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path: root/ext/XS-APItest/t/locale.t
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BEGIN {
    require '../../t/test.pl';
    require '../../t/loc_tools.pl'; # to find locales
}

use XS::APItest;
use Config;

skip_all("locales not available") unless locales_enabled('LC_NUMERIC');

my @locales = eval { find_locales( &LC_NUMERIC ) };
skip_all("no LC_NUMERIC locales available") unless @locales;

my $comma_locale;
for my $locale (@locales) {
    use POSIX;
    use locale;
    setlocale(LC_NUMERIC, $locale) or next;
    my $in = 4.2; # avoid any constant folding bugs
    my $s = sprintf("%g", $in);
    if ($s eq "4,2")  {
        $comma_locale = $locale;
        last;
    }
}


SKIP: {
      if ($Config{usequadmath}) {
            skip "no gconvert with usequadmath", 2;
      }
      is(test_Gconvert(4.179, 2), "4.2", "Gconvert doesn't recognize underlying locale outside 'use locale'");
      use locale;
      is(test_Gconvert(4.179, 2), "4.2", "Gconvert doesn't recognize underlying locale inside 'use locale'");
}

sub check_in_bounds($$$) {
    my ($value, $lower, $upper) = @_;

    $value >= $lower && $value <= $upper
}

SKIP: {
    # This checks that when switching to the global locale, the service that
    # Perl provides of transparently dealing with locales that have a non-dot
    # radix is turned off, but gets turned on again after a sync_locale();

    skip "no locale with a comma radix available", 5 unless $comma_locale;

    my $global_locale = switch_to_global_and_setlocale(LC_NUMERIC,
                                                       $comma_locale);
    # Can't do a compare of $global_locale and $comma_locale because what the
    # system returns may be an alias.  ALl we can do is test for
    # success/failure
    ok($global_locale, "Successfully switched to $comma_locale");
    is(newSvNV("4.888"), 4, "dot not recognized in global comma locale for SvNV");

    no warnings 'numeric';  # Otherwise get "Argument isn't numeric in
                            # subroutine entry"

    is(check_in_bounds(newSvNV("4,888"), 4.88, 4.89), 1,
       "comma recognized in global comma locale for SvNV");
    isnt(sync_locale, 0, "sync_locale() returns that was in the global locale");

    TODO: {
        local $TODO = "GH #20565";

        is(check_in_bounds(newSvNV("4.888"), 4.88, 4.89), 1,
        "dot recognized in perl-controlled comma locale for SvNV");
    }
}

my %correct_C_responses = (
        # Entries that are undef could have varying returns
                            ABDAY_1 => 'Sun',
                            ABDAY_2 => 'Mon',
                            ABDAY_3 => 'Tue',
                            ABDAY_4 => 'Wed',
                            ABDAY_5 => 'Thu',
                            ABDAY_6 => 'Fri',
                            ABDAY_7 => 'Sat',
                            ABMON_1 => 'Jan',
                            ABMON_2 => 'Feb',
                            ABMON_3 => 'Mar',
                            ABMON_4 => 'Apr',
                            ABMON_5 => 'May',
                            ABMON_6 => 'Jun',
                            ABMON_7 => 'Jul',
                            ABMON_8 => 'Aug',
                            ABMON_9 => 'Sep',
                            ABMON_10 => 'Oct',
                            ABMON_11 => 'Nov',
                            ABMON_12 => 'Dec',
                            ALT_DIGITS => undef,
                            AM_STR => 'AM',
                            CODESET => undef,
                            CRNCYSTR => undef,
                            DAY_1 => 'Sunday',
                            DAY_2 => 'Monday',
                            DAY_3 => 'Tuesday',
                            DAY_4 => 'Wednesday',
                            DAY_5 => 'Thursday',
                            DAY_6 => 'Friday',
                            DAY_7 => 'Saturday',
                            D_FMT => undef,
                            D_T_FMT => undef,
                            ERA => '',
                            ERA_D_FMT => undef,
                            ERA_D_T_FMT => undef,
                            ERA_T_FMT => undef,
                            MON_1 => 'January',
                            MON_2 => 'February',
                            MON_3 => 'March',
                            MON_4 => 'April',
                            MON_5 => 'May',
                            MON_6 => 'June',
                            MON_7 => 'July',
                            MON_8 => 'August',
                            MON_9 => 'September',
                            MON_10 => 'October',
                            MON_11 => 'November',
                            MON_12 => 'December',
                            NOEXPR => undef,
                            NOSTR => undef,
                            PM_STR => 'PM',
                            RADIXCHAR => '.',
                            THOUSEP => '',
                            T_FMT => undef,
                            T_FMT_AMPM => undef,
                            YESEXPR => undef,
                            YESSTR => undef,
                        );

my $hdr = "../../perl_langinfo.h";
open my $fh, "<", $hdr;
$|=1;

SKIP: {
    skip "No LC_ALL", 1 unless locales_enabled('LC_ALL');

    use POSIX;
    setlocale(LC_ALL, "C");
    eval "use I18N::Langinfo qw(langinfo RADIXCHAR); langinfo(RADIXCHAR)";
    my $has_nl_langinfo = $@ eq "";

    skip "Can't open $hdr for reading: $!", 1 unless $fh;

    my %items;

    # Find all the current items from the header, and their values.
    # For non-nl_langinfo systems, those values are arbitrary negative numbers
    # set in the header.  Otherwise they are the nl_langinfo approved values,
    # which for the moment is the item name.
    # The relevant lines look like: #  define YESSTR -54
    while (<$fh>) {
        chomp;
        next unless / - \d+ $ /x;
        s/ ^ \# \s* define \s*//x;
        m/ (.*) \  (.*) /x;
        $items{$1} = ($has_nl_langinfo)
                     ? $1       # Yields 'YESSTR'
                     : $2;      # Yields -54
    }

    # Get the translation from item name to numeric value.
    I18N::Langinfo->import(keys %items) if $has_nl_langinfo;

    foreach my $formal_item (sort keys %items) {
      SKIP:
        if (exists $correct_C_responses{$formal_item}) {
            my $correct = $correct_C_responses{$formal_item};
            my $item = eval $items{$formal_item};
            skip "This platform apparently doesn't support $formal_item", 1 if $@;
            my $result = test_Perl_langinfo($item);
            if (defined $correct) {
                is ($result, $correct,
                    "Returns expected value" . "('$correct') for $formal_item");
            }
            elsif (defined $result) {
                pass("Returns a value (in this case '$result') for $formal_item");
            }
            else {
                fail("Returned undef for $formal_item");
            }
        }
    }
}

done_testing();