Add tests for adding/removing stuff to the stack

diff --git a/t/stackable.t b/t/stackable.t
new file mode 100644 (file)
index 0000000..ea58365
--- /dev/null
+++ b/t/stackable.t
@@ -0,0 +1,29 @@
+use strict;
+use warnings;
+use Test::More;
+use File::Temp qw(tempdir);
+use Cwd;
+
+plan tests => 11;
+
+my $dir1 = tempdir('test_local_lib-XXXXX', DIR => Cwd::abs_path('t'), CLEANUP => 1);
+my $dir2 = tempdir('test_local_lib-XXXXX', DIR => Cwd::abs_path('t'), CLEANUP => 1);
+
+use local::lib ();
+
+local::lib->import($dir1);
+like $ENV{PERL_LOCAL_LIB_ROOT}, qr/\Q$dir1/, 'added one dir in root';
+like $ENV{PERL5LIB}, qr/\Q$dir1/, 'added one dir in lib';
+
+local::lib->import($dir2);
+like $ENV{PERL_LOCAL_LIB_ROOT}, qr/\Q$dir2/, 'added another dir in root';
+like $ENV{PERL5LIB}, qr/\Q$dir2/, 'added another dir in lib';
+like $ENV{PERL_LOCAL_LIB_ROOT}, qr/\Q$dir1/, 'first dir is still in root';
+like $ENV{PERL5LIB}, qr/\Q$dir1/, 'first dir is still in lib';
+
+local::lib->import('--deactivate', $dir1);
+unlike $ENV{PERL_LOCAL_LIB_ROOT}, qr/\Q$dir1/, 'first dir was removed from root';
+unlike $ENV{PERL5LIB}, qr/\Q$dir1/, 'first dir was removed from lib';
+like $ENV{PERL_LOCAL_LIB_ROOT}, qr/\Q$dir2/, q{second dir didn't go away from root};
+like $ENV{PERL5LIB}, qr/\Q$dir2/, q{second dir didn't go away from lib};
+like $ENV{PERL_MM_OPT}, qr/\Q$dir2/, q{second dir stays installation target};