test ranges distribution

[perl/list-index.git] / t / 10-ranges.t

diff --git a/t/10-ranges.t b/t/10-ranges.t
index 1ec5d60da6a76e5fdc7ddffc68bc39bd4aaeafba..55df649fd835118519560f6bd7e69eb7332862ca 100644 (file)
--- a/t/10-ranges.t
+++ b/t/10-ranges.t
@@ -2,7 +2,7 @@
 use strict;
 use warnings;
 
-use Test::More tests => 6;
+use Test::More tests => 7;
 use Test::NoWarnings;
 use Data::Dump 'pp';
 
@@ -29,7 +29,7 @@ subtest 'uniform alphanumeric' => sub {
                .-bp bq-dm dn-fi fj-hf hg-i j-k l-m n-os ot-qp qq-sm sn-uj uk-wf wg-x y-
 
        )], 'default ranges');
-       is_deeply($index->ranges({pagesize => 300}), [qw(-c d-o p-)], 'large pagesize');
+       is_deeply($index->ranges({pagesize => 300}), [qw(-c d-n o-)], 'large pagesize');
 };
 
 subtest 'context' => sub {
@@ -41,15 +41,39 @@ subtest 'context' => sub {
                qw(-baa. baa.-bbb bbc-daa. daaa-eaa. eaaa-)
        ], 'no context');
        is_deeply($index->ranges({pagesize => 2}), [
-               qw(-a b c d-ea. eaa-)
+               qw(-a b c d e-)
        ], 'default context');  # context should be 1
        is_deeply($index->ranges({pagesize => 2, context => 2}), [
                qw(-a b-c d e-)
        ], 'overlap');  # first item equals second due to large context
-       is_deeply($index->ranges({pagesize => 2, length => 1}), [
+       is_deeply($index->ranges({pagesize => 2, context => 0, length => 1}), [
                qw(-a b-c d e-)
        ], 'single char');
 
        #pp($index->ranges({pagesize => 2, context => 2, length => 1}));
 };
 
+subtest 'distribution' => sub {
+       plan tests => 2;
+       my $index = List::Index->new([qw(
+               kkeg kl km kmlu knsy   koxb kpeo kqbt krzu ktyp
+               kuap kuy kvbc kyy kzb  lc lg lgaa lgbv lgbw
+               lgu lij ljr ljs lka    lkq lks lln llq llx
+       )]) or return;
+TODO: {
+       local $TODO = 'under development';
+       is_deeply(
+               $index->ranges({ pagesize=>10, context=>5 }),
+               # after 'kuap' forwards to 'kzb', 'lgu' shouldn't go back to 'lc'
+               # otherwise we get qw[-k l-]
+               [qw(-k l-lg lgu-)],
+               'lookbehind after full lookahead'
+       );
+}
+       is_deeply(
+               $index->ranges({ pagesize=>10, context=>4 }),
+               [qw(-kt ku-lf lg-)],
+               'maximal lookahead'
+       );
+}
+