void test_values() {
    tbl->store(state, Fixnum::from(0), Fixnum::from(1));
    tbl->store(state, Fixnum::from(2), Fixnum::from(3));
    Array* ary = tbl->values(state);

    TS_ASSERT_EQUALS(ary->size(), 2);
    TS_ASSERT_EQUALS(ary->get(state, 0), Fixnum::from(1));
    TS_ASSERT_EQUALS(ary->get(state, 1), Fixnum::from(3));
  }