diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/ruby/test_enumerator.rb | 5 |
1 files changed, 5 insertions, 0 deletions
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 |