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# -*- mode: perl; -*-
use strict;
use warnings;
use Test::More tests => 19031;
###############################################################################
# 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/;
# Read the reference type(s) the library uses.
our $REF = $config->{_}->{ref};
die "No reference type defined in file '$config_file'"
unless defined $REF;
die "Invalid reference type '$REF' in file '$config_file'"
unless $REF =~ /^[A-Za-z]\w*(::\w+)*\z/;
# Load the library.
eval "require $LIB";
die $@ if $@;
###############################################################################
can_ok($LIB, '_from_base');
my @data;
my $max = 0x7fffffff; # 2**31-1 (max value for a 32 bit signed int)
# Small numbers and other simple tests.
for (my $x = 0; $x <= 255 ; ++ $x) {
push @data, [ sprintf("%b", $x), 2, $x ];
push @data, [ sprintf("%o", $x), 8, $x ];
push @data, [ sprintf("%d", $x), 10, $x ];
push @data, [ sprintf("%X", $x), 16, $x ];
}
my $collseq = '0123456789' # 48 .. 57
. 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' # 65 .. 90
. 'abcdefghijklmnopqrstuvwxyz' # 97 .. 122
. '!"#$%&\'()*+,-./' # 33 .. 47
. ':;<=>?@' # 58 .. 64
. '[\\]^_`' # 91 .. 96
. '{|}~'; # 123 .. 126
for my $base (2 .. 94) {
# "0" is converted to zero, regardless of base and collation sequence.
push @data, [ "0", $base, "0" ];
push @data, [ "0", $base, $collseq, "0" ];
# Increasing integer powers of the base, with a collation sequence of
# "01..." gives "1", "10", "100", "1000", ...
for (my $pow = 0 ; ; $pow++) {
my $x = $base ** $pow;
last if $x > $max;
push @data, [ '1' . ('0' x $pow), $base, $x ];
push @data, [ '1' . ('0' x $pow), $base, $collseq, $x ];
}
# b^n-1 gives a string containing only one or more of the last character in
# the collation sequence. E.g.,
# b = 2, n = 4, 2^4-1 -> "1111"
# b = 10, n = 5, 10^5-1 -> "99999"
# b = 16, n = 6, 10^6-1 -> "FFFFFF"
for (my $pow = 1 ; ; $pow++) {
my $x = $base ** $pow - 1;
last if $x > $max;
my $chr = substr $collseq, $base - 1, 1;
push @data, [ $chr x $pow, $base, $x ];
push @data, [ $chr x $pow, $base, $collseq, $x ];
}
}
# "123" in base "10" is "123"
# "10203" in base "100" is "123"
# "1002030" in base "1000" is "123"
# ...
for my $exp (1 .. 100) {
my $sep = "0" x ($exp - 1);
my $x = join($sep, "1", "2", "3");
my $base = "1" . ("0" x $exp);
my $str = "123";
push @data, [ $str, $base, $collseq, $x ];
}
{
my $collseq = '-|';
for my $base (2 .. 255) {
for my $pow (0 .. 3) {
my $x = $base ** $pow;
last if $x > $max;
my $str = '|' . ('-' x $pow);
push @data, [ $str, $base, $collseq, $x ];
}
}
}
# Add data in data file.
(my $datafile = $0) =~ s/\.t/.dat/;
open DATAFILE, $datafile or die "$datafile: can't open file for reading: $!";
while (<DATAFILE>) {
s/\s+\z//;
next if /^#/ || ! /\S/;
push @data, [ split /:/ ];
}
close DATAFILE or die "$datafile: can't close file after reading: $!";
# List context.
for (my $i = 0 ; $i <= $#data ; ++ $i) {
my @in = @{ $data[$i] };
my $out0 = pop @in;
my ($x, @got);
# Collation sequence. Make an escaped version for display purposes.
my ($cs, $csesc);
if (@in == 3) {
$cs = $in[2];
($csesc = $cs) =~ s|([\@\$`"\\])|\\$1|g;
}
# We test with the base given as a scalar and as a reference. We also
# accept test data with and without a collation sequence.
for my $base_as_scalar (0, 1) {
# To avoid integer overflow, don't test with a large, scalar base.
next if $base_as_scalar && $in[1] > $max;
my $test;
$test .= $base_as_scalar ? qq| \$b = $in[1];|
: qq| \$b = $LIB->_new("$in[1]");|;
$test .= @in == 3 ? qq| \@got = $LIB->_from_base("$in[0]", \$b, "$in[2]");|
: qq| \@got = $LIB->_from_base("$in[0]", \$b);|;
$b = $base_as_scalar ? $in[1]
: $LIB->_new($in[1]);
@got = @in == 3 ? $LIB->_from_base($in[0], $b, $in[2])
: $LIB->_from_base($in[0], $b);
diag("\n$test\n\n") if $ENV{AUTHOR_DEBUGGING};
subtest "_from_base() in list context: $test", sub {
plan tests => 4,
cmp_ok(scalar @got, '==', 1,
"'$test' gives one output arg");
is(ref($got[0]), $REF,
"'$test' output arg is a $REF");
is($LIB->_check($got[0]), 0,
"'$test' output is valid");
is($LIB->_str($got[0]), $out0,
"'$test' output arg has the right value");
};
}
}
# Scalar context.
for (my $i = 0 ; $i <= $#data ; ++ $i) {
my @in = @{ $data[$i] };
my $out0 = pop @in;
my ($x, $got);
# Collation sequence. Make an escaped version for display purposes.
my ($cs, $csesc);
if (@in == 3) {
$cs = $in[2];
($csesc = $cs) =~ s|([\@\$`"\\])|\\$1|g;
}
# We test with the base given as a scalar and as a reference. We also
# accept test data with and without a collation sequence.
for my $base_as_scalar (0, 1) {
# To avoid integer overflow, don't test with a large, scalar base.
next if $base_as_scalar && $in[1] > $max;
my $test;
$test .= $base_as_scalar ? qq| \$b = $in[1];|
: qq| \$b = $LIB->_new("$in[1]");|;
$test .= @in == 3 ? qq| \$got = $LIB->_from_base("$in[0]", \$b, "$in[2]");|
: qq| \$got = $LIB->_from_base("$in[0]", \$b);|;
$b = $base_as_scalar ? $in[1]
: $LIB->_new($in[1]);
$got = @in == 3 ? $LIB->_from_base($in[0], $b, $in[2])
: $LIB->_from_base($in[0], $b);
diag("\n$test\n\n") if $ENV{AUTHOR_DEBUGGING};
subtest "_from_base() in scalar context: $test", sub {
plan tests => 3,
is(ref($got), $REF,
"'$test' output arg is a $REF");
is($LIB->_check($got), 0,
"'$test' output is valid");
is($LIB->_str($got), $out0,
"'$test' output arg has the right value");
};
}
}
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