27     boost::hash<std::optional<int> > hasher;  in test_optional_int()  local
29     BOOST_TEST(hasher(x1a) == hasher(x1a));  in test_optional_int()
30     BOOST_TEST(hasher(x1a) == hasher(x1b));  in test_optional_int()
31     BOOST_TEST(hasher(x1a) != hasher(x2a));  in test_optional_int()
32     BOOST_TEST(hasher(x1a) != hasher(x3));  in test_optional_int()
33     BOOST_TEST(hasher(x2a) == hasher(x2a));  in test_optional_int()
34     BOOST_TEST(hasher(x2b) == hasher(x2b));  in test_optional_int()
35     BOOST_TEST(hasher(x2a) != hasher(x3));  in test_optional_int()
36     BOOST_TEST(hasher(x3) == hasher(x3));  in test_optional_int()
47     boost::hash<std::optional<std::string> > hasher;  in test_optional_string()  local
49     BOOST_TEST(hasher(x1a) == hasher(x1a));  in test_optional_string()
50     BOOST_TEST(hasher(x1a) == hasher(x1b));  in test_optional_string()
51     BOOST_TEST(hasher(x1a) != hasher(x2a));  in test_optional_string()
52     BOOST_TEST(hasher(x1a) != hasher(x3));  in test_optional_string()
53     BOOST_TEST(hasher(x2a) == hasher(x2a));  in test_optional_string()
54     BOOST_TEST(hasher(x2b) == hasher(x2b));  in test_optional_string()
55     BOOST_TEST(hasher(x2a) != hasher(x3));  in test_optional_string()
56     BOOST_TEST(hasher(x3) == hasher(x3));  in test_optional_string()