+++: penalty

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

diff --git a/t/10-ranges.t b/t/10-ranges.t
index 55df649fd835118519560f6bd7e69eb7332862ca..d96ebb528ef1358cf82646d9c238eba1fb149e19 100644 (file)
--- a/t/10-ranges.t
+++ b/t/10-ranges.t
@@ -54,26 +54,31 @@ subtest 'context' => sub {
 };
 
 subtest 'distribution' => sub {
-       plan tests => 2;
+       plan tests => 3;
        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
+               kkeg kl km kmlu knsy    koxb kpeo kuaa kuab kuac
+               kuap kuaq kuq kux kzb   lc lg lgu lgua lguc
+               lguq lgur lgus lgx 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'
+               $index->ranges({ pagesize=>10, context=>3 }),
+               # shorten 'kuap' to 'ku' because lookbehind is 'kp...'
+               # 'lguq' matches 'lg', but may only backtrack to 'lgu'
+               [qw(-kt ku-lgt lgu-)],
+               'lookbehind'
        );
-}
        is_deeply(
                $index->ranges({ pagesize=>10, context=>4 }),
                [qw(-kt ku-lf lg-)],
                'maximal lookahead'
        );
+       is_deeply(
+               $index->ranges({ pagesize=>10, context=>5 }),
+               # after forwarding 'kuap' to 'lc'
+               # disallow backtracking of 'lguq' to 'lc' to prevent qw[-k l-]
+               # so only lookahead (to 'lkq') remains
+               [qw(-k l-lj lk-)],
+               'lookbehind after full lookahead'
+       );
 }