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douboer
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perl/lib/Graph-Easy-0.76/t/gv.t
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perl/lib/Graph-Easy-0.76/t/gv.t
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#!/usr/bin/perl -w
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use Test::More;
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use strict;
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use File::Spec;
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sub _write_utf8_file
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{
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my ($out_path, $contents) = @_;
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open my $out_fh, '>:encoding(utf8)', $out_path
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or die "Cannot open '$out_path' for writing - $!";
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print {$out_fh} $contents;
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close($out_fh);
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return;
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}
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# test graphviz (dot) file input => ASCII output
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# and back to as_txt() again
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BEGIN
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{
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plan tests => 140;
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chdir 't' if -d 't';
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use lib '../lib';
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use_ok ("Graph::Easy") or die($@);
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use_ok ("Graph::Easy::Parser") or die($@);
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use_ok ("Graph::Easy::Parser::Graphviz") or die($@);
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};
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my @warnings;
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#############################################################################
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# override the warn method to catch warnigs
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{
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no warnings 'redefine';
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package Graph::Easy::Base;
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sub warn {
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my ($self,$msg) = @_;
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push @warnings, $msg;
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}
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}
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#############################################################################
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# parser object
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my $def_parser = Graph::Easy::Parser->new(debug => 0);
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is (ref($def_parser), 'Graph::Easy::Parser');
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is ($def_parser->error(), '', 'no error yet');
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my $dot_parser = Graph::Easy::Parser::Graphviz->new(debug => 0);
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is (ref($dot_parser), 'Graph::Easy::Parser::Graphviz');
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is ($dot_parser->error(), '', 'no error yet');
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my $dir = File::Spec->catdir('in','dot');
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opendir DIR, $dir or die ("Cannot read dir '$dir': $!");
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my @files = readdir(DIR); closedir(DIR);
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opendir DIR, 'dot' or die ("Cannot read dir 'dot': $!");
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push @files, readdir(DIR); closedir(DIR);
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binmode (STDERR, ':utf8') or die ("Cannot do binmode(':utf8') on STDERR: $!");
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binmode (STDOUT, ':utf8') or die ("Cannot do binmode(':utf8') on STDOUT: $!");
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eval { require Test::Differences; };
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foreach my $f (sort {
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$a =~ /^(\d+)/; my $a1 = $1 || '1';
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$b =~ /^(\d+)/; my $b1 = $1 || '1';
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$a1 <=> $b1 || $a cmp $b;
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} @files)
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{
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my $file = File::Spec->catfile($dir,$f);
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my $parser = $def_parser;
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if (!-f $file)
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{
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$file = File::Spec->catfile('dot',$f);
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next unless -f $file; # only files
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# for files in t/dot, we need to use the Graphviz parser as they
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# look like Graph::Easy text to the normal parser, which then fails
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$parser = $dot_parser;
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}
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next unless $f =~ /\.dot/; # ignore anything else
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print "# at $f\n";
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my $txt = readfile($file);
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$parser->reset();
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my $graph = $parser->from_text($txt); # reuse parser object
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$f =~ /^(\d+)/;
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my $nodes = $1;
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if (!defined $graph)
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{
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fail ("Graphviz input was invalid: " . $parser->error());
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next;
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}
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is (scalar $graph->nodes(), $nodes, "$nodes nodes");
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# for slow testing machines
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$graph->timeout(20);
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my $ascii = $graph->as_ascii();
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my $of = $f; $of =~ s/\.dot/\.txt/;
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my $out_path = File::Spec->catfile('out','dot',$of);
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my $out = readfile($out_path);
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$out =~ s/(^|\n)#[^# ]{2}.*\n//g; # remove comments
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$out =~ s/\n\n\z/\n/mg; # remove empty lines
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# print "txt: $txt\n";
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# print "ascii: $ascii\n";
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# print "should: $out\n";
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if (!
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is ($ascii, $out, "from $f"))
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{
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if ($ENV{__SHLOMIF__UPDATE_ME})
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{
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_write_utf8_file($out_path, $ascii);
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}
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if (defined $Test::Differences::VERSION)
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{
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Test::Differences::eq_or_diff ($ascii, $out);
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}
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else
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{
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fail ("Test::Differences not installed");
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}
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}
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# if the txt output differes, read it in
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my $f_txt = File::Spec->catfile('txt','dot',$of);
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if (-f $f_txt)
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{
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$txt = readfile($f_txt);
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}
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$graph->debug(1);
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if (!
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is ($graph->as_txt(), $txt, "$f as_txt"))
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{
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if ($ENV{__SHLOMIF__UPDATE_ME})
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{
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_write_utf8_file($f_txt, scalar( $graph->as_txt() ));
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}
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if (defined $Test::Differences::VERSION)
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{
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Test::Differences::eq_or_diff ($graph->as_txt(), $txt);
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}
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else
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{
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fail ("Test::Differences not installed");
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}
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}
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# print a debug output
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my $debug = $ascii;
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$debug =~ s/\n/\n# /g;
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print "# Generated:\n#\n# $debug\n";
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}
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# check that only the expected warnings were generated
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use Data::Dumper;
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print STDERR Dumper(\@warnings) unless
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is (scalar @warnings, 6, 'Got exactly 6 warnings');
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my $i = 0;
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for my $name (qw/bar foo pname fname bar brabble/)
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{
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like ($warnings[$i], qr/Ignoring unknown attribute '$name' for class/,
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"Got warning about $name");
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$i++;
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}
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1;
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sub readfile
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{
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my ($file) = @_;
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open my $FILE, $file or die ("Cannot read file $file: $!");
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binmode ($FILE, ':utf8') or die ("Cannot do binmode(':utf8') on $FILE: $!");
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local $/ = undef; # slurp mode
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my $doc = <$FILE>;
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close $FILE;
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$doc;
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}
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