feat(test_vec3): added all unit tests for vector operations

test/test_vec3.c

@@ -0,0 +1,112 @@
+#include <assert.h>
+#include <stdio.h>
+#include <math.h>
+
+#include "math/vector3.h"
+#include "test_vec3.h"
+
+void printVector3(const Vec3* v) {
+    if (!v) {
+        printf("Vector is NULL\n");
+        return;
+    }
+    printf("Vector: [%f, %f, %f]\n", v->x, v->y, v->z);
+}
+
+void addVector3_test() {
+    printf("Test: Add Vector 3D\n");
+
+    Vec3 a = {1.0f, 2.0f, 3.0f};
+    Vec3 b = {4.0f, 5.0f, 6.0f};
+
+    Vec3* result = vec3Add(&a, &b);
+    printVector3(result);
+
+    assert(result->x == 5.0f);
+    assert(result->y == 7.0f);
+    assert(result->z == 9.0f);
+
+    vec3Free(result);
+}
+
+void subVector3_test() {
+    printf("Test: Subtract Vector 3D\n");
+
+    Vec3 a = {5.0f, 6.0f, 7.0f};
+    Vec3 b = {1.0f, 2.0f, 3.0f};
+
+    Vec3* result = vec3Sub(&a, &b);
+    printVector3(result);
+
+    assert(result->x == 4.0f);
+    assert(result->y == 4.0f);
+    assert(result->z == 4.0f);
+
+    vec3Free(result);
+}
+
+void scaleVector3_test() {
+    printf("Test: Scale Vector 3D\n");
+
+    Vec3 a = {1.0f, 2.0f, 3.0f};
+    float scalar = 2.0f;
+
+    Vec3* result = vec3Scale(&a, scalar);
+    printVector3(result);
+
+    assert(result->x == 2.0f);
+    assert(result->y == 4.0f);
+    assert(result->z == 6.0f);
+
+    vec3Free(result);
+}
+
+void dotVector3_test() {
+    printf("Test: Dot Product Vector 3D\n");
+
+    Vec3 a = {1.0f, 2.0f, 3.0f};
+    Vec3 b = {4.0f, 5.0f, 6.0f};
+
+    float result = vec3Dot(&a, &b);
+    printf("Dot product: %f\n", result);
+
+    assert(result == 32.0f);
+}
+
+void lenVector3_test() {
+    printf("Test: Length of Vector 3D\n");
+
+    Vec3 a = {1.0f, 2.0f, 2.0f};
+
+    float result = vec3Len(&a);
+    printf("Length: %f\n", result);
+
+    assert(fabs(result - 3.0f) < 0.0001f);
+}
+
+void normVector3_test() {
+    printf("Test: Normalize Vector 3D\n");
+
+    Vec3 a = {3.0f, 4.0f, 0.0f};
+
+    Vec3* result = vec3Norm(&a);
+    printVector3(result);
+
+    assert(fabs(result->x - 0.6f) < 0.0001f);
+    assert(fabs(result->y - 0.8f) < 0.0001f);
+    assert(fabs(result->z - 0.0f) < 0.0001f);
+
+    vec3Free(result);
+}
+
+void distVector3_test() {
+    printf("Test: Distance between Vector 3D\n");
+
+    Vec3 a = {1.0f, 2.0f, 3.0f};
+    Vec3 b = {4.0f, 5.0f, 6.0f};
+
+    float result = vec3Dist(&a, &b);
+    printf("Distance: %f\n", result);
+
+    assert(fabs(result - 5.1962f) < 0.0001f);
+}