#!./perl -w

# AutoLoader.t runs before this test, so it seems safe to assume that it will
# work.

my($incdir, $lib);
BEGIN {
    chdir 't' if -d 't';
    if ($^O eq 'dos') {
	print "1..0 # This test is not 8.3-aware.\n";
	    exit 0;
    }
    if ($^O eq 'MacOS') {
	$incdir = ":auto-$$";
        $lib = '-I::lib:';
    } else {
	$incdir = "auto-$$";
	$lib = '"-I../lib"'; # ok on unix, nt, The extra \" are for VMS
    }
    @INC = $incdir;
    push @INC, '../lib';
}
my $runperl = "$^X $lib";

use warnings;
use strict;
use Test::More tests => 58;
use File::Spec;
use File::Find;

require AutoSplit; # Run time. Check it compiles.
ok (1, "AutoSplit loaded");

END {
    use File::Path;
    print "# $incdir being removed...\n";
    rmtree($incdir);
}

mkdir $incdir,0755;

my @tests;
{
  # local this else it buggers up the chomp() below.
  # Hmm. Would be nice to have this as a regexp.
  local $/
    = "################################################################\n";
  @tests = <DATA>;
  close DATA;
}

my $pathsep = $^O eq 'MSWin32' ? '\\' : $^O eq 'MacOS' ? ':' : '/';
my $endpathsep = $^O eq 'MacOS' ? ':' : '';

sub split_a_file {
  my $contents = shift;
  my $file = $_[0];
  if (defined $contents) {
    open FILE, ">$file" or die "Can't open $file: $!";
    print FILE $contents;
    close FILE or die "Can't close $file: $!";
  }

  # Assumption: no characters in arguments need escaping from the shell or perl
  my $com = qq($runperl -e "use AutoSplit; autosplit (qw(@_))");
  print "# command: $com\n";
  # There may be a way to capture STDOUT without spawning a child process, but
  # it's probably worthwhile spawning, as it ensures that nothing in AutoSplit
  # can load functions from split modules into this perl.
  my $output = `$com`;
  warn "Exit status $? from running: >>$com<<" if $?;
  return $output;
}

my $i = 0;
my $dir = File::Spec->catdir($incdir, 'auto');
if ($^O eq 'VMS') {
  $dir = VMS::Filespec::unixify($dir);
  $dir =~ s/\/$//;
} elsif ($^O eq 'MacOS') {
  $dir =~ s/:$//;
}

foreach (@tests) {
  my $module = 'A' . $i . '_' . $$ . 'splittest';
  my $file = File::Spec->catfile($incdir,"$module.pm");
  s/\*INC\*/$incdir/gm;
  s/\*DIR\*/$dir/gm;
  s/\*MOD\*/$module/gm;
  s/\*PATHSEP\*/$pathsep/gm;
  s/\*ENDPATHSEP\*/$endpathsep/gm;
  s#//#/#gm;
  # Build a hash for this test.
  my %args = /^\#\#\ ([^\n]*)\n	# Key is on a line starting ##
             ((?:[^\#]+		# Any number of characters not #
               | \#(?!\#)	# or a # character not followed by #
               | (?<!\n)\#	# or a # character not preceded by \n
              )*)/sgmx;
  foreach ($args{Name}, $args{Require}, $args{Extra}) {
    chomp $_ if defined $_;
  }
  my @extra_args = !defined $args{Extra} ? () : split /,/, $args{Extra};
  my ($output, $body);
  if ($args{File}) {
    $body ="package $module;\n" . $args{File};
    $output = split_a_file ($body, $file, $dir, @extra_args);
  } else {
    # Repeat tests
    $output = split_a_file (undef, $file, $dir, @extra_args);
  }

  if ($^O eq 'VMS') {
     my ($filespec, $replacement);
     while ($output =~ m/(\[.+\])/) {
       $filespec = $1;
       $replacement =  VMS::Filespec::unixify($filespec);
       $replacement =~ s/\/$//;
       $output =~ s/\Q$filespec\E/$replacement/;
     }
  }

  # test n+1
  cmp_ok ($output, 'eq', $args{Get}, "Output from autosplit()ing $args{Name}");

  if ($args{Files}) {
    $args{Files} =~ s!/!:!gs if $^O eq 'MacOS';
    my (%missing, %got);
    find (sub {$got{$File::Find::name}++ unless -d $_}, $dir);
    foreach (split /\n/, $args{Files}) {
      next if /^#/;
      $_ = lc($_) if $^O eq 'VMS';
      unless (delete $got{$_}) {
        $missing{$_}++;
      }
    }
    my @missing = keys %missing;
    # test n+2
    unless (ok (!@missing, "Are any expected files missing?")) {
      print "# These files are missing\n";
      print "# $_\n" foreach sort @missing;
    }
    my @extra = keys %got;
    # test n+3
    unless (ok (!@extra, "Are any extra files present?")) {
      print "# These files are unexpectedly present:\n";
      print "# $_\n" foreach sort @extra;
    }
  }
  if ($args{Require}) {
    $args{Require} =~ s|/|:|gm if $^O eq 'MacOS';
    my $com = 'require "' . File::Spec->catfile ('auto', $args{Require}) . '"';
    $com =~ s{\\}{/}gm if ($^O eq 'MSWin32');
    eval $com;
    # test n+3
    ok ($@ eq '', $com) or print "# \$\@ = '$@'\n";
    if (defined $body) {
      eval $body or die $@;
    }
  }
  # match tests to check for prototypes
  if ($args{Match}) {
    local $/;
    my $file = File::Spec->catfile($dir, $args{Require});
    open IX, $file or die "Can't open '$file': $!";
    my $ix = <IX>;
    close IX or die "Can't close '$file': $!";
    foreach my $pat (split /\n/, $args{Match}) {
      next if $pat =~ /^\#/;
      like ($ix, qr/^\s*$pat\s*$/m, "match $pat");
    }
  }
  # code tests contain eval{}ed ok()s etc
  if ($args{Tests}) {
    foreach my $code (split /\n/, $args{Tests}) {
      next if $code =~ /^\#/;
      defined eval $code or fail(), print "# Code:  $code\n# Error: $@";
    }
  }
  if (my $sleepfor = $args{Sleep}) {
    # We need to sleep for a while
    # Need the sleep hack else the next test is so fast that the timestamp
    # compare routine in AutoSplit thinks that it shouldn't split the files.
    my $time = time;
    my $until = $time + $sleepfor;
    my $attempts = 3;
    do {
      sleep ($sleepfor)
    } while (time < $until && --$attempts > 0);
    if ($attempts == 0) {
      printf << "EOM", time;
# Attempted to sleep for $sleepfor second(s), started at $time, now %d.
# sleep attempt ppears to have failed; some tests may fail as a result.
EOM
    }
  }
  unless ($args{SameAgain}) {
    $i++;
    rmtree($dir);
    mkdir $dir, 0775;
  }
}

__DATA__
## Name
tests from the end of the AutoSplit module.
## File
use AutoLoader 'AUTOLOAD';
{package Just::Another;
 use AutoLoader 'AUTOLOAD';
}
@Yet::Another::AutoSplit::ISA = 'AutoLoader';
1;
__END__
sub test1 ($)   { "test 1"; }
sub test2 ($$)  { "test 2"; }
sub test3 ($$$) { "test 3"; }
sub testtesttesttest4_1  { "test 4"; }
sub testtesttesttest4_2  { "duplicate test 4"; }
sub Just::Another::test5 { "another test 5"; }
sub test6       { return join ":", __FILE__,__LINE__; }
package Yet::Another::AutoSplit;
sub testtesttesttest4_1 ($)  { "another test 4"; }
sub testtesttesttest4_2 ($$) { "another duplicate test 4"; }
package Yet::More::Attributes;
sub test_a1 ($) : locked :locked { 1; }
sub test_a2 : locked { 1; }
# And that was all it has. You were expected to manually inspect the output
## Get
Warning: AutoSplit had to create top-level *DIR* unexpectedly.
AutoSplitting *INC**PATHSEP**MOD*.pm (*DIR**PATHSEP**MOD**ENDPATHSEP*)
*INC**PATHSEP**MOD*.pm: some names are not unique when truncated to 8 characters:
 directory *DIR**PATHSEP**MOD**ENDPATHSEP*:
  testtesttesttest4_1.al, testtesttesttest4_2.al truncate to testtest
 directory *DIR**PATHSEP*Yet*PATHSEP*Another*PATHSEP*AutoSplit*ENDPATHSEP*:
  testtesttesttest4_1.al, testtesttesttest4_2.al truncate to testtest
## Files
*DIR*/*MOD*/autosplit.ix
*DIR*/*MOD*/test1.al
*DIR*/*MOD*/test2.al
*DIR*/*MOD*/test3.al
*DIR*/*MOD*/testtesttesttest4_1.al
*DIR*/*MOD*/testtesttesttest4_2.al
*DIR*/Just/Another/test5.al
*DIR*/*MOD*/test6.al
*DIR*/Yet/Another/AutoSplit/testtesttesttest4_1.al
*DIR*/Yet/Another/AutoSplit/testtesttesttest4_2.al
*DIR*/Yet/More/Attributes/test_a1.al
*DIR*/Yet/More/Attributes/test_a2.al
## Require
*MOD*/autosplit.ix
## Match
# Need to find these lines somewhere in the required file
sub test1\s*\(\$\);
sub test2\s*\(\$\$\);
sub test3\s*\(\$\$\$\);
sub testtesttesttest4_1\s*\(\$\);
sub testtesttesttest4_2\s*\(\$\$\);
sub test_a1\s*\(\$\)\s*:\s*locked\s*:\s*locked\s*;
sub test_a2\s*:\s*locked\s*;
## Tests
is (*MOD*::test1 (1), 'test 1');
is (*MOD*::test2 (1,2), 'test 2');
is (*MOD*::test3 (1,2,3), 'test 3');
ok (!defined eval "*MOD*::test1 () eq 'test 1'" and $@ =~ /^Not enough arguments for *MOD*::test1/, "Check prototypes mismatch fails") or print "# \$\@='$@'";
is (&*MOD*::testtesttesttest4_1, "test 4");
is (&*MOD*::testtesttesttest4_2, "duplicate test 4");
is (&Just::Another::test5, "another test 5");
# very messy way to interpolate function into regexp, but it's going to be
# needed to get : for Mac filespecs
like (&*MOD*::test6, qr!^\Q*INC**PATHSEP**MOD*\E\.pm \(autosplit into \Q@{[File::Spec->catfile('*DIR*','*MOD*', 'test6.al')]}\E\):\d+$!);
ok (Yet::Another::AutoSplit->testtesttesttest4_1 eq "another test 4");
################################################################
## Name
missing use AutoLoader;
## File
1;
__END__
## Get
## Files
# There should be no files.
################################################################
## Name
missing use AutoLoader; (but don't skip)
## Extra
0, 0
## File
1;
__END__
## Get
AutoSplitting *INC**PATHSEP**MOD*.pm (*DIR**PATHSEP**MOD**ENDPATHSEP*)
## Require
*MOD*/autosplit.ix
## Files
*DIR*/*MOD*/autosplit.ix
################################################################
## Name
Split prior to checking whether obsolete files get deleted
## File
use AutoLoader 'AUTOLOAD';
1;
__END__
sub obsolete {my $a if 0; return $a++;}
sub gonner {warn "This gonner function should never get called"}
## Get
AutoSplitting *INC**PATHSEP**MOD*.pm (*DIR**PATHSEP**MOD**ENDPATHSEP*)
## Require
*MOD*/autosplit.ix
## Files
*DIR*/*MOD*/autosplit.ix
*DIR*/*MOD*/gonner.al
*DIR*/*MOD*/obsolete.al
## Tests
is (&*MOD*::obsolete, 0);
is (&*MOD*::obsolete, 1);
## Sleep
4
## SameAgain
True, so don't scrub this directory.
IIRC DOS FAT filesystems have only 2 second granularity.
################################################################
## Name
Check whether obsolete files get deleted
## File
use AutoLoader 'AUTOLOAD';
1;
__END__
sub skeleton {"bones"};
sub ghost {"scream"}; # This definition gets overwritten with the one below
sub ghoul {"wail"};
sub zombie {"You didn't use fire."};
sub flying_pig {"Oink oink flap flap"};
## Get
AutoSplitting *INC**PATHSEP**MOD*.pm (*DIR**PATHSEP**MOD**ENDPATHSEP*)
## Require
*MOD*/autosplit.ix
## Files
*DIR*/*MOD*/autosplit.ix
*DIR*/*MOD*/skeleton.al
*DIR*/*MOD*/zombie.al
*DIR*/*MOD*/ghost.al
*DIR*/*MOD*/ghoul.al
*DIR*/*MOD*/flying_pig.al
## Tests
is (&*MOD*::skeleton, "bones", "skeleton");
eval {&*MOD*::gonner}; ok ($@ =~ m!^Can't locate auto/*MOD*/gonner.al in \@INC!, "Check &*MOD*::gonner is now a gonner") or print "# \$\@='$@'\n";
## Sleep
4
## SameAgain
True, so don't scrub this directory.
################################################################
## Name
Check whether obsolete files remain when keep is 1
## Extra
1, 1
## File
use AutoLoader 'AUTOLOAD';
1;
__END__
sub ghost {"bump"};
sub wraith {9};
## Get
AutoSplitting *INC**PATHSEP**MOD*.pm (*DIR**PATHSEP**MOD**ENDPATHSEP*)
## Require
*MOD*/autosplit.ix
## Files
*DIR*/*MOD*/autosplit.ix
*DIR*/*MOD*/skeleton.al
*DIR*/*MOD*/zombie.al
*DIR*/*MOD*/ghost.al
*DIR*/*MOD*/ghoul.al
*DIR*/*MOD*/wraith.al
*DIR*/*MOD*/flying_pig.al
## Tests
is (&*MOD*::ghost, "bump");
is (&*MOD*::zombie, "You didn't use fire.", "Are our zombies undead?");
## Sleep
4
## SameAgain
True, so don't scrub this directory.
################################################################
## Name
Without the timestamp check make sure that nothing happens
## Extra
0, 1, 1
## Require
*MOD*/autosplit.ix
## Files
*DIR*/*MOD*/autosplit.ix
*DIR*/*MOD*/skeleton.al
*DIR*/*MOD*/zombie.al
*DIR*/*MOD*/ghost.al
*DIR*/*MOD*/ghoul.al
*DIR*/*MOD*/wraith.al
*DIR*/*MOD*/flying_pig.al
## Tests
is (&*MOD*::ghoul, "wail", "still haunted");
is (&*MOD*::zombie, "You didn't use fire.", "Are our zombies still undead?");
## Sleep
4
## SameAgain
True, so don't scrub this directory.
################################################################
## Name
With the timestamp check make sure that things happen (stuff gets deleted)
## Extra
0, 1, 0
## Get
AutoSplitting *INC**PATHSEP**MOD*.pm (*DIR**PATHSEP**MOD**ENDPATHSEP*)
## Require
*MOD*/autosplit.ix
## Files
*DIR*/*MOD*/autosplit.ix
*DIR*/*MOD*/ghost.al
*DIR*/*MOD*/wraith.al
## Tests
is (&*MOD*::wraith, 9);
eval {&*MOD*::flying_pig}; ok ($@ =~ m!^Can't locate auto/*MOD*/flying_pig.al in \@INC!, "There are no flying pigs") or print "# \$\@='$@'\n";