /* min & max values for Sint32 */
428  #if ((ULONG_MAX) == (UINT_MAX))
429  const Sint64 maxValue = LONG_MAX;
430  const Sint64 minValue = LONG_MIN;
431  #else
432  const Sint64 maxValue = INT_MAX;
433  const Sint64 minValue = INT_MIN;
434  #endif
435  return (Sint32)SDLTest_GenerateSignedBoundaryValues(minValue, maxValue,
436  (Sint64) boundary1, (Sint64) boundary2,
437  validDomain);
438 }
static Sint64 SDLTest_GenerateSignedBoundaryValues(const Sint64 minValue, const Sint64 maxValue, Sint64 boundary1, Sint64 boundary2, SDL_bool validDomain)
int32_t Sint32
Definition: SDL_stdinc.h:175
int64_t Sint64
Definition: SDL_stdinc.h:188

◆ SDLTest_RandomSint64()

Sint64 SDLTest_RandomSint64 ( void  )

Returns random Sint64.

Returns
Generated signed integer

Definition at line 144 of file SDL_test_fuzzer.c.

References fuzzerInvocationCounter, and SDLTest_RandomSint32().

Referenced by sdltest_randomNumber().

145 {
146  union {
147  Uint64 v64;
148  Uint32 v32[2];
149  } value;
150  value.v64 = 0;
151 
153 
154  value.v32[0] = SDLTest_RandomSint32();
155  value.v32[1] = SDLTest_RandomSint32();
156 
157  return (Sint64)value.v64;
158 }
uint32_t Uint32
Definition: SDL_stdinc.h:181
uint64_t Uint64
Definition: SDL_stdinc.h:194
GLsizei const GLfloat * value
Sint32 SDLTest_RandomSint32()
static int fuzzerInvocationCounter
int64_t Sint64
Definition: SDL_stdinc.h:188

◆ SDLTest_RandomSint64BoundaryValue()

Sint64 SDLTest_RandomSint64BoundaryValue ( Sint64  boundary1,
Sint64  boundary2,
SDL_bool  validDomain 
)

Returns a random boundary value for Sint64 within the given boundaries. Boundaries are inclusive, see the usage examples below. If validDomain is true, the function will only return valid boundaries, otherwise non-valid boundaries are also possible. If boundary1 > boundary2, the values are swapped

Usage examples: RandomSint64BoundaryValue(-10, 20, SDL_TRUE) returns -11, -10, 19 or 20 RandomSint64BoundaryValue(-100, -10, SDL_FALSE) returns -101 or -9 RandomSint64BoundaryValue(SINT64_MIN, 99, SDL_FALSE) returns 100 RandomSint64BoundaryValue(SINT64_MIN, SINT64_MAX, SDL_FALSE) returns SINT64_MIN (== error value) and error set

Parameters
boundary1Lower boundary limit
boundary2Upper boundary limit
validDomainShould the generated boundary be valid (=within the bounds) or not?
Returns
Random boundary value for the given range and domain or SINT64_MIN with error set

Definition at line 441 of file SDL_test_fuzzer.c.

References SDLTest_GenerateSignedBoundaryValues().

Referenced by sdltest_randomBoundaryNumberSint64().

442 {
443  /* min & max values for Sint64 */
444  const Sint64 maxValue = INT64_MAX;
445  const Sint64 minValue = INT64_MIN;
446  return SDLTest_GenerateSignedBoundaryValues(minValue, maxValue,
447  boundary1, boundary2,
448  validDomain);
449 }
static Sint64 SDLTest_GenerateSignedBoundaryValues(const Sint64 minValue, const Sint64 maxValue, Sint64 boundary1, Sint64 boundary2, SDL_bool validDomain)
int64_t Sint64
Definition: SDL_stdinc.h:188

◆ SDLTest_RandomSint8()

Sint8 SDLTest_RandomSint8 ( void  )

Returns a random Sint8

Returns
Generated signed integer

Definition at line 87 of file SDL_test_fuzzer.c.

References fuzzerInvocationCounter, and SDLTest_RandomInt.

Referenced by sdltest_randomNumber().

88 {
90 
91  return (Sint8) SDLTest_RandomInt(&rndContext) & 0x000000FF;
92 }
int8_t Sint8
Definition: SDL_stdinc.h:151
static SDLTest_RandomContext rndContext
static int fuzzerInvocationCounter
#define SDLTest_RandomInt(c)

◆ SDLTest_RandomSint8BoundaryValue()

Sint8 SDLTest_RandomSint8BoundaryValue ( Sint8  boundary1,
Sint8  boundary2,
SDL_bool  validDomain 
)

Returns a random boundary value for Sint8 within the given boundaries. Boundaries are inclusive, see the usage examples below. If validDomain is true, the function will only return valid boundaries, otherwise non-valid boundaries are also possible. If boundary1 > boundary2, the values are swapped

Usage examples: RandomSint8BoundaryValue(-10, 20, SDL_TRUE) returns -11, -10, 19 or 20 RandomSint8BoundaryValue(-100, -10, SDL_FALSE) returns -101 or -9 RandomSint8BoundaryValue(SINT8_MIN, 99, SDL_FALSE) returns 100 RandomSint8BoundaryValue(SINT8_MIN, SINT8_MAX, SDL_FALSE) returns SINT8_MIN (== error value) with error set

Parameters
boundary1Lower boundary limit
boundary2Upper boundary limit
validDomainShould the generated boundary be valid (=within the bounds) or not?
Returns
Random boundary value for the given range and domain or SINT8_MIN with error set

Definition at line 403 of file SDL_test_fuzzer.c.

References SDLTest_GenerateSignedBoundaryValues().

Referenced by sdltest_randomBoundaryNumberSint8().

404 {
405  /* min & max values for Sint8 */
406  const Sint64 maxValue = SCHAR_MAX;
407  const Sint64 minValue = SCHAR_MIN;
408  return (Sint8)SDLTest_GenerateSignedBoundaryValues(minValue, maxValue,
409  (Sint64) boundary1, (Sint64) boundary2,
410  validDomain);
411 }
static Sint64 SDLTest_GenerateSignedBoundaryValues(const Sint64 minValue, const Sint64 maxValue, Sint64 boundary1, Sint64 boundary2, SDL_bool validDomain)
int8_t Sint8
Definition: SDL_stdinc.h:151
int64_t Sint64
Definition: SDL_stdinc.h:188

◆ SDLTest_RandomUint16()

Uint16 SDLTest_RandomUint16 ( void  )

Returns a random Uint16

Returns
Generated integer

Definition at line 95 of file SDL_test_fuzzer.c.

References fuzzerInvocationCounter, and SDLTest_RandomInt.

Referenced by rwops_testFileWriteReadEndian(), and sdltest_randomNumber().

96 {
98 
99  return (Uint16) SDLTest_RandomInt(&rndContext) & 0x0000FFFF;
100 }
static SDLTest_RandomContext rndContext
static int fuzzerInvocationCounter
#define SDLTest_RandomInt(c)
uint16_t Uint16
Definition: SDL_stdinc.h:169

◆ SDLTest_RandomUint16BoundaryValue()

Uint16 SDLTest_RandomUint16BoundaryValue ( Uint16  boundary1,
Uint16  boundary2,
SDL_bool  validDomain 
)

Returns a random boundary value for Uint16 within the given boundaries. Boundaries are inclusive, see the usage examples below. If validDomain is true, the function will only return valid boundaries, otherwise non-valid boundaries are also possible. If boundary1 > boundary2, the values are swapped

Usage examples: RandomUint16BoundaryValue(10, 20, SDL_TRUE) returns 10, 11, 19 or 20 RandomUint16BoundaryValue(1, 20, SDL_FALSE) returns 0 or 21 RandomUint16BoundaryValue(0, 99, SDL_FALSE) returns 100 RandomUint16BoundaryValue(0, 0xFFFF, SDL_FALSE) returns 0 (error set)

Parameters
boundary1Lower boundary limit
boundary2Upper boundary limit
validDomainShould the generated boundary be valid (=within the bounds) or not?
Returns
Random boundary value for the given range and domain or 0 with error set

Definition at line 281 of file SDL_test_fuzzer.c.

References SDLTest_GenerateUnsignedBoundaryValues().

Referenced by sdltest_randomBoundaryNumberUint16().

282 {
283  /* max value for Uint16 */
284  const Uint64 maxValue = USHRT_MAX;
286  (Uint64) boundary1, (Uint64) boundary2,
287  validDomain);
288 }
uint64_t Uint64
Definition: SDL_stdinc.h:194
uint16_t Uint16
Definition: SDL_stdinc.h:169
static Uint64 SDLTest_GenerateUnsignedBoundaryValues(const Uint64 maxValue, Uint64 boundary1, Uint64 boundary2, SDL_bool validDomain)

◆ SDLTest_RandomUint32()

Uint32 SDLTest_RandomUint32 ( void  )

Returns a random positive integer

Returns
Generated integer

Definition at line 119 of file SDL_test_fuzzer.c.

References fuzzerInvocationCounter, and SDLTest_RandomInt.

Referenced by rwops_testFileWriteReadEndian(), SDLTest_RandomAsciiStringWithMaximumLength(), SDLTest_RandomIntegerInRange(), sdltest_randomNumber(), and SDLTest_RandomUnitFloat().

120 {
122 
124 }
uint32_t Uint32
Definition: SDL_stdinc.h:181
static SDLTest_RandomContext rndContext
static int fuzzerInvocationCounter
#define SDLTest_RandomInt(c)

◆ SDLTest_RandomUint32BoundaryValue()

Uint32 SDLTest_RandomUint32BoundaryValue ( Uint32  boundary1,
Uint32  boundary2,
SDL_bool  validDomain 
)

Returns a random boundary value for Uint32 within the given boundaries. Boundaries are inclusive, see the usage examples below. If validDomain is true, the function will only return valid boundaries, otherwise non-valid boundaries are also possible. If boundary1 > boundary2, the values are swapped

Usage examples: RandomUint32BoundaryValue(10, 20, SDL_TRUE) returns 10, 11, 19 or 20 RandomUint32BoundaryValue(1, 20, SDL_FALSE) returns 0 or 21 RandomUint32BoundaryValue(0, 99, SDL_FALSE) returns 100 RandomUint32BoundaryValue(0, 0xFFFFFFFF, SDL_FALSE) returns 0 (with error set)

Parameters
boundary1Lower boundary limit
boundary2Upper boundary limit
validDomainShould the generated boundary be valid (=within the bounds) or not?
Returns
Random boundary value for the given range and domain or 0 with error set

Definition at line 291 of file SDL_test_fuzzer.c.

References SDLTest_GenerateUnsignedBoundaryValues().

Referenced by sdltest_randomBoundaryNumberUint32().

292 {
293  /* max value for Uint32 */
294  #if ((ULONG_MAX) == (UINT_MAX))
295  const Uint64 maxValue = ULONG_MAX;
296  #else
297  const Uint64 maxValue = UINT_MAX;
298  #endif
300  (Uint64) boundary1, (Uint64) boundary2,
301  validDomain);
302 }
uint32_t Uint32
Definition: SDL_stdinc.h:181
uint64_t Uint64
Definition: SDL_stdinc.h:194
static Uint64 SDLTest_GenerateUnsignedBoundaryValues(const Uint64 maxValue, Uint64 boundary1, Uint64 boundary2, SDL_bool validDomain)

◆ SDLTest_RandomUint64()

Uint64 SDLTest_RandomUint64 ( void  )

Returns random Uint64.

Returns
Generated integer

Definition at line 127 of file SDL_test_fuzzer.c.

References fuzzerInvocationCounter, and SDLTest_RandomSint32().

Referenced by rwops_testFileWriteReadEndian(), sdltest_randomNumber(), and SDLTest_RandomUnitDouble().

128 {
129  union {
130  Uint64 v64;
131  Uint32 v32[2];
132  } value;
133  value.v64 = 0;
134 
136 
137  value.v32[0] = SDLTest_RandomSint32();
138  value.v32[1] = SDLTest_RandomSint32();
139 
140  return value.v64;
141 }
uint32_t Uint32
Definition: SDL_stdinc.h:181
uint64_t Uint64
Definition: SDL_stdinc.h:194
GLsizei const GLfloat * value
Sint32 SDLTest_RandomSint32()
static int fuzzerInvocationCounter

◆ SDLTest_RandomUint64BoundaryValue()

Uint64 SDLTest_RandomUint64BoundaryValue ( Uint64  boundary1,
Uint64  boundary2,
SDL_bool  validDomain 
)

Returns a random boundary value for Uint64 within the given boundaries. Boundaries are inclusive, see the usage examples below. If validDomain is true, the function will only return valid boundaries, otherwise non-valid boundaries are also possible. If boundary1 > boundary2, the values are swapped

Usage examples: RandomUint64BoundaryValue(10, 20, SDL_TRUE) returns 10, 11, 19 or 20 RandomUint64BoundaryValue(1, 20, SDL_FALSE) returns 0 or 21 RandomUint64BoundaryValue(0, 99, SDL_FALSE) returns 100 RandomUint64BoundaryValue(0, 0xFFFFFFFFFFFFFFFF, SDL_FALSE) returns 0 (with error set)

Parameters
boundary1Lower boundary limit
boundary2Upper boundary limit
validDomainShould the generated boundary be valid (=within the bounds) or not?
Returns
Random boundary value for the given range and domain or 0 with error set

Definition at line 305 of file SDL_test_fuzzer.c.

References SDLTest_GenerateUnsignedBoundaryValues(), and UINT64_MAX.

Referenced by sdltest_randomBoundaryNumberUint64().

306 {
307  /* max value for Uint64 */
308  const Uint64 maxValue = UINT64_MAX;
310  (Uint64) boundary1, (Uint64) boundary2,
311  validDomain);
312 }
#define UINT64_MAX
Definition: testvulkan.c:39
uint64_t Uint64
Definition: SDL_stdinc.h:194
static Uint64 SDLTest_GenerateUnsignedBoundaryValues(const Uint64 maxValue, Uint64 boundary1, Uint64 boundary2, SDL_bool validDomain)

◆ SDLTest_RandomUint8()

Uint8 SDLTest_RandomUint8 ( void  )

Returns a random Uint8

Returns
Generated integer

Definition at line 79 of file SDL_test_fuzzer.c.

References fuzzerInvocationCounter, and SDLTest_RandomInt.

Referenced by SDLTest_GenerateSignedBoundaryValues(), SDLTest_GenerateUnsignedBoundaryValues(), sdltest_getFuzzerInvocationCount(), sdltest_randomAsciiStringOfSize(), sdltest_randomAsciiStringWithMaximumLength(), sdltest_randomIntegerInRange(), and sdltest_randomNumber().

80 {
82 
83  return (Uint8) SDLTest_RandomInt(&rndContext) & 0x000000FF;
84 }
uint8_t Uint8
Definition: SDL_stdinc.h:157
static SDLTest_RandomContext rndContext
static int fuzzerInvocationCounter
#define SDLTest_RandomInt(c)

◆ SDLTest_RandomUint8BoundaryValue()

Uint8 SDLTest_RandomUint8BoundaryValue ( Uint8  boundary1,
Uint8  boundary2,
SDL_bool  validDomain 
)

Returns a random boundary value for Uint8 within the given boundaries. Boundaries are inclusive, see the usage examples below. If validDomain is true, the function will only return valid boundaries, otherwise non-valid boundaries are also possible. If boundary1 > boundary2, the values are swapped

Usage examples: RandomUint8BoundaryValue(10, 20, SDL_TRUE) returns 10, 11, 19 or 20 RandomUint8BoundaryValue(1, 20, SDL_FALSE) returns 0 or 21 RandomUint8BoundaryValue(0, 99, SDL_FALSE) returns 100 RandomUint8BoundaryValue(0, 255, SDL_FALSE) returns 0 (error set)

Parameters
boundary1Lower boundary limit
boundary2Upper boundary limit
validDomainShould the generated boundary be valid (=within the bounds) or not?
Returns
Random boundary value for the given range and domain or 0 with error set

Definition at line 271 of file SDL_test_fuzzer.c.

References SDLTest_GenerateUnsignedBoundaryValues().

Referenced by sdltest_randomBoundaryNumberUint8().

272 {
273  /* max value for Uint8 */
274  const Uint64 maxValue = UCHAR_MAX;
276  (Uint64) boundary1, (Uint64) boundary2,
277  validDomain);
278 }
uint64_t Uint64
Definition: SDL_stdinc.h:194
uint8_t Uint8
Definition: SDL_stdinc.h:157
static Uint64 SDLTest_GenerateUnsignedBoundaryValues(const Uint64 maxValue, Uint64 boundary1, Uint64 boundary2, SDL_bool validDomain)

◆ SDLTest_RandomUnitDouble()

double SDLTest_RandomUnitDouble ( void  )
Returns
random double in range [0.0 - 1.0[

Definition at line 464 of file SDL_test_fuzzer.c.

References SDLTest_RandomUint64().

Referenced by SDLTest_RandomFloat(), and sdltest_randomNumber().

465 {
466  return (double) (SDLTest_RandomUint64() >> 11) * (1.0/9007199254740992.0);
467 }
Uint64 SDLTest_RandomUint64()

◆ SDLTest_RandomUnitFloat()

float SDLTest_RandomUnitFloat ( void  )
Returns
random float in range [0.0 - 1.0[

Definition at line 452 of file SDL_test_fuzzer.c.

References SDLTest_RandomUint32().

Referenced by pixels_calcGammaRamp(), and sdltest_randomNumber().

453 {
454  return SDLTest_RandomUint32() / (float) UINT_MAX;
455 }
Uint32 SDLTest_RandomUint32()