/*  Part of SWI-Prolog

    Author:        Jan Wielemaker
    E-mail:        jan@swi-prolog.org
    WWW:           http://www.swi-prolog.org
    Copyright (c)  2022-2023, SWI-Prolog Solutions b.v.
    All rights reserved.

    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:

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       notice, this list of conditions and the following disclaimer.

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       notice, this list of conditions and the following disclaimer in
       the documentation and/or other materials provided with the
       distribution.

    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
    FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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*/

:- module(test_unicode,
          [ test_unicode/0
          ]).
:- use_module(library(plunit)).
:- encoding(utf8).

/** <module> Unicode parsing tests

*/

test_unicode :-
    run_tests([ numbers,
		unicode_preds
	      ]).

:- begin_tests(numbers).

test(read, error(syntax_error(illegal_character))) :-
    term_string(_, "٠١٢٣٤٥٦٧٨٩").
test(number_codes, N == 0123456789) :-
    number_codes(N, `٠١٢٣٤٥٦٧٨٩`).
test(atom_number, N == 0123456789) :-
    atom_number('٠١٢٣٤٥٦٧٨٩', N).
test(string_number, N == 0123456789) :-
    number_string(N, "٠١٢٣٤٥٦٧٨٩").
test(string_number, N == 12.3456789) :-
    number_string(N, "١٢.٣٤٥٦٧٨٩").
test(string_number, N == -12.34567e89) :-
    number_string(N, "-١٢.٣٤٥٦٧e٨٩").
test(string_number, N == -12.34567e-89) :-
    number_string(N, "-١٢.٣٤٥٦٧e-٨٩").

:- end_tests(numbers).

:- begin_tests(unicode_preds).

test(atom_length, Len == 1) :-
    atom_length('\U0001F600', Len).
test(string_length, Len == 1) :-
    atom_length('\U0001F600', Len).

:- end_tests(unicode_preds).
