testcommon: add require_mods method and use it

This cuts down on lines of code in individual test cases and
fixes some misnamed error messages by using "$0" consistently.

This will also provide us with a method of swapping out
dependencies which provide equivalent functionality (e.g
"Xapian" SWIG can replace "Search::Xapian" XS bindings).

1 files changed, 2 insertions, 6 deletions

diff --git a/t/www_listing.t b/t/www_listing.t
index 75698ee5..4fcb43ea 100644
--- a/t/www_listing.t
+++ b/t/www_listing.t
@@ -6,12 +6,8 @@ use warnings;
 use Test::More;
 use PublicInbox::Spawn qw(which);
 use PublicInbox::TestCommon;
-my @mods = qw(URI::Escape Plack::Builder Digest::SHA
-                IO::Compress::Gzip IO::Uncompress::Gunzip HTTP::Tiny);
-foreach my $mod (@mods) {
-        eval("require $mod") or plan skip_all => "$mod missing for $0";
-}
-
+require_mods(qw(URI::Escape Plack::Builder Digest::SHA
+                IO::Compress::Gzip IO::Uncompress::Gunzip HTTP::Tiny));
 require PublicInbox::WwwListing;
 my $json = eval { PublicInbox::WwwListing::_json() };
 plan skip_all => "JSON module missing: $@" if $@;