From 6bbf668d6e797a402a3e6819f4efda5315db1a11 Mon Sep 17 00:00:00 2001 From: marcandre Date: Tue, 6 Nov 2012 17:11:21 +0000 Subject: * array.c (rb_ary_combination): Support for Array#combination.size [Feature #6636] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37502 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- test/ruby/test_enumerator.rb | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'test/ruby/test_enumerator.rb') diff --git a/test/ruby/test_enumerator.rb b/test/ruby/test_enumerator.rb index a4222f2ac0..90718b29cb 100644 --- a/test/ruby/test_enumerator.rb +++ b/test/ruby/test_enumerator.rb @@ -441,6 +441,11 @@ class TestEnumerator < Test::Unit::TestCase assert_equal 24, [0, 1, 2, 4].permutation.size assert_equal 2933197128679486453788761052665610240000000, (1..42).to_a.permutation(30).size # 1.upto(42).inject(:*) / 1.upto(12).inject(:*) + + check_consistency_for_combinatorics(:combination) + assert_equal 28258808871162574166368460400, + (1..100).to_a.combination(42).size + # 1.upto(100).inject(:*) / 1.upto(42).inject(:*) / 1.upto(58).inject(:*) end end -- cgit v1.2.3