Rewrite combine in XS

[perl/modules/Sub-Nary.git] / t / 16-combine.t

diff --git a/t/16-combine.t b/t/16-combine.t
new file mode 100644 (file)
index 0000000..03b8386
--- /dev/null
+++ b/t/16-combine.t
@@ -0,0 +1,51 @@
+#!perl -T
+
+use strict;
+use warnings;
+
+use Test::More tests => 24;
+
+use Sub::Nary;
+
+*combine = *Sub::Nary::combine{CODE};
+
+my $h12 = { 1 => 0.5, 2 => 0.5 };
+
+my @tests = (
+ [ [ ],       undef ],
+ [ [ undef ], undef ],
+
+ [ [ 0 ],                0 ],
+ [ [ 1, undef ],         1 ],
+ [ [ undef, 2 ],         2 ],
+ [ [ 0, 1 ],             1 ],
+ [ [ 1, 2 ],             3 ],
+ [ [ 2, undef, 3 ],      5 ],
+
+ [ [ 'list' ],       'list' ],
+ [ [ 0, 'list' ],        'list' ],
+ [ [ 1, 'list' ],        'list' ],
+ [ [ 1, undef, 'list' ], 'list' ],
+ [ [ 1, 'list', 2 ],     'list' ],
+
+ [ [ $h12 ],             $h12 ],
+ [ [ 1, $h12 ],          { 2 => 0.5, 3 => 0.5 } ],
+ [ [ $h12, 2 ],          { 3 => 0.5, 4 => 0.5 } ],
+ [ [ $h12, undef, 3 ],   { 4 => 0.5, 5 => 0.5 } ],
+ [ [ $h12, 'list' ],     'list' ],
+ [ [ $h12, 3, 'list' ],  'list' ],
+ [ [ 1, 0, $h12, 2, 0 ], { 4 => 0.5, 5 => 0.5 } ],
+
+ [ [ $h12, $h12 ],       { 2 => 0.25, 3 => 0.5, 4 => 0.25 } ],
+ [ [ 1, $h12, $h12 ],    { 3 => 0.25, 4 => 0.5, 5 => 0.25 } ],
+ [ [ $h12, 2, $h12 ],    { 4 => 0.25, 5 => 0.5, 6 => 0.25 } ],
+ [ [ $h12, $h12, 3 ],    { 5 => 0.25, 6 => 0.5, 7 => 0.25 } ],
+);
+
+my $i = 1;
+for (@tests) {
+ my $r = combine(@{$_->[0]});
+ my $exp = (not defined $_->[1] or ref $_->[1]) ? $_->[1] : { $_->[1] => 1 };
+ is_deeply($r, $exp, 'combine test ' . $i);
+ ++$i;
+}