Use set_up_inc for several unit tests

Use set_up_inc when require.pl is loaded
move plan outside of BEGIN block
when no tests are run at BEGIN time.

Using set_up_inc allow to run these tests under minitest
but also compile them using B::C.

This also has the advantage to use a single
control point for @INC setup.

Note: some tests cannot use 'require test.pl',
unshfit is then used for them.

1 files changed, 3 insertions, 2 deletions

diff --git a/t/op/defins.t b/t/op/defins.t
index 86e0dd8287..fb746d5f93 100644
--- a/t/op/defins.t
+++ b/t/op/defins.t
@@ -6,10 +6,11 @@
 
 BEGIN {
     chdir 't' if -d 't';
-    @INC = qw(. ../lib);
+    require './test.pl';
+    set_up_inc( qw(. ../lib) );
     $SIG{__WARN__} = sub { $warns++; warn $_[0] };
 }
-require './test.pl';
+
 plan( tests => 27 );
 
 my $unix_mode = 1;