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|
#!./perl
BEGIN {
chdir 't' if -d 't';
@INC = '../lib';
}
our $TEST = "TEST";
our $README = "README";
BEGIN {
our @TEST = stat "TEST";
our @README = stat "README";
unless (@TEST && @README) {
print "1..0 # Skip: no file TEST or README\n";
exit 0;
}
}
use Test::More ( tests => 16 );
use File::Compare qw(compare compare_text);
# Upon success, compare() and compare_text() return a Unix-ish 0
# rather than a Perl-ish 1.
is(compare($README,$README), 0, "compare file to itself");
is(compare($TEST,$README), 1, "compare file to different file");
is(compare($README,"HLAGHLAG"), -1,
"compare file to nonexistent file returns error value");
is(compare_text($README,$README), 0, "compare_text file to itself");
is(compare_text($TEST,$README), 1, "compare_text file to different file");
is(compare_text($TEST,"HLAGHLAG"), -1,
"compare_text file to nonexistent file returns error value");
is(compare_text($README,$README,sub {$_[0] ne $_[1]}), 0,
"compare_text with code ref as third argument, file to itself");
is(compare_text($TEST,$README,sub {$_[0] ne $_[1]}), 1,
"compare_text with code ref as third argument, file to different file");
{
open my $fh, '<', $README
or die "Unable to open $README for reading: $!";
binmode($fh);
is(compare($fh,$README), 0,
"compare file with filehandle open to same file");
close $fh;
}
{
open my $fh, '<', $README
or die "Unable to open $README for reading: $!";
binmode($fh);
is(compare($fh,$TEST), 1,
"compare file with filehandle open to different file");
close $fh;
}
# Different file with contents of known file,
# will use File::Temp to do this, skip rest of
# tests if this does not seem to work
my @donetests;
eval {
require File::Temp; import File::Temp qw/ tempfile unlink0 /;
my($tfh,$filename) = tempfile('fcmpXXXX', TMPDIR => 1);
# NB. The trailing space is intentional (see [perl #37716])
my $whsp = get_valid_whitespace();
open my $tfhSP, ">", "$filename$whsp"
or die "Could not open '$filename$whsp' for writing: $!";
binmode($tfhSP);
{
local $/; #slurp
my $fh;
open($fh,'<',$README);
binmode($fh);
my $data = <$fh>;
print $tfh $data;
close($fh);
print $tfhSP $data;
close($tfhSP);
}
seek($tfh,0,0);
$donetests[0] = compare($tfh, $README);
if ($^O eq 'VMS') {
unlink0($tfh,$filename); # queue for later removal
close $tfh; # may not be opened shared
}
$donetests[1] = compare($filename, $README);
unlink0($tfh,$filename);
$donetests[2] = compare($README, "$filename$whsp");
unlink "$filename$whsp";
};
print "# problem '$@' when testing with a temporary file\n" if $@;
SKIP: {
my $why = "Likely due to File::Temp";
my $how_many = 3;
my $have_some_feature = (@donetests == 3);
skip $why, $how_many unless $have_some_feature;
is($donetests[0], 0, "fh/file [$donetests[0]]");
is($donetests[1], 0, "file/file [$donetests[1]]");
TODO: {
my $why = "spaces after filename silently truncated";
my $how_many = 1;
my $condition = ($^O eq "cygwin") or ($^O eq "vos");
todo_skip $why, $how_many if $condition;
is($donetests[2], 0, "file/fileCR [$donetests[2]]");
}
}
{
local $@;
eval { compare(); 1 };
like($@, qr/Usage:\s+compare/,
"detect insufficient arguments to compare()");
}
{
local $@;
eval { compare(undef, $README); 1 };
like($@, qr/from\s+undefined/,
"compare() fails: first argument undefined");
}
{
local $@;
eval { compare($README, undef ); 1 };
like($@, qr/to\s+undefined/,
"compare() fails: second argument undefined");
}
sub get_valid_whitespace {
return ' ' unless $^O eq 'VMS';
return (exists $ENV{'DECC$EFS_CHARSET'} && $ENV{'DECC$EFS_CHARSET'} =~ /^[ET1]/i)
? ' '
: '_'; # traditional mode eats spaces in filenames
}
|
