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|
# -*- mode: perl; -*-
use strict;
use warnings;
use Test::More tests => 41897;
###############################################################################
# Read and load configuration file and backend library.
use Config::Tiny ();
my $config_file = 'xt/author/lib.ini';
my $config = Config::Tiny -> read('xt/author/lib.ini')
or die Config::Tiny -> errstr();
# Read the library to test.
our $LIB = $config->{_}->{lib};
die "No library defined in file '$config_file'"
unless defined $LIB;
die "Invalid library name '$LIB' in file '$config_file'"
unless $LIB =~ /^[A-Za-z]\w*(::\w+)*\z/;
# Load the library.
eval "require $LIB";
die $@ if $@;
###############################################################################
can_ok($LIB, '_digit');
use lib 't';
use Math::BigInt::Lib::TestUtil qw< randstr >;
# Generate test data.
my @data;
sub add_test_cases {
my $x = shift;
my $n = length $x;
# Digits from right to left (positive index 0 .. N-1).
for (my $i = 0 ; $i < $n ; ++$i) {
my $digit = substr $x, $n - 1 - $i, 1;
push @data, [ $x, $i, $digit ];
}
# Digits from left to right (negative index -1 .. -N).
for (my $i = -1 ; $i >= -$n ; --$i) {
my $digit = substr $x, -1 - $i, 1;
push @data, [ $x, $i, $digit ];
}
}
for (my $x = 0 ; $x <= 100 ; ++ $x) {
add_test_cases(sprintf "%u", $x);
}
for (my $n = 4 ; $n <= 100 ; ++ $n) {
add_test_cases(randstr($n, 10));
}
# List context.
for (my $i = 0 ; $i <= $#data ; ++ $i) {
my ($in0, $in1, $out0) = @{ $data[$i] };
my ($x, @got);
my $test = qq|\$x = $LIB->_new("$in0"); |
. qq|\@got = $LIB->_digit(\$x, $in1);|;
diag("\n$test\n\n") if $ENV{AUTHOR_DEBUGGING};
eval $test;
is($@, "", "'$test' gives emtpy \$\@");
subtest "_digit() in list context: $test", sub {
plan tests => 3,
cmp_ok(scalar @got, "==", 1,
"'$test' gives one output arg");
is(ref($got[0]), "",
"'$test' output arg is a scalar");
is($got[0], $out0,
"'$test' output arg has the right value");
};
}
# Scalar context.
for (my $i = 0 ; $i <= $#data ; ++ $i) {
my ($in0, $in1, $out0) = @{ $data[$i] };
my ($x, $got);
my $test = qq|\$x = $LIB->_new("$in0"); |
. qq|\$got = $LIB->_digit(\$x, $in1);|;
diag("\n$test\n\n") if $ENV{AUTHOR_DEBUGGING};
eval $test;
is($@, "", "'$test' gives emtpy \$\@");
subtest "_digit() in scalar context: $test", sub {
plan tests => 2,
is(ref($got), "",
"'$test' output arg is a scalar");
is($got, $out0,
"'$test' output arg has the right value");
};
}
|
