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Test: Add Floor tests to math.

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Pierre Wendling 2022-05-04 12:40:24 -04:00 committed by Sam Lantinga
parent b72b5d0f99
commit b3faebb8a8
1 changed files with 108 additions and 1 deletions
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109
test/testautomation_math.c
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@ -5,6 +5,113 @@
#include "SDL.h"
#include "SDL_test.h"
static const SDLTest_TestCaseReference* mathTests[] = {NULL};
/* ================= Test Case Implementation ================== */
/* SDL_floor tests functions */
/**
* \brief Checks edge cases (0 and infinity) for themselves.
*/
static int floor_edgeCases(void* args) {
static const double edge_cases[] = {INFINITY, -INFINITY, 0.0, -0.0};
for (size_t i = 0; i < SDL_arraysize(edge_cases); i++) {
const double result = SDL_floor(edge_cases[i]);
SDLTest_AssertCheck(result == edge_cases[i],
"Floor(%.1f), expected %.1f, got %.1f", edge_cases[i],
edge_cases[i], 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) {
static 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) {
static 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) {
static const Uint32 ITERATIONS = 10000000;
static const Uint32 STEP = UINT32_MAX / 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) {
/* These are tested elsewhere */
if (isnan(test_value) || isinf(test_value)) {
continue;
}
const double 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};