From 7c553c96978f1d8c25040bd8f76d7bb63ffb0a2d Mon Sep 17 00:00:00 2001
From: marcandre <marcandre@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 12 Jun 2015 15:45:59 +0000
Subject: * lib/prime.rb: Return sized enumerators.   Patch by Kenichi Kamiya
 [GH-931]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@50857 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/test_prime.rb | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'test/test_prime.rb')

diff --git a/test/test_prime.rb b/test/test_prime.rb
index d4f056466f..48b017e2bc 100644
--- a/test/test_prime.rb
+++ b/test/test_prime.rb
@@ -106,6 +106,13 @@ class TestPrime < Test::Unit::TestCase
     end
   end
 
+  def test_enumerator_size
+    enum = Prime.each
+    assert_equal Float::INFINITY, enum.size
+    assert_equal Float::INFINITY, enum.with_object(nil).size
+    assert_equal Float::INFINITY, enum.with_index(42).size
+  end
+
   def test_default_instance_does_not_have_compatibility_methods
     assert !Prime.instance.respond_to?(:succ)
     assert !Prime.instance.respond_to?(:next)
-- 
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