test: add tests for vectors

tests/test_vector.c

@@ -1,13 +1,176 @@
-#include <assert.h>
+#include "unity.h"
 #include "curtle/vector.h"
 
-int main()
+void setUp(void)
+{
+}
+
+void tearDown(void)
+{
+}
+
+void test_vec2_add()
 {
 	struct vec2 a = { 1, 2 };
 	struct vec2 b = { 3, 4 };
 
 	struct vec2 r = vec2_add(a, b);
 
-	assert(r.x == 4);
-	assert(r.y == 6);
+	struct vec2 e = { 4, 6 };
+	TEST_ASSERT_EQUAL_MEMORY(&e, &r, 8);
+}
+
+void test_vec2_sub()
+{
+	struct vec2 a = { 1, 2 };
+	struct vec2 b = { 3, 4 };
+
+	struct vec2 r = vec2_sub(a, b);
+
+	struct vec2 e = { -2, -2 };
+	TEST_ASSERT_EQUAL_MEMORY(&e, &r, 8);
+}
+
+void test_vec2_dot()
+{
+	struct vec2 a = { 1, 2 };
+	struct vec2 b = { 3, 4 };
+
+	float r = vec2_dot(a, b);
+
+	TEST_ASSERT_EQUAL_FLOAT(11, r);
+}
+
+void test_vec2_det()
+{
+	struct vec2 a = { 1, 2 };
+	struct vec2 b = { 3, 4 };
+
+	float r = vec2_det(a, b);
+
+	TEST_ASSERT_EQUAL_FLOAT(-2, r);
+}
+
+void test_vec2_scale()
+{
+	struct vec2 a = { 1, 2 };
+	float s = 2;
+
+	struct vec2 r = vec2_scale(a, 2);
+
+	struct vec2 e = { 2, 4 };
+	TEST_ASSERT_EQUAL_MEMORY(&e, &r, 8);
+}
+
+void test_vec2_len()
+{
+	struct vec2 a = { 4, 3 };
+
+	float r = vec2_len(a);
+
+	TEST_ASSERT_EQUAL_FLOAT(5, r);
+}
+
+void test_vec2_normalize()
+{
+	struct vec2 a = { 4, 0 };
+
+	struct vec2 r = vec2_normalize(a);
+
+	struct vec2 e = { 1, 0 };
+	TEST_ASSERT_EQUAL_MEMORY(&e, &r, 8);
+}
+
+void test_vec3_add()
+{
+	struct vec3 a = { 1, 2, 5 };
+	struct vec3 b = { 3, 4, 2 };
+
+	struct vec3 r = vec3_add(a, b);
+
+	struct vec3 e = { 4, 6, 7 };
+	TEST_ASSERT_EQUAL_MEMORY(&e, &r, 12);
+}
+
+void test_vec3_sub()
+{
+	struct vec3 a = { 1, 2, 5 };
+	struct vec3 b = { 3, 4, 2 };
+
+	struct vec3 r = vec3_sub(a, b);
+
+	struct vec3 e = { -2, -2, 3 };
+	TEST_ASSERT_EQUAL_MEMORY(&e, &r, 12);
+}
+
+void test_vec3_dot()
+{
+	struct vec3 a = { 1, 2, 5 };
+	struct vec3 b = { 3, 4, 2 };
+
+	float r = vec3_dot(a, b);
+
+	TEST_ASSERT_EQUAL_FLOAT(21, r);
+}
+
+void test_vec3_cross()
+{
+	struct vec3 a = { 1, 2, 5 };
+	struct vec3 b = { 3, 4, 2 };
+
+	struct vec3 r = vec3_cross(a, b);
+
+	struct vec3 e = { -16, 13, -2 };
+	TEST_ASSERT_EQUAL_MEMORY(&e, &r, 12);
+}
+
+
+void test_vec3_scale()
+{
+	struct vec3 a = { 1, 2, 5 };
+	float s = 2;
+
+	struct vec3 r = vec3_scale(a, 2);
+
+	struct vec3 e = { 2, 4, 10 };
+	TEST_ASSERT_EQUAL_MEMORY(&e, &r, 12);
+}
+
+void test_vec3_len()
+{
+	struct vec3 a = { 4, 3, 12 };
+
+	float r = vec3_len(a);
+
+	TEST_ASSERT_EQUAL_FLOAT(13, r);
+}
+
+void test_vec3_normalize()
+{
+	struct vec3 a = { 1, 2, 2 };
+
+	struct vec3 r = vec3_normalize(a);
+
+	struct vec3 e = { 1.f / 3.f, 2.f / 3.f, 2.f / 3.f };
+	TEST_ASSERT_EQUAL_MEMORY(&e, &r, 12);
+}
+
+int main(void)
+{
+	UNITY_BEGIN();
+	RUN_TEST(test_vec2_add);
+	RUN_TEST(test_vec2_sub);
+	RUN_TEST(test_vec2_dot);
+	RUN_TEST(test_vec2_det);
+	RUN_TEST(test_vec2_scale);
+	RUN_TEST(test_vec2_len);
+	RUN_TEST(test_vec2_normalize);
+	RUN_TEST(test_vec3_add);
+	RUN_TEST(test_vec3_sub);
+	RUN_TEST(test_vec3_dot);
+	RUN_TEST(test_vec3_cross);
+	RUN_TEST(test_vec3_scale);
+	RUN_TEST(test_vec3_len);
+	RUN_TEST(test_vec3_normalize);
+	return UNITY_END();
 }