/**

* Timer test suite

*/

#include <stdio.h>

#include "SDL.h"

#include "SDL_test.h"

/* Flag indicating if the param should be checked */

int _paramCheck = 0;

/* Userdata value to check */

int _paramValue = 0;

/* Flag indicating that the callback was called */

int _timerCallbackCalled = 0;

/* Fixture */

void

_timerSetUp(void *arg)

{

/* Start SDL timer subsystem */

int ret = SDL_InitSubSystem( SDL_INIT_TIMER );

SDLTest_AssertPass("Call to SDL_InitSubSystem(SDL_INIT_TIMER)");

SDLTest_AssertCheck(ret==0, "Check result from SDL_InitSubSystem(SDL_INIT_TIMER)");

if (ret != 0) {

SDLTest_LogError("%s", SDL_GetError());

}

}

/* Test case functions */

/**

* @brief Call to SDL_GetPerformanceCounter

*/

int

timer_getPerformanceCounter(void *arg)

{

Uint64 result;

result = SDL_GetPerformanceCounter();

SDLTest_AssertPass("Call to SDL_GetPerformanceCounter()");

SDLTest_AssertCheck(result > 0, "Check result value, expected: >0, got: %lu", result);

return TEST_COMPLETED;

}

/**

* @brief Call to SDL_GetPerformanceFrequency

*/

int

timer_getPerformanceFrequency(void *arg)

{

Uint64 result;

result = SDL_GetPerformanceFrequency();

SDLTest_AssertPass("Call to SDL_GetPerformanceFrequency()");

SDLTest_AssertCheck(result > 0, "Check result value, expected: >0, got: %lu", result);

return TEST_COMPLETED;

}

/**

* @brief Call to SDL_Delay and SDL_GetTicks

*/

int

timer_delayAndGetTicks(void *arg)

{

const Uint32 testDelay = 100;

const Uint32 marginOfError = 25;

Uint32 result;

Uint32 result2;

Uint32 difference;

/* Zero delay */

SDL_Delay(0);

SDLTest_AssertPass("Call to SDL_Delay(0)");

/* Non-zero delay */

SDL_Delay(1);

SDLTest_AssertPass("Call to SDL_Delay(1)");

SDL_Delay(SDLTest_RandomIntegerInRange(5, 15));

SDLTest_AssertPass("Call to SDL_Delay()");

/* Get ticks count - should be non-zero by now */

result = SDL_GetTicks();

SDLTest_AssertPass("Call to SDL_GetTicks()");

SDLTest_AssertCheck(result > 0, "Check result value, expected: >0, got: %d", result);

/* Delay a bit longer and measure ticks and verify difference */

SDL_Delay(testDelay);

SDLTest_AssertPass("Call to SDL_Delay(%d)", testDelay);

result2 = SDL_GetTicks();

SDLTest_AssertPass("Call to SDL_GetTicks()");

SDLTest_AssertCheck(result2 > 0, "Check result value, expected: >0, got: %d", result2);

difference = result2 - result;

SDLTest_AssertCheck(difference > (testDelay - marginOfError), "Check difference, expected: >%d, got: %d", testDelay - marginOfError, difference);

SDLTest_AssertCheck(difference < (testDelay + marginOfError), "Check difference, expected: <%d, got: %d", testDelay + marginOfError, difference);

return TEST_COMPLETED;

}

/* Test callback */

Uint32 _timerTestCallback(Uint32 interval, void *param)

{

_timerCallbackCalled = 1;

if (_paramCheck != 0) {

SDLTest_AssertCheck(param != NULL, "Check param pointer, expected: non-NULL, got: %s", (param != NULL) ? "non-NULL" : "NULL");

if (param != NULL) {

SDLTest_AssertCheck(*(int *)param == _paramValue, "Check param value, expected: %i, got: %i", _paramValue, *(int *)param);

}

}

return 0;

}

/**

* @brief Call to SDL_AddTimer and SDL_RemoveTimer

*/

int

timer_addRemoveTimer(void *arg)

{

SDL_TimerID id;

SDL_bool result;

int param;

/* Reset state */

_paramCheck = 0;

_timerCallbackCalled = 0;

/* Set timer with a long delay */

id = SDL_AddTimer(10000, _timerTestCallback, NULL);

SDLTest_AssertPass("Call to SDL_AddTimer(10000,...)");

SDLTest_AssertCheck(id > 0, "Check result value, expected: >0, got: %d", id);

/* Remove timer again and check that callback was not called */

result = SDL_RemoveTimer(id);

SDLTest_AssertPass("Call to SDL_RemoveTimer()");

SDLTest_AssertCheck(result == SDL_TRUE, "Check result value, expected: %i, got: %i", SDL_TRUE, result);

SDLTest_AssertCheck(_timerCallbackCalled == 0, "Check callback WAS NOT called, expected: 0, got: %i", _timerCallbackCalled);

/* Try to remove timer again (should be a NOOP) */

result = SDL_RemoveTimer(id);

SDLTest_AssertPass("Call to SDL_RemoveTimer()");

SDLTest_AssertCheck(result == SDL_FALSE, "Check result value, expected: %i, got: %i", SDL_FALSE, result);

/* Reset state */

param = SDLTest_RandomIntegerInRange(-1024, 1024);

_paramCheck = 1;

_paramValue = param;

_timerCallbackCalled = 0;

/* Set timer with a short delay */

id = SDL_AddTimer(10, _timerTestCallback, (void *)&param);

SDLTest_AssertPass("Call to SDL_AddTimer(10, param)");

SDLTest_AssertCheck(id > 0, "Check result value, expected: >0, got: %d", id);

/* Wait to let timer trigger callback */

SDL_Delay(100);

SDLTest_AssertPass("Call to SDL_Delay(100)");

/* Remove timer again and check that callback was called */

result = SDL_RemoveTimer(id);

SDLTest_AssertPass("Call to SDL_RemoveTimer()");

SDLTest_AssertCheck(result == SDL_FALSE, "Check result value, expected: %i, got: %i", SDL_FALSE, result);

SDLTest_AssertCheck(_timerCallbackCalled == 1, "Check callback WAS called, expected: 1, got: %i", _timerCallbackCalled);

return TEST_COMPLETED;

}

/* ================= Test References ================== */

/* Timer test cases */

static const SDLTest_TestCaseReference timerTest1 =

{ (SDLTest_TestCaseFp)timer_getPerformanceCounter, "timer_getPerformanceCounter", "Call to SDL_GetPerformanceCounter", TEST_ENABLED };

static const SDLTest_TestCaseReference timerTest2 =

{ (SDLTest_TestCaseFp)timer_getPerformanceFrequency, "timer_getPerformanceFrequency", "Call to SDL_GetPerformanceFrequency", TEST_ENABLED };

static const SDLTest_TestCaseReference timerTest3 =

{ (SDLTest_TestCaseFp)timer_delayAndGetTicks, "timer_delayAndGetTicks", "Call to SDL_Delay and SDL_GetTicks", TEST_ENABLED };

static const SDLTest_TestCaseReference timerTest4 =

{ (SDLTest_TestCaseFp)timer_addRemoveTimer, "timer_addRemoveTimer", "Call to SDL_AddTimer and SDL_RemoveTimer", TEST_ENABLED };

/* Sequence of Timer test cases */

static const SDLTest_TestCaseReference *timerTests[] = {

&timerTest1, &timerTest2, &timerTest3, &timerTest4, NULL

};

/* Timer test suite (global) */

SDLTest_TestSuiteReference timerTestSuite = {

"Timer",

_timerSetUp,

timerTests,

NULL

};