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Test: Add Sin tests to math suite.
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@ -1849,6 +1849,114 @@ cos_rangeTest(void *args)
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return TEST_COMPLETED;
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}
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/* SDL_sin tests functions */
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/**
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* \brief Checks positive and negative infinity.
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*/
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static int
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sin_infCases(void *args)
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{
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double result;
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result = SDL_sin(INFINITY);
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SDLTest_AssertCheck(isnan(result),
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"Sin(%f), expected %f, got %f",
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INFINITY, NAN, result);
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result = SDL_sin(-INFINITY);
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SDLTest_AssertCheck(isnan(result),
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"Sin(%f), expected %f, got %f",
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-INFINITY, NAN, result);
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return TEST_COMPLETED;
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}
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/**
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* \brief Checks for nan.
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*/
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static int
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sin_nanCase(void *args)
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{
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const double result = SDL_sin(NAN);
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SDLTest_AssertCheck(isnan(result),
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"Sin(%f), expected %f, got %f",
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NAN, NAN, result);
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return TEST_COMPLETED;
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}
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/**
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* \brief Checks a set of regular values.
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*/
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static int
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sin_regularCases(void *args)
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{
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const d_to_d regular_cases[] = {
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{ -M_PI / 2, -1.0 },
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{ -0.0, -0.0 },
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{ 0.0, 0.0 },
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{ M_PI / 2, 1.0 }
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};
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return helper_dtod("Sin", SDL_sin, regular_cases, SDL_arraysize(regular_cases));
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}
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/**
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* \brief Checks sine precision for the first 10 decimals.
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*/
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static int
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sin_precisionTest(void *args)
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{
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Uint32 i;
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Uint32 iterations = 20;
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double angle = 0.0;
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double step = 2.0 * M_PI / iterations;
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const double expected[] = {
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0, 3090169943, 5877852522, 8090169943, 9510565162,
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10000000000, 9510565162, 8090169943, 5877852522, 3090169943,
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0, -3090169943, -5877852522, -8090169943, -9510565162,
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-10000000000, -9510565162, -8090169943, -5877852522, -3090169943
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};
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for (i = 0; i < iterations; i++, angle += step) {
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double result = SDL_sin(angle) * 1.0E10;
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SDLTest_AssertCheck(SDL_trunc(result) == expected[i],
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"Sin(%f), expected %f, got %f",
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angle, expected[i], result);
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}
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return TEST_COMPLETED;
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}
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/**
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* \brief Checks a range of values between 0 and UINT32_MAX.
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*/
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static int
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sin_rangeTest(void *args)
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{
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Uint32 i;
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double test_value = 0.0;
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SDLTest_AssertPass("Sin: Testing a range of %u values with steps of %u",
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RANGE_TEST_ITERATIONS,
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RANGE_TEST_STEP);
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for (i = 0; i < RANGE_TEST_ITERATIONS; i++, test_value += RANGE_TEST_STEP) {
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double result;
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/* These are tested elsewhere */
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if (isnan(test_value) || isinf(test_value)) {
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continue;
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}
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/* Only log failures to save performances */
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result = SDL_sin(test_value);
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if (result < -1.0 || result > 1.0) {
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SDLTest_AssertCheck(SDL_FALSE,
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"Sin(%.1f), expected [%.1f,%.1f], got %.1f",
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test_value, -1.0, 1.0, result);
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return TEST_ABORTED;
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}
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}
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return TEST_COMPLETED;
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}
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/* ================= Test References ================== */
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/* SDL_floor test cases */
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@ -2225,6 +2333,29 @@ static const SDLTest_TestCaseReference cosTestRange = {
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"Check a range of positive integer", TEST_ENABLED
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};
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/* SDL_sin test cases */
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static const SDLTest_TestCaseReference sinTestInf = {
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(SDLTest_TestCaseFp) sin_infCases, "sin_infCases",
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"Check for positive and negative infinity", TEST_ENABLED
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};
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static const SDLTest_TestCaseReference sinTestNan = {
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(SDLTest_TestCaseFp) sin_nanCase, "sin_nanCase",
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"Check the NaN special case", TEST_ENABLED
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};
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static const SDLTest_TestCaseReference sinTestRegular = {
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(SDLTest_TestCaseFp) sin_regularCases, "sin_regularCases",
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"Check a set of regular cases", TEST_ENABLED
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};
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static const SDLTest_TestCaseReference sinTestPrecision = {
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(SDLTest_TestCaseFp) sin_precisionTest, "sin_precisionTest",
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"Check sine precision to the tenth decimal", TEST_ENABLED
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};
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static const SDLTest_TestCaseReference sinTestRange = {
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(SDLTest_TestCaseFp) sin_rangeTest, "sin_rangeTest",
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"Check a range of positive integer", TEST_ENABLED
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};
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static const SDLTest_TestCaseReference *mathTests[] = {
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&floorTestInf, &floorTestZero, &floorTestNan,
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&floorTestRound, &floorTestFraction, &floorTestRange,
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@ -2269,6 +2400,9 @@ static const SDLTest_TestCaseReference *mathTests[] = {
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&cosTestInf, &cosTestNan, &cosTestRegular,
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&cosTestPrecision, &cosTestRange,
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&sinTestInf, &sinTestNan, &sinTestRegular,
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&sinTestPrecision, &sinTestRange,
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NULL
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};
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