import testparser;
import std.stdio;

int main()
{
    return 0;
}

unittest
{
    alias Result = Testparser.Decoder.Result;
    Result result;
    Testparser.CodePoint code_point;
    ubyte code_point_length;

    result = Testparser.Decoder.decode_code_point("5", code_point, code_point_length);
    assert(result == Result.SUCCESS);
    assert(code_point == '5');
    assert(code_point_length == 1u);

    result = Testparser.Decoder.decode_code_point("", code_point, code_point_length);
    assert(result == Result.EOF);

    result = Testparser.Decoder.decode_code_point("\xC2\xA9", code_point, code_point_length);
    assert(result == Result.SUCCESS);
    assert(code_point == 0xA9u);
    assert(code_point_length == 2u);

    result = Testparser.Decoder.decode_code_point("\xf0\x9f\xa7\xa1", code_point, code_point_length);
    assert(result == Result.SUCCESS);
    assert(code_point == 0x1F9E1u);
    assert(code_point_length == 4u);

    result = Testparser.Decoder.decode_code_point("\xf0\x9f\x27", code_point, code_point_length);
    assert(result == Result.DECODE_ERROR);

    result = Testparser.Decoder.decode_code_point("\xf0\x9f\xa7\xFF", code_point, code_point_length);
    assert(result == Result.DECODE_ERROR);

    result = Testparser.Decoder.decode_code_point("\xfe", code_point, code_point_length);
    assert(result == Result.DECODE_ERROR);
}

unittest
{
    alias Result = Testparser.Lexer.Result;
    string input = "5 + 4 * \n677 + 567";
    Testparser.Lexer lexer = new Testparser.Lexer(input);
    assert(lexer.lex_token() == Result(Result.Type.TOKEN, 0, 0, 1, Testparser.TOKEN_int));
    assert(lexer.lex_token() == Result(Result.Type.TOKEN, 0, 2, 1, Testparser.TOKEN_plus));
    assert(lexer.lex_token() == Result(Result.Type.TOKEN, 0, 4, 1, Testparser.TOKEN_int));
    assert(lexer.lex_token() == Result(Result.Type.TOKEN, 0, 6, 1, Testparser.TOKEN_times));
    assert(lexer.lex_token() == Result(Result.Type.TOKEN, 1, 0, 3, Testparser.TOKEN_int));
    assert(lexer.lex_token() == Result(Result.Type.TOKEN, 1, 4, 1, Testparser.TOKEN_plus));
    assert(lexer.lex_token() == Result(Result.Type.TOKEN, 1, 6, 3, Testparser.TOKEN_int));
    assert(lexer.lex_token() == Result(Result.Type.TOKEN, 1, 9, 0, Testparser.TOKEN___EOF));

    lexer = new Testparser.Lexer("");
    assert(lexer.lex_token() == Result(Result.Type.TOKEN, 0, 0, 0, Testparser.TOKEN___EOF));
}