test modulo

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

diff --git a/t/10-ranges.t b/t/10-ranges.t
index cf3b0a43addfdcd94ccff68764967358e783f7ce..4515aa6fdc7037f89ca5150e7f2620c20df6c8f5 100644 (file)
--- a/t/10-ranges.t
+++ b/t/10-ranges.t
@@ -2,7 +2,7 @@
 use strict;
 use warnings;
 
-use Test::More tests => 8;
+use Test::More tests => 9;
 use Test::NoWarnings;
 use Data::Dump 'pp';
 
@@ -37,7 +37,7 @@ subtest 'context' => sub {
        my $index = List::Index->new([qw(
                kkeg kl km kmlu knsy    koxb kpeo kuaa kuab kuac
                kuapa kuq kur kux kzb   lc lg lgu lgua lguc
-               lguq lgur lgus lgx lka  lkq lks lln llq llx
+               lguq lgur lgws lgx lka  lkq lks lln llq llx
        )]) or return;
        is_deeply(
                $index->ranges({ pagesize=>10, context=>0, length=>5 }),
@@ -109,13 +109,12 @@ subtest 'distribution' => sub {
                hnvtvpievbdlkrmb hs hvdvcqn hvn hyrybeur iaiaab ib ibavqyar idfniqvxpohbk idh
        )]) or return;
        is_deeply(
-               $index->ranges({ pagesize=>10, context=>6 }),
+               $index->ranges({ pagesize=>10, context=>8 }),
                [qw(-g h i-)],
                'large context'
        );
-{ local $TODO = '?';
        is_deeply(
-               $index->ranges({ pagesize=>10, context=>5 }),
+               $index->ranges({ pagesize=>10, context=>7 }),
                # after 2nd page is enlarged by lookbehind to 'h', limit subsequent lookahead
                # to prevent the page from getting too large (17 entries if forwarded to 'i')
                [qw(-g h-hm hn-)],
@@ -124,6 +123,27 @@ subtest 'distribution' => sub {
        # page #14 [gn-g] (8): gnihka gniub go gsearnrqns gtdvcxyt gwawkvmueovdjtfj gwoufolwcvmtueyg gysgphci
        # page #15 [h] (17): h habkdgifjfxoh hbbvjf hbqleexnqts hccgszftbaymfu hdaqzkow hdoeqwdmgqwaoya hfbegicieu hfmlpzzioqjbthz hj hkoysmws hmylu hnvtvpievbdlkrmb hsodfpkatk hvdvcqn hvn hyrybeurqtevjfmi
        # page #16 [i-ie] (5): i iaab ibiavqyar idfniqvxpohbk idh
+};
+
+subtest 'modulo' => sub {
+       plan tests => 2;
+       my $index = List::Index->new([qw(
+               a b ccb   ccd  cce gf gg   gh  i j
+       )]) or return;
+       # 10 entries at 4 per page requires 3 pages
+       # so actual target page sizes should be 3,4,3 (not 4,4,2)
+
+       is_deeply(
+               $index->ranges({ pagesize=>4, context=>0 }),
+               [qw(-ccc ccd-gg gh-)],
+               'uniform page sizes'
+       );
+{ local $TODO = 'early lookbehind causing [c-gg]';
+       is_deeply(
+               $index->ranges({ pagesize=>4, context=>1 }),
+               [qw(-b c-h i-)],
+               'context at new intervals'
+       );
 }
 };