From 6882b354604b8a28d7da5b457fd6ce4e1311a5be Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Wed, 20 Jul 2016 08:44:08 +0000
Subject: enumerator.c: Enumerator::Lazy#uniq

* enumerator.c (lazy_uniq): new method Enumerator::Lazy#uniq.
  [Feature #11090]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55710 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/ruby/test_enumerator.rb | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'test/ruby')

diff --git a/test/ruby/test_enumerator.rb b/test/ruby/test_enumerator.rb
index 3cb9dc789f..bd6b7fa669 100644
--- a/test/ruby/test_enumerator.rb
+++ b/test/ruby/test_enumerator.rb
@@ -646,5 +646,10 @@ class TestEnumerator < Test::Unit::TestCase
     e.next
     assert_raise(StopIteration) { e.peek }
   end
+
+  def test_uniq
+    assert_equal([1, 2, 3, 4, 5, 10],
+                 (1..Float::INFINITY).lazy.uniq{|x| (x**2) % 10 }.first(6))
+  end
 end
 
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