* enum.c (enum_each_cons): Support for Enumerable#each_cons.size

  [Feature #6636]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37509 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 7 insertions, 0 deletions

diff --git a/test/ruby/test_enumerator.rb b/test/ruby/test_enumerator.rb
index 1e3eb7c8b8..a8564c1ce0 100644
--- a/test/ruby/test_enumerator.rb
+++ b/test/ruby/test_enumerator.rb
@@ -490,5 +490,12 @@ class TestEnumerator < Test::Unit::TestCase
     assert_equal 1, @sized.each_slice(70).size
     assert_raise(ArgumentError){ @obj.each_slice(0).size }
   end
+
+  def test_size_for_each_cons
+    assert_equal nil, @obj.each_cons(3).size
+    assert_equal 33, @sized.each_cons(10).size
+    assert_equal 0, @sized.each_cons(70).size
+    assert_raise(ArgumentError){ @obj.each_cons(0).size }
+  end
 end