+#!/usr/bin/env perl
+use strict;
+use warnings;
+use utf8;
+
+use Test::More tests => 16;
+use Test::NoWarnings;
+use Data::Dump 'pp';
+
+BEGIN { use_ok('List::Index'); }
+ok(eval { List::Index->VERSION(1) }, 'version 1.00 compatibility');
+
+{
+my @uniform = 'a'..'z';
+ok(my $index = List::Index->new(\@uniform), 'object (single-char values)');
+is_deeply(\@uniform, ['a'..'z'], 'original data unaltered');
+is_deeply($index->ranges, [['a','']], 'single page');
+is_deeply($index->ranges({pages => 3}), [map { [split /-/, $_, 2] } qw(
+ a-h i-q r-
+)], 'given pages');
+is_deeply($index->ranges({pagesize => @uniform / 2.1}), [map { [split /-/, $_, 2] } qw(
+ a-h i-q r-
+)], 'equivalent pagesize');
+}
+
+{
+ok(my $index = List::Index->new(['aa'..'zz', 1..145]), 'non-alphabetic values (uniform)');
+is_deeply($index->ranges, [map { [split /-/, $_, 2] } qw(
+ a-bv bw-dr ds-fn fo-hk hl-jg jh-k l-m n-ov ow-qr qs-sn so-uk ul-wg wh-x
+ y-z .-.z ..-.z ..-..z ...-
+)], 'default ranges');
+is_deeply($index->ranges({pagesize => 300}), [map { [split /-/, $_, 2] } qw(
+ a-j k-u v-
+)], 'large pagesize');
+}
+
+{
+ok(my $index = List::Index->new([qw(
+ baaa baa1 baa2 baa3 bbc cbc daaa ea eaaa zed
+)]), 'variable length values');
+is_deeply($index->ranges({pagesize => 2, context => 0}), [
+ map { [split /-/, $_, 2] } qw(baaa-baaz baa.-bbb bbc-daa daaa-eaa eaaa-)
+], 'no context');
+is_deeply($index->ranges({pagesize => 2}), [
+ map { [split /-/, $_, 2] } qw(b-baaz baa.-ba bb-c d-ea eaa-)
+], 'default context'); # context should be 1
+is_deeply($index->ranges({pagesize => 2, context => 2}), [
+ map { [split /-/, $_, 2] } qw(b-a b-ba bb-c d-d e-)
+], 'overlap'); # first item equals second due to large context
+is_deeply($index->ranges({pagesize => 2, length => 1}), [
+ map { [split /-/, $_, 2] } qw(b-a b-a b-c d-d e-)
+], 'single char');
+
+#pp($index->ranges({pagesize => 2, context => 2, length => 1}));
+}
+