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Test: Add Acos tests to math suite.

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Pierre Wendling 2022-05-21 21:51:48 -04:00 committed by Sam Lantinga
parent 95f6edb9a5
commit 43f6983a24
1 changed files with 107 additions and 0 deletions
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107
test/testautomation_math.c
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@ -2073,6 +2073,92 @@ tan_precisionTest(void *args)
return helper_dtod_approx("Tan", SDL_tan, precision_cases, SDL_arraysize(precision_cases));
}
/* SDL_acos tests functions */
/**
* \brief Checks limits of the domain (+/-1).
*/
static int
acos_limitCases(void *args)
{
double result;
result = SDL_acos(1.0);
SDLTest_AssertCheck(0.0 == result,
"Acos(%f), expected %f, got %f",
1.0, 0.0, result);
result = SDL_acos(-1.0);
SDLTest_AssertCheck(M_PI == result,
"Acos(%f), expected %f, got %f",
-1.0, M_PI, result);
return TEST_COMPLETED;
}
/**
* \brief Checks values outside the domain (|x| > 1).
*/
static int
acos_outOfDomainCases(void *args)
{
double result;
result = SDL_acos(1.1);
SDLTest_AssertCheck(isnan(result),
"Acos(%f), expected %f, got %f",
1.1, NAN, result);
result = SDL_acos(-1.1);
SDLTest_AssertCheck(isnan(result),
"Acos(%f), expected %f, got %f",
-1.1, NAN, result);
return TEST_COMPLETED;
}
/**
* \brief Checks for nan.
*/
static int
acos_nanCase(void *args)
{
const double result = SDL_acos(NAN);
SDLTest_AssertCheck(isnan(result),
"Acos(%f), expected %f, got %f",
NAN, NAN, result);
return TEST_COMPLETED;
}
/**
* \brief Checks arc cosine precision for the first 10 decimals.
*/
static int
acos_precisionTest(void *args)
{
const d_to_d precision_cases[] = {
{ 0.1, 14706289056.0 },
{ 0.2, 13694384060.0 },
{ 0.3, 12661036727.0 },
{ 0.4, 11592794807.0 },
{ 0.5, 10471975511.0 },
{ 0.6, 9272952180.0 },
{ 0.7, 7953988301.0 },
{ 0.8, 6435011087.0 },
{ 0.9, 4510268117.0 },
{ -0.1, 16709637479.0 },
{ -0.2, 17721542475.0 },
{ -0.3, 18754889808.0 },
{ -0.4, 19823131728.0 },
{ -0.5, 20943951023.0 },
{ -0.6, 22142974355.0 },
{ -0.7, 23461938234.0 },
{ -0.8, 24980915447.0 },
{ -0.9, 26905658417.0 },
};
return helper_dtod_approx("Acos", SDL_acos, precision_cases, SDL_arraysize(precision_cases));
}
/* ================= Test References ================== */
/* SDL_floor test cases */
@ -2491,6 +2577,25 @@ static const SDLTest_TestCaseReference tanTestPrecision = {
"Check tane precision to the tenth decimal", TEST_ENABLED
};
/* SDL_acos test cases */
static const SDLTest_TestCaseReference acosTestLimit = {
(SDLTest_TestCaseFp) acos_limitCases, "acos_limitCases",
"Check the edge of the domain (+/-1)", TEST_ENABLED
};
static const SDLTest_TestCaseReference acosTestOutOfDomain = {
(SDLTest_TestCaseFp) acos_outOfDomainCases, "acos_outOfDomainCases",
"Check a for value outside the domain", TEST_ENABLED
};
static const SDLTest_TestCaseReference acosTestNan = {
(SDLTest_TestCaseFp) acos_nanCase, "acos_nanCase",
"Check the NaN special case", TEST_ENABLED
};
static const SDLTest_TestCaseReference acosTestPrecision = {
(SDLTest_TestCaseFp) acos_precisionTest, "acos_precisionTest",
"Check acos precision to the tenth decimal", TEST_ENABLED
};
static const SDLTest_TestCaseReference *mathTests[] = {
&floorTestInf, &floorTestZero, &floorTestNan,
&floorTestRound, &floorTestFraction, &floorTestRange,
@ -2540,6 +2645,8 @@ static const SDLTest_TestCaseReference *mathTests[] = {
&tanTestInf, &tanTestNan, &tanTestZero, &tanTestPrecision,
&acosTestLimit, &acosTestOutOfDomain, &acosTestNan, &acosTestPrecision,
NULL
};