import 'dart:typed_data';

import 'package:pointycastle/asn1/primitives/asn1_object_identifier.dart';
import 'package:pointycastle/asn1/unsupported_object_identifier_exception.dart';
import 'package:test/test.dart';

void main() {
  test('Test named constructor fromBytes', () {
    var bytes = Uint8List.fromList([0x06, 0x03, 0x55, 0x04, 0x03]);

    var valueBytes = Uint8List.fromList([0x55, 0x04, 0x03]);

    var asn1Object = ASN1ObjectIdentifier.fromBytes(bytes);
    expect(asn1Object.tag, 6);
    expect(asn1Object.isConstructed, false);
    expect(asn1Object.encodedBytes, bytes);
    expect(asn1Object.valueByteLength, 3);
    expect(asn1Object.valueStartPosition, 2);
    expect(asn1Object.valueBytes, valueBytes);
    expect(asn1Object.objectIdentifier!.length, 4);
    expect(asn1Object.objectIdentifier!.elementAt(0), 2);
    expect(asn1Object.objectIdentifier!.elementAt(1), 5);
    expect(asn1Object.objectIdentifier!.elementAt(2), 4);
    expect(asn1Object.objectIdentifier!.elementAt(3), 3);
    expect(asn1Object.objectIdentifierAsString, '2.5.4.3');
  });

  test('Test encode', () {
    var oiBytes = Uint8List.fromList([2, 5, 4, 3]);
    var asn1Object = ASN1ObjectIdentifier(oiBytes);

    var bytes = Uint8List.fromList([0x06, 0x03, 0x55, 0x04, 0x03]);

    expect(asn1Object.encode(), bytes);
  });

  test('Test named constructor fromName', () {
    var asn1Object = ASN1ObjectIdentifier.fromName('commonName');
    expect(asn1Object.objectIdentifierAsString, '2.5.4.3');
    expect(asn1Object.readableName, 'commonName');
    expect(asn1Object.objectIdentifier, [2, 5, 4, 3]);

    try {
      ASN1ObjectIdentifier.fromName('foo1234bar1234');
      fail('Exptected UnsupportedObjectIdentifierException');
    } on UnsupportedObjectIdentifierException {
      // Expected
    } on Exception {
      fail('Exptected UnsupportedObjectIdentifierException');
    }
  });

  test('Test named constructor fromIdentifierString', () {
    var bytes = Uint8List.fromList([0x06, 0x03, 0x55, 0x04, 0x03]);

    var valueBytes = Uint8List.fromList([0x55, 0x04, 0x03]);

    var asn1Object = ASN1ObjectIdentifier.fromIdentifierString('2.5.4.3');
    expect(asn1Object.tag, 6);
    expect(asn1Object.encode(), bytes);
    expect(asn1Object.valueByteLength, 3);
    expect(asn1Object.valueStartPosition, 2);
    expect(asn1Object.valueBytes, valueBytes);
    expect(asn1Object.objectIdentifier!.length, 4);
    expect(asn1Object.objectIdentifier!.elementAt(0), 2);
    expect(asn1Object.objectIdentifier!.elementAt(1), 5);
    expect(asn1Object.objectIdentifier!.elementAt(2), 4);
    expect(asn1Object.objectIdentifier!.elementAt(3), 3);
    expect(asn1Object.objectIdentifierAsString, '2.5.4.3');
  });

  test('Test dump', () {
    var expected = '''OBJECT IDENTIFIER 2.5.4.3 commonName''';
    var bytes = Uint8List.fromList([0x06, 0x03, 0x55, 0x04, 0x03]);

    var asn1Object = ASN1ObjectIdentifier.fromBytes(bytes);
    expect(asn1Object.dump(), expected);
  });
}