Test moving down

test/Snake/test_moving_snake.c

@@ -21,7 +21,21 @@ void test_moving_right(void){
     result = memcmp(&snake, &expected, sizeof(Snake)) == 0;
 
     /* assert */
-    TEST_ASSERT_TRUE(result);//head collides with body
+    TEST_ASSERT_TRUE(result);
+}
+
+void test_moving_down(void){
+    /* arrange */
+    bool result;
+    Snake snake = {16, 3, {8 + 16 * 6, 7 + 16 * 6, 6 + 16 * 6}};
+    Snake expected = {16, 3, {8 + 16 * 7, 8 + 16 * 6, 7 + 16 * 6}};
+
+    /* act */
+    move_snake(&snake);
+    result = memcmp(&snake, &expected, sizeof(Snake)) == 0;
+
+    /* assert */
+    TEST_ASSERT_TRUE(result);
 }
 
 #endif // TEST