130 lines
4.4 KiB
C
130 lines
4.4 KiB
C
/**
|
|
* Math test suite
|
|
*/
|
|
|
|
#include <math.h>
|
|
|
|
#include "SDL.h"
|
|
#include "SDL_test.h"
|
|
|
|
/* ================= Test Case Implementation ================== */
|
|
|
|
/* SDL_floor tests functions */
|
|
|
|
/**
|
|
* \brief Checks edge cases (0 and infinity) for themselves.
|
|
*/
|
|
static int floor_edgeCases(void* args) {
|
|
double result;
|
|
|
|
result = SDL_floor(INFINITY);
|
|
SDLTest_AssertCheck(INFINITY == result, "Floor(%f), expected %f, got %f",
|
|
INFINITY, INFINITY, result);
|
|
result = SDL_floor(-INFINITY);
|
|
SDLTest_AssertCheck(-INFINITY == result, "Floor(%f), expected %f, got %f",
|
|
-INFINITY, -INFINITY, result);
|
|
|
|
result = SDL_floor(0.0);
|
|
SDLTest_AssertCheck(0.0 == result, "Floor(%.1f), expected %.1f, got %.1f",
|
|
0.0, 0.0, result);
|
|
result = SDL_floor(-0.0);
|
|
SDLTest_AssertCheck(-0.0 == result, "Floor(%.1f), expected %.1f, got %.1f",
|
|
-0.0, -0.0, result);
|
|
|
|
return TEST_COMPLETED;
|
|
}
|
|
|
|
/**
|
|
* \brief Checks the NaN case.
|
|
*/
|
|
static int floor_nanCase(void* args) {
|
|
SDLTest_AssertCheck(isnan(SDL_floor(NAN)), "Floor(nan), expected nan");
|
|
return TEST_COMPLETED;
|
|
}
|
|
|
|
/**
|
|
* \brief Checks round values (x.0) for themselves
|
|
*/
|
|
static int floor_roundNumbersCases(void* args) {
|
|
const double round_cases[] = {1.0, -1.0, 15.0, -15.0,
|
|
125.0, -125.0, 1024.0, -1024.0};
|
|
for (size_t i = 0; i < SDL_arraysize(round_cases); i++) {
|
|
const double result = SDL_floor(round_cases[i]);
|
|
SDLTest_AssertCheck(result == round_cases[i],
|
|
"Floor(%.1f), expected %.1f, got %.1f", round_cases[i],
|
|
round_cases[i], result);
|
|
}
|
|
return TEST_COMPLETED;
|
|
}
|
|
|
|
/**
|
|
* \brief Checks a set of fractions
|
|
*/
|
|
static int floor_fractionCases(void* args) {
|
|
const struct {
|
|
double input, expected;
|
|
} frac_cases[] = {{1.0 / 2.0, 0.0}, {-1.0 / 2.0, -1.0},
|
|
{4.0 / 3.0, 1.0}, {-4.0 / 3.0, -2.0},
|
|
{76.0 / 7.0, 10.0}, {-76.0 / 7.0, -11.0},
|
|
{535.0 / 8.0, 66.0}, {-535.0 / 8.0, -67.0},
|
|
{19357.0 / 53.0, 365.0}, {-19357.0 / 53.0, -366.0}};
|
|
for (size_t i = 0; i < SDL_arraysize(frac_cases); i++) {
|
|
const double result = SDL_floor(frac_cases[i].input);
|
|
SDLTest_AssertCheck(result == frac_cases[i].expected,
|
|
"Floor(%f), expected %.1f, got %f", frac_cases[i].input,
|
|
frac_cases[i].expected, result);
|
|
}
|
|
return TEST_COMPLETED;
|
|
}
|
|
|
|
/**
|
|
* \brief Checks a range of values between 0 and UINT32_MAX
|
|
*/
|
|
static int floor_rangeTest(void* args) {
|
|
const Uint32 ITERATIONS = 10000000;
|
|
const Uint32 STEP = SDL_MAX_UINT32 / ITERATIONS;
|
|
double test_value = 0.0;
|
|
SDLTest_AssertPass("Floor: Testing a range of %u values with %u steps",
|
|
ITERATIONS, STEP);
|
|
for (Uint32 i = 0; i < ITERATIONS; i++, test_value += STEP) {
|
|
double result;
|
|
/* These are tested elsewhere */
|
|
if (isnan(test_value) || isinf(test_value)) {
|
|
continue;
|
|
}
|
|
|
|
result = SDL_floor(test_value);
|
|
if (result != test_value) { /* Only log failures to save performances */
|
|
SDLTest_AssertPass("Floor(%.1f), expected %.1f, got %.1f", test_value,
|
|
test_value, result);
|
|
return TEST_ABORTED;
|
|
}
|
|
}
|
|
return TEST_COMPLETED;
|
|
}
|
|
|
|
/* ================= Test References ================== */
|
|
|
|
/* SDL_floor test cases */
|
|
|
|
static const SDLTest_TestCaseReference floorTest1 = {
|
|
(SDLTest_TestCaseFp)floor_edgeCases, "floor_edgeCases",
|
|
"Check positive and negative infinity and 0", TEST_ENABLED};
|
|
static const SDLTest_TestCaseReference floorTest2 = {
|
|
(SDLTest_TestCaseFp)floor_nanCase, "floor_nanCase",
|
|
"Check the NaN special case", TEST_ENABLED};
|
|
static const SDLTest_TestCaseReference floorTest3 = {
|
|
(SDLTest_TestCaseFp)floor_roundNumbersCases, "floor_roundNumberCases",
|
|
"Check a set of round numbers", TEST_ENABLED};
|
|
static const SDLTest_TestCaseReference floorTest4 = {
|
|
(SDLTest_TestCaseFp)floor_fractionCases, "floor_fractionCases",
|
|
"Check a set of fractions", TEST_ENABLED};
|
|
static const SDLTest_TestCaseReference floorTest5 = {
|
|
(SDLTest_TestCaseFp)floor_rangeTest, "floor_rangeTest",
|
|
"Check a range of positive integer", TEST_ENABLED};
|
|
|
|
static const SDLTest_TestCaseReference* mathTests[] = {
|
|
&floorTest1, &floorTest2, &floorTest3, &floorTest4, &floorTest5, NULL};
|
|
|
|
SDLTest_TestSuiteReference mathTestSuite = {"Math", NULL, mathTests, NULL};
|