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LEFTONE/util/math/test.c
falsycat 84c3a02b9a [RELEASE] u22-v03
This version is submitted to U22 breau.
2020-09-14 00:00:00 +00:00

112 lines
2.7 KiB
C

#undef NDEBUG
#include <assert.h>
#include <math.h>
#include <float.h>
#include <stdbool.h>
#include <stdio.h>
#include "./algorithm.h"
#include "./matrix.h"
#include "./rational.h"
#include "./vector.h"
static bool vec4_is_equal(vec4_t v1, vec4_t v2) {
return
MATH_FLOAT_EQUAL(v1.x, v2.x) &&
MATH_FLOAT_EQUAL(v1.y, v2.y) &&
MATH_FLOAT_EQUAL(v1.z, v2.z) &&
MATH_FLOAT_EQUAL(v1.w, v2.w);
}
static void test_matrix() {
vec4_t v1, v2;
mat4_t m1, m2, m3;
v1 = vec4(1, 1, 1, 1);
m1 = mat4_identity();
mat4_mul_vec4(&v2, &m1, &v1);
assert(vec4_is_equal(v2, v1));
v1 = vec4(1, 1, 1, 1);
m1 = mat4_translation(1, 1, 1);
mat4_mul_vec4(&v2, &m1, &v1);
assert(vec4_is_equal(v2, vec4(2, 2, 2, 1)));
v1 = vec4(1, 1, 1, 1);
m1 = mat4_scale(.5f, 2, 1);
mat4_mul_vec4(&v2, &m1, &v1);
assert(vec4_is_equal(v2, vec4(.5f, 2, 1, 1)));
v1 = vec4(0, 1, 0, 1);
m1 = mat4_rotation_x(-1 /* = sin -PI/2 */, 0 /* = cos -PI/2 */);
mat4_mul_vec4(&v2, &m1, &v1);
assert(vec4_is_equal(v2, vec4(0, 0, -1, 1)));
v1 = vec4(1, 0, 0, 1);
m1 = mat4_rotation_y(1 /* = sin PI/2 */, 0 /* = cos PI/2 */);
mat4_mul_vec4(&v2, &m1, &v1);
assert(vec4_is_equal(v2, vec4(0, 0, -1, 1)));
v1 = vec4(0, 0, -1, 1);
m1 = mat4_rotation_z(1 /* = sin PI/2 */, 0 /* = cos PI/2 */);
mat4_mul_vec4(&v2, &m1, &v1);
assert(vec4_is_equal(v2, vec4(0, 0, -1, 1)));
v1 = vec4(-1, 1, 0, 1);
m1 = mat4_rotation_z(1 /* = sin PI/2 */, 0 /* = cos PI/2 */);
m2 = mat4_scale(.5f, .5f, .5f);
mat4_mul(&m3, &m2, &m1);
m1 = mat4_translation(1, 1, 0);
mat4_mul(&m2, &m1, &m3);
mat4_mul_vec4(&v2, &m2, &v1);
assert(vec4_is_equal(v2, vec4(.5f, .5f, 0, 1)));
}
static void test_algorithm(void) {
assert(math_int32_next_power2(8) == 8);
assert(math_int32_next_power2(20) == 32);
assert(math_int32_next_power2(200) == 256);
assert(math_int32_gcd(10, 5) == 5);
assert(math_int32_gcd(12, 6) == 6);
assert(math_int32_gcd(12, 9) == 3);
assert(math_int32_gcd(12, 11) == 1);
assert(math_int32_lcm(10, 5) == 10);
assert(math_int32_lcm(12, 10) == 60);
assert(math_int32_lcm(7, 8) == 56);
}
static void test_rational(void) {
rational_t x, y;
x = rational(1, 2);
y = rational(1, 4);
rational_addeq(&x, &y);
assert(x.num == 3 && x.den == 4);
x = rational(1, 2);
y = rational(1, 3);
rational_muleq(&x, &y);
assert(x.num == 1 && x.den == 6);
x = rational(10, 20);
rational_simplify(&x);
assert(x.num == 1 && x.den == 2);
x = rational(1, 2);
rational_normalize(&x, 100);
assert(x.num == 50 && x.den == 100);
x = rational(1, 2);
assert(rational_calculate(&x) == 1.0f/2.0f);
}
int main(void) {
test_matrix();
test_algorithm();
test_rational();
return 0;
}