Test moving left

test/Snake/test_moving_snake.c

@@ -38,4 +38,18 @@ void test_moving_down(void){
     TEST_ASSERT_TRUE(result);
 }
 
+void test_moving_left(void){
+    /* arrange */
+    bool result;
+    Snake snake = {-1, 3, {8 + 16 * 6, 7 + 16 * 6, 6 + 16 * 6}};
+    Snake expected = {-1, 3, {7 + 16 * 6, 8 + 16 * 6, 7 + 16 * 6}};
+
+    /* act */
+    move_snake(&snake);
+    result = memcmp(&snake, &expected, sizeof(Snake)) == 0;
+
+    /* assert */
+    TEST_ASSERT_TRUE(result);
+}
+
 #endif // TEST