1 files changed, 69 insertions, 0 deletions
diff --git a/t/tags.t b/t/tags.t
new file mode 100644
index 0000000..90f20ca
--- /dev/null
+++ b/t/tags.t
@@ -0,0 +1,69 @@
+use strict;
+use warnings;
+
+use Test::More;
+use List::Util 'first';
+use Carp;
+use lib 't/lib';
+use A::Junk ':other';
+
+BEGIN {
+   unshift @INC, sub { croak 'Shouldn\'t load Sub::Exporter' if $_[1] eq 'Sub/Exporter.pm' };
+}
+
+ok(!main->can('junk1'), 'junk1 not exported');
+ok(!main->can('junk2'), 'junk2 not exported');
+ok(main->can('junk3'), 'junk3 exported');
+ok(! $INC{'Sub/Exporter.pm'}, 'Sub::Exporter not loaded');
+
+BEGIN {
+   package Local::Exporter;
+   use Sub::Exporter::Progressive -setup => {
+      exports => [qw/ foo bar baz /],
+      groups  => {
+         default => [qw/ foo /],
+         bb      => [qw/ bar baz /],
+      },
+   };
+   use constant foo => 1;
+   use constant bar => 2;
+   use constant baz => 3;
+
+   $INC{'Local/Exporter.pm'} = __FILE__;
+};
+
+my $i = 0;
+sub check_tag {
+   my ($tag, $should, $shouldnt) = @_;
+   my $pkg = 'Local::Importer' . ++$i;
+
+   ok(eval qq{
+      package $pkg;
+      use Local::Exporter qw( $tag );
+      1;
+   }, "'$tag' tag: $pkg compiled") or diag $@;
+
+   ok( $pkg->can($_), "'$tag' tag: $pkg\->can(\"$_\")") for @$should;
+   ok(!$pkg->can($_), "'$tag' tag: $pkg\->can't(\"$_\")") for @$shouldnt;
+}
+
+check_tag(':default', [qw/foo/], [qw/bar baz/]);
+check_tag('-default', [qw/foo/], [qw/bar baz/]);
+check_tag(':default bar', [qw/foo bar/], [qw/baz/]);
+check_tag('-default bar', [qw/foo bar/], [qw/baz/]);
+check_tag(':bb', [qw/bar baz/], [qw/foo/]);
+check_tag('-bb', [qw/bar baz/], [qw/foo/]);
+check_tag(':all', [qw/foo bar baz/], []);
+check_tag('-all', [qw/foo bar baz/], []);
+
+SKIP: {
+  skip "Your version of Exporter (@{[ Exporter->VERSION ]}) supports "
+      .'tags only as the first argument to import()', 1
+    unless eval { Exporter->VERSION('5.58') };
+
+  check_tag('bar :default', [qw/foo bar/], [qw/baz/]);
+  check_tag('bar -default', [qw/foo bar/], [qw/baz/]);
+}
+
+done_testing;
+