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package Test::Utils;
use strict;
use Exporter;
use Test::More;
use Text::Diff;
use FileHandle::Unget;
use File::Path;
use File::Spec::Functions qw(:ALL);
use vars qw( @EXPORT @ISA );
use Mail::Mbox::MessageParser;
use Mail::Mbox::MessageParser::MetaInfo;
@ISA = qw( Exporter );
@EXPORT = qw( CheckDiffs InitializeCache ModuleInstalled
Broken_Pipe No_such_file_or_directory
);
# ---------------------------------------------------------------------------
sub CheckDiffs
{
my @pairs = @_;
local $Test::Builder::Level = 2;
foreach my $pair (@pairs)
{
my $filename = $pair->[0];
my $output_filename = $pair->[1];
print "Comparing $output_filename to $filename\n";
my @diffs;
diff $output_filename, $filename, { STYLE => 'OldStyle', OUTPUT => \@diffs };
my $numdiffs = grep { /^[\d,]+[acd][\d,]+$/ } @diffs;
if ($numdiffs != 0)
{
open DIFF_OUTPUT, ">$output_filename.diff";
print DIFF_OUTPUT "diff \"$output_filename\" \"$filename\"\n";
print DIFF_OUTPUT @diffs;
close DIFF_OUTPUT;
print "Failed, with $numdiffs differences.\n";
print " See $output_filename.diff.\n";
ok(0,"Computing differences between $filename and $output_filename");
return;
}
else
{
print "Output $output_filename looks good.\n";
unlink $output_filename;
}
}
ok(1,"Computing differences");
}
# ---------------------------------------------------------------------------
sub InitializeCache
{
my $filename = shift;
my $cache_file = catfile('t','temp','cache');
rmtree $cache_file;
Mail::Mbox::MessageParser::SETUP_CACHE({'file_name' => $cache_file});
my $filehandle = new FileHandle::Unget($filename);
my $folder_reader =
new Mail::Mbox::MessageParser( {
'file_name' => $filename,
'file_handle' => $filehandle,
'enable_cache' => 1,
'enable_grep' => 0,
} );
die $folder_reader unless ref $folder_reader;
my $prologue = $folder_reader->prologue;
# This is the main loop. It's executed once for each email
while(!$folder_reader->end_of_file())
{
$folder_reader->read_next_email();
}
$filehandle->close();
Mail::Mbox::MessageParser::MetaInfo::WRITE_CACHE();
# Check that the cache is actually there
die "Couldn't initialize cache" unless -e $cache_file;
}
# ---------------------------------------------------------------------------
sub ModuleInstalled
{
my $module_name = shift;
$module_name =~ s#::#/#g;
$module_name .= '.pm';
foreach my $inc (@INC)
{
return 1 if -e catfile($inc,$module_name);
}
return 0;
}
# ---------------------------------------------------------------------------
sub No_such_file_or_directory
{
my $filename = 0;
$filename++ while -e $filename;
local $!;
my $foo = new FileHandle;
$foo->open($filename);
die q{Couldn't determine local text for "No such file or directory"}
if $! eq '';
return $!;
}
# ---------------------------------------------------------------------------
# I think this works, but I haven't been able to test it because I can't find
# a system which will report a broken pipe. Also, is there a pure Perl way of
# doing this?
sub Broken_Pipe
{
mkdir catdir('t','temp'), 0700;
my $script_path = catfile('t','temp','broken_pipe.pl');
my $dev_null = devnull();
open F, ">$script_path";
print F<<EOF;
unless (open B, '-|')
{
open(F, "|$^X -pe 'print' 2>$dev_null");
print F 'x';
close F;
exit;
}
EOF
close F;
my $result = `$^X $script_path 2>&1 1>$dev_null`;
$result = '' unless defined $result;
return $result;
}
# ---------------------------------------------------------------------------
1;
|
