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113 lines
2.6 KiB
Perl
113 lines
2.6 KiB
Perl
# This is a replacement for the old BEGIN preamble which heads (or
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# should head) up every core test program to prepare it for running.
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# Now instead of:
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#
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# BEGIN {
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# chdir 't' if -d 't';
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# @INC = '../lib';
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# }
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#
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# Its primary purpose is to clear @INC so core tests don't pick up
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# modules from an installed Perl.
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#
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# t/TEST will use -MTestInit. You may "use TestInit" in the test
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# programs but it is not required.
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#
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# P.S. This documentation is not in POD format in order to avoid
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# problems when there are fundamental bugs in perl.
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package TestInit;
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$VERSION = 1.02;
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# Let tests know they're running in the perl core. Useful for modules
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# which live dual lives on CPAN.
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# Don't interfere with the taintedness of %ENV, this could perturbate tests.
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# This feels like a better solution than the original, from
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# http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2003-07/msg00154.html
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$ENV{PERL_CORE} = $^X;
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sub new_inc {
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if (${^TAINT}) {
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@INC = @_;
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} else {
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@INC = (@_, '.');
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}
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}
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sub set_opt {
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my $sep;
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if ($^O eq 'VMS') {
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$sep = '|';
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} elsif ($^O eq 'MSWin32') {
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$sep = ';';
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} else {
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$sep = ':';
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}
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my $lib = join $sep, @_;
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if (exists $ENV{PERL5LIB}) {
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$ENV{PERL5LIB} = $lib . substr $ENV{PERL5LIB}, 0, 0;
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} else {
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$ENV{PERL5LIB} = $lib;
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}
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}
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my @up_2_t = ('../../lib', '../../t');
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# This is incompatible with the import options.
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if (-f 't/TEST' && -f 'MANIFEST' && -d 'lib' && -d 'ext') {
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# We're being run from the top level. Try to change directory, and set
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# things up correctly. This is a 90% solution, but for hand-running tests,
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# that's good enough
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if ($0 =~ s!(ext[\\/][^\\/]+)[\//](.*\.t)$!$2!) {
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# Looks like a test in ext.
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chdir $1 or die "Can't chdir '$1': $!";
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new_inc(@up_2_t);
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set_opt(@up_2_t);
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$^X =~ s!^\./!../../!;
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$^X =~ s!^\.\\!..\\..\\!;
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} else {
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chdir 't' or die "Can't chdir 't': $!";
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new_inc('../lib');
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}
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} else {
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new_inc('../lib');
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}
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sub import {
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my $self = shift;
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my $abs;
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foreach (@_) {
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if ($_ eq 'U2T') {
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@new_inc = @up_2_t;
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} elsif ($_ eq 'NC') {
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delete $ENV{PERL_CORE}
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} elsif ($_ eq 'A') {
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$abs = 1;
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} else {
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die "Unknown option '$_'";
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}
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}
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if ($abs) {
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if(!@new_inc) {
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@new_inc = '../lib';
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}
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@INC = @new_inc;
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require File::Spec::Functions;
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# Forcibly untaint this.
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@new_inc = map { $_ = File::Spec::Functions::rel2abs($_); /(.*)/; $1 }
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@new_inc;
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$^X = File::Spec::Functions::rel2abs($^X);
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}
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if (@new_inc) {
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new_inc(@new_inc);
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set_opt(@new_inc);
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}
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}
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$0 =~ s/\.dp$//; # for the test.deparse make target
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1;
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