X-Git-Url: http://git.shiar.net/perl/list-index.git/blobdiff_plain/fd5749ab518cdf3c68e94fbad168aa2a7725d592..9d8572d98bcc078f2946094bacc6a47dfbbd934b:/t/10-ranges.t

diff --git a/t/10-ranges.t b/t/10-ranges.t
index cf3b0a4..01971c8 100644
--- 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';
 
@@ -10,7 +10,7 @@ BEGIN { use_ok('List::Index'); }
 ok(eval { List::Index->VERSION(1) }, 'version 1.00 compatibility');
 
 subtest 'single-char alphabet' => sub {
-	plan tests => 4;
+	plan tests => 5;
 	my @uniform = 'a'..'z';
 	my $index = List::Index->new(\@uniform) or return;
 	is_deeply(\@uniform, ['a'..'z'], 'original data unaltered');
@@ -19,6 +19,7 @@ subtest 'single-char alphabet' => sub {
 	is_deeply($index->ranges({pagesize => @uniform / 2.1}), [qw(
 		-i j-q r-
 	)], 'equivalent pagesize');
+	is_deeply($index->ranges({ pages => 500 }), ['-a', 'b'..'y', 'z-'], 'max pages');
 };
 
 subtest 'uniform alphanumeric' => sub {
@@ -37,7 +38,7 @@ 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 +110,12 @@ 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 +124,27 @@ 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'
+	);
 }
 };