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, 7 insertions, 8 deletions

diff --git a/t/io/pipe.t b/t/io/pipe.t
index fdd8b992bf..bec1a662b9 100644
--- a/t/io/pipe.t
+++ b/t/io/pipe.t
@@ -2,16 +2,15 @@
 
 BEGIN {
     chdir 't' if -d 't';
-    @INC = '../lib';
     require Config; import Config;
     require './test.pl';
-
-    if (!$Config{'d_fork'}) {
-        skip_all("fork required to pipe");
-    }
-    else {
-        plan(tests => 24);
-    }
+    set_up_inc('../lib');
+}
+if (!$Config{'d_fork'}) {
+    skip_all("fork required to pipe");
+}
+else {
+    plan(tests => 24);
 }
 
 my $Perl = which_perl();