    @Test
    public void getUsers() {

        //expected
        List<User> expected = new ArrayList<>();
        expected.add(new User(1L, "user1", "user1@mail.com", "pass"));
        expected.add(new User(2L, "user2", "user2@mail.com", "test"));

        //actual
        List<User> actual = userService.getUsers();

        //assert
        assertEquals(expected, actual);
    }