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Replaced test framework random code with SDL random functions

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This commit is contained in:
Sam Lantinga
2024-06-23 12:42:54 -07:00
parent 96f2f23240
commit a938e2b979
16 changed files with 21 additions and 264 deletions
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29
src/test/SDL_test_fuzzer.c
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@@ -37,7 +37,7 @@ static int fuzzerInvocationCounter = 0;
/**
* Context for shared random number generator
*/
static SDLTest_RandomContext rndContext;
static Uint64 rndContext;
/*
* Note: doxygen documentation markup for functions is in the header file.
@@ -45,10 +45,7 @@ static SDLTest_RandomContext rndContext;
void SDLTest_FuzzerInit(Uint64 execKey)
{
Uint32 a = (execKey >> 32) & 0x00000000FFFFFFFF;
Uint32 b = execKey & 0x00000000FFFFFFFF;
SDL_memset((void *)&rndContext, 0, sizeof(SDLTest_RandomContext));
SDLTest_RandomInit(&rndContext, a, b);
rndContext = execKey;
fuzzerInvocationCounter = 0;
}
@@ -61,42 +58,42 @@ Uint8 SDLTest_RandomUint8(void)
{
fuzzerInvocationCounter++;
return (Uint8)SDLTest_RandomInt(&rndContext) & 0x000000FF;
return (Uint8)SDL_rand_r(&rndContext, SDL_MAX_UINT8 + 1);
}
Sint8 SDLTest_RandomSint8(void)
{
fuzzerInvocationCounter++;
return (Sint8)SDLTest_RandomInt(&rndContext) & 0x000000FF;
return (Sint8)SDL_rand_r(&rndContext, SDL_MAX_UINT8 + 1) ;
}
Uint16 SDLTest_RandomUint16(void)
{
fuzzerInvocationCounter++;
return (Uint16)SDLTest_RandomInt(&rndContext) & 0x0000FFFF;
return (Uint16)SDL_rand_r(&rndContext, SDL_MAX_UINT16 + 1);
}
Sint16 SDLTest_RandomSint16(void)
{
fuzzerInvocationCounter++;
return (Sint16)SDLTest_RandomInt(&rndContext) & 0x0000FFFF;
return (Sint16)SDL_rand_r(&rndContext, SDL_MAX_UINT16 + 1);
}
Sint32 SDLTest_RandomSint32(void)
{
fuzzerInvocationCounter++;
return (Sint32)SDLTest_RandomInt(&rndContext);
return (Sint32)SDL_rand_bits_r(&rndContext);
}
Uint32 SDLTest_RandomUint32(void)
{
fuzzerInvocationCounter++;
return (Uint32)SDLTest_RandomInt(&rndContext);
return (Uint32)SDL_rand_bits_r(&rndContext);
}
Uint64 SDLTest_RandomUint64(void)
@@ -110,8 +107,8 @@ Uint64 SDLTest_RandomUint64(void)
fuzzerInvocationCounter++;
value.v32[0] = SDLTest_RandomSint32();
value.v32[1] = SDLTest_RandomSint32();
value.v32[0] = SDLTest_RandomUint32();
value.v32[1] = SDLTest_RandomUint32();
return value.v64;
}
@@ -127,8 +124,8 @@ Sint64 SDLTest_RandomSint64(void)
fuzzerInvocationCounter++;
value.v32[0] = SDLTest_RandomSint32();
value.v32[1] = SDLTest_RandomSint32();
value.v32[0] = SDLTest_RandomUint32();
value.v32[1] = SDLTest_RandomUint32();
return (Sint64)value.v64;
}
@@ -432,7 +429,7 @@ SDLTest_RandomDouble(void)
double s = 1.0;
do {
s /= UINT_MAX + 1.0;
r += (double)SDLTest_RandomInt(&rndContext) * s;
r += (double)SDLTest_RandomSint32() * s;
} while (s > DBL_EPSILON);
fuzzerInvocationCounter++;