From d893c123f6b021254b21c920e182d3c64967f5d5 Mon Sep 17 00:00:00 2001
From: knu <knu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Fri, 14 Jul 2017 08:46:13 +0000
Subject: Alias Set#to_s to #inspect [ruby-core:81753] [Feature #13676]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59332 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 test/test_set.rb | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'test/test_set.rb')

diff --git a/test/test_set.rb b/test/test_set.rb
index 5774af741e..aaf3bfe3b8 100644
--- a/test/test_set.rb
+++ b/test/test_set.rb
@@ -715,6 +715,17 @@ class TC_Set < Test::Unit::TestCase
     assert_equal('#<Set: {#<Set: {0}>, 1, 2, #<Set: {1, 2, #<Set: {...}>}>}>', set2.inspect)
   end
 
+  def test_to_s
+    set1 = Set[1, 2]
+    assert_equal('#<Set: {1, 2}>', set1.to_s)
+
+    set2 = Set[Set[0], 1, 2, set1]
+    assert_equal('#<Set: {#<Set: {0}>, 1, 2, #<Set: {1, 2}>}>', set2.to_s)
+
+    set1.add(set2)
+    assert_equal('#<Set: {#<Set: {0}>, 1, 2, #<Set: {1, 2, #<Set: {...}>}>}>', set2.to_s)
+  end
+
   def test_compare_by_identity
     a1, a2 = "a", "a"
     b1, b2 = "b", "b"
-- 
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