| # This is a replacement for the old BEGIN preamble which heads (or |
| # should head) up every core test program to prepare it for running. |
| # Now instead of: |
| # |
| # BEGIN { |
| # chdir 't' if -d 't'; |
| # @INC = '../lib'; |
| # } |
| # |
| # Its primary purpose is to clear @INC so core tests don't pick up |
| # modules from an installed Perl. |
| # |
| # t/TEST will use -MTestInit. You may "use TestInit" in the test |
| # programs but it is not required. |
| # |
| # P.S. This documentation is not in POD format in order to avoid |
| # problems when there are fundamental bugs in perl. |
| |
| package TestInit; |
| |
| $VERSION = 1.04; |
| |
| # Let tests know they're running in the perl core. Useful for modules |
| # which live dual lives on CPAN. |
| # Don't interfere with the taintedness of %ENV, this could perturbate tests. |
| # This feels like a better solution than the original, from |
| # http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2003-07/msg00154.html |
| $ENV{PERL_CORE} = $^X; |
| |
| $0 =~ s/\.dp$//; # for the test.deparse make target |
| |
| sub import { |
| my $self = shift; |
| my @up_2_t = ('../../lib', '../../t'); |
| my ($abs, $chdir, $setopt); |
| foreach (@_) { |
| if ($_ eq 'U2T') { |
| @INC = @up_2_t; |
| $setopt = 1; |
| } elsif ($_ eq 'U1') { |
| @INC = '../lib'; |
| $setopt = 1; |
| } elsif ($_ eq 'NC') { |
| delete $ENV{PERL_CORE} |
| } elsif ($_ eq 'A') { |
| $abs = 1; |
| } elsif ($_ eq 'T') { |
| $chdir = '..' |
| unless -f 't/TEST' && -f 'MANIFEST' && -d 'lib' && -d 'ext'; |
| @INC = 'lib'; |
| $setopt = 1; |
| } else { |
| die "Unknown option '$_'"; |
| } |
| } |
| |
| # Need to default. This behaviour is consistent with previous behaviour, |
| # as the equivalent of this code used to be run at the top level, hence |
| # would happen (unconditionally) before import() was called. |
| unless ($setopt) { |
| if (-f 't/TEST' && -f 'MANIFEST' && -d 'lib' && -d 'ext') { |
| # We're being run from the top level. Try to change directory, and |
| # set things up correctly. This is a 90% solution, but for |
| # hand-running tests, that's good enough |
| if ($0 =~ s!^((?:ext|dist|cpan)[\\/][^\\/]+)[\\/](.*\.t)$!$2!) { |
| # Looks like a test in ext. |
| $chdir = $1; |
| @INC = @up_2_t; |
| $setopt = 1; |
| $^X =~ s!^\.([\\/])!..$1..$1!; |
| } else { |
| $chdir = 't'; |
| @INC = '../lib'; |
| $setopt = $0 =~ m!^lib/!; |
| } |
| } else { |
| # (likely) we're being run by t/TEST or t/harness, and we're a test |
| # in t/ |
| @INC = '../lib'; |
| } |
| } |
| |
| if (defined $chdir) { |
| chdir $chdir or die "Can't chdir '$chdir': $!"; |
| } |
| |
| if ($abs) { |
| require File::Spec::Functions; |
| # Forcibly untaint this. |
| @INC = map { $_ = File::Spec::Functions::rel2abs($_); /(.*)/; $1 } @INC; |
| $^X = File::Spec::Functions::rel2abs($^X); |
| } |
| |
| if ($setopt) { |
| my $sep; |
| if ($^O eq 'VMS') { |
| $sep = '|'; |
| } elsif ($^O eq 'MSWin32') { |
| $sep = ';'; |
| } else { |
| $sep = ':'; |
| } |
| |
| my $lib = join $sep, @INC; |
| if (exists $ENV{PERL5LIB}) { |
| $ENV{PERL5LIB} = $lib . substr $ENV{PERL5LIB}, 0, 0; |
| } else { |
| $ENV{PERL5LIB} = $lib; |
| } |
| } |
| |
| push @INC, '.' unless ${^TAINT}; |
| } |
| |
| 1; |