Do not load DBIC::Optional::Dependencies at runtime unless we need to

[dbsrgits/DBIx-Class.git] / t / lib / ANFANG.pm

package # hide from pauses
  ANFANG;

# load-time critical
BEGIN {
  if ( $ENV{RELEASE_TESTING} ) {
    require warnings and warnings->import;
    require strict and strict->import;
  }

  # allow 'use ANFANG' to work after it's been do()ne
  $INC{"ANFANG.pm"} ||= __FILE__;
  $INC{"t/lib/ANFANG.pm"} ||= __FILE__;
  $INC{"./t/lib/ANFANG.pm"} ||= __FILE__;
}

BEGIN {

  # load-me-first sanity check
  if (

    # nobody shut us off
    ! $ENV{DBICTEST_ANFANG_DEFANG}

      and

    # if this is set - all bets are off
    ! $ENV{PERL5OPT}

      and

    # -d:Confess / -d:TraceUse and the like
    ! $^P

      and

    # just don't check anything under RELEASE_TESTING
    # a naive approach would be to simply whitelist both
    # strict and warnings, but pre 5.10 there were even
    # more modules loaded by these two:
    #
    #   perlbrew exec perl -Mstrict -Mwarnings -e 'warn join "\n", sort keys %INC'
    #
    ! $ENV{RELEASE_TESTING}

      and

    my @undesirables = grep {

      ($INC{$_}||'') ne __FILE__

        and

      # allow direct loads via -M
      $_ !~ m{^ DBICTest (?: /Schema )? \.pm $}x

    } keys %INC

  ) {

    my ( $fr, @frame );
    while (@frame = caller(++$fr)) {
      last if $frame[1] !~ m{ (?: \A | [\/\\] ) t [\/\\] lib [\/\\] }x;
    }

    die __FILE__ . " must be loaded before any other module (i.e. @{[ join ', ', map { qq('$_') } sort @undesirables ]}) at $frame[1] line $frame[2]\n";
  }


  if ( $ENV{DBICTEST_VERSION_WARNS_INDISCRIMINATELY} ) {
    my $ov = UNIVERSAL->can("VERSION");

    require Carp;

    # not loading warnings.pm
    local $^W = 0;

    *UNIVERSAL::VERSION = sub {
      Carp::carp( 'Argument "blah bleh bloh" isn\'t numeric in subroutine entry' );
      &$ov;
    };
  }


  if (
    $ENV{DBICTEST_ASSERT_NO_SPURIOUS_EXCEPTION_ACTION}
      or
    # keep it always on during CI
    (
      ($ENV{TRAVIS}||'') eq 'true'
        and
      ($ENV{TRAVIS_REPO_SLUG}||'') =~ m|\w+/dbix-class$|
    )
  ) {
    require Try::Tiny;
    my $orig = \&Try::Tiny::try;

    # not loading warnings.pm
    local $^W = 0;

    *Try::Tiny::try = sub (&;@) {
      my ($fr, $first_pkg) = 0;
      while( $first_pkg = caller($fr++) ) {
        last if $first_pkg !~ /^
          __ANON__
            |
          \Q(eval)\E
        $/x;
      }

      if ($first_pkg =~ /DBIx::Class/) {
        require Test::Builder;
        Test::Builder->new->ok(0,
          'Using try{} within DBIC internals is a mistake - use dbic_internal_try{} instead'
        );
      }

      goto $orig;
    };
  }

}

use lib 't/lib';

# everything expects this to be there
! -d 't/var' and (
  mkdir 't/var'
    or
  die "Unable to create 't/var': $!\n"
);

# Back in ab340f7f ribasushi stupidly introduced a "did you check your deps"
# verification tied very tightly to Module::Install. The check went away, and
# so eventually will M::I, but bisecting can bring all of this back from the
# dead. In order to reduce hair-pulling make sure that ./inc/ is always there
-f 'Makefile.PL' and mkdir 'inc' and mkdir 'inc/.author';

1;