// Copyright (c) 2022, 2024 blackshirt. All rights reserved.
// Use of this source code is governed by a MIT License
// that can be found in the LICENSE file.
module asn1

// UTFString test
struct UTF8StringTest {
    s   string
    out []u8
    err IError
}

fn test_uf8string_handling() ! {
    data := [
        UTF8StringTest{'test', [u8(12), 4, 116, 101, 115, 116], none},
        UTF8StringTest{'abc', '\x0c\x03abc'.bytes(), none},
        // rocket := `🚀` was rune, single unicode, rocket.bytes() = [240, 159, 154, 128]
        UTF8StringTest{`🚀`.str(), [u8(12), 4, 240, 159, 154, 128], none},
        UTF8StringTest{')', '\x0c\x01)'.bytes(), none},
        UTF8StringTest{'\x13\x03ab\x00', [u8(12), 5, 19, 3, 97, 98, 0], none},
        UTF8StringTest{'Test User 1', '\x0c\x0bTest User 1'.bytes(), none},
        // invalid utf8 string, emoji with removed first and fifth byte
        UTF8StringTest{'🐶🐶🐶🚀'.substr(0, 5), []u8{}, error('Utf8String: invalid UTF-8 string')},
    ]

    for c in data {
        us := Utf8String.new(c.s) or {
            assert err == c.err
            continue
        }
        out := encode(us) or {
            assert err == c.err
            continue
        }
        assert out == c.out

        uss, _ := Utf8String.decode(out)!
        assert uss.tag().tag_number() == int(TagType.utf8string)
        assert uss.value == c.s
    }
}