// 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

// examples data was taken examples from https://letsencrypt.org/id/docs/a-warm-welcome-to-asn1-and-der/#explicit-vs-implicit
fn test_decode_element_with_or_without_options() ! {
    // Utf8String with tag == 12 (0c)
    original_obj := Utf8String.new('hi')!

    // without options
    normal := [u8(0x0C), 0x02, 0x68, 0x69]
    obj_1 := decode(normal)!
    assert obj_1.equal(original_obj)

    // with implicit definded as [5] IMPLICIT UTF8String was serialized into 85 02 68 69
    implicit_data := [u8(0x85), 0x02, 0x68, 0x69]
    obj_2 := decode_with_options(implicit_data, 'context_specific:5;implicit;inner:12')!

    assert obj_2.equal(original_obj)
    // dump(obj_2) // Output: obj_2: asn1.Element(Utf8String: (hi))

    // as explicit tagging defined as [5] EXPLICIT UTF8String encoded into A5 04 0C 02 68 69
    explicit_data := [u8(0xA5), 0x04, 0x0C, 0x02, 0x68, 0x69]
    obj_3 := decode_with_options(explicit_data, 'context_specific:5;explicit;inner:0x0c')!

    assert obj_3.equal(original_obj)
    // dump(obj_3) // output: obj_3: asn1.Element(Utf8String: (hi))
}