diff options
author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-12-07 02:16:04 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-12-07 02:16:04 +0000 |
commit | 7416073cded9976e7b87d142cca79ce2b0fcc845 (patch) | |
tree | 21793d331381dad60abda6eb4394ccd211d3cbd6 /test/ruby/test_enumerator.rb | |
parent | 77280b6cd66467c7ff7f04c4849dd4a5181d5397 (diff) |
hash.c: rb_hash_reject without dup
* hash.c (rb_hash_reject): copy unrejected elements only to new hash,
so that the change on the original receiver can affect.
[ruby-core:58914] [Bug #9223]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@44047 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'test/ruby/test_enumerator.rb')
-rw-r--r-- | test/ruby/test_enumerator.rb | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/test/ruby/test_enumerator.rb b/test/ruby/test_enumerator.rb index e08edd512c..1d583e4fee 100644 --- a/test/ruby/test_enumerator.rb +++ b/test/ruby/test_enumerator.rb @@ -501,9 +501,13 @@ class TestEnumerator < Test::Unit::TestCase def test_size_for_enum_created_from_hash h = {a: 1, b: 2, c: 3} - %i[delete_if reject! select select! keep_if each each_key each_pair].each do |method| - assert_equal 3, h.send(method).size - end + methods = %i[delete_if reject reject! select select! keep_if each each_key each_pair] + enums = methods.map {|method| h.send(method)} + s = enums.group_by(&:size) + assert_equal([3], s.keys, ->{s.reject!{|k| k==3}.inspect}) + h[:d] = 4 + s = enums.group_by(&:size) + assert_equal([4], s.keys, ->{s.reject!{|k| k==4}.inspect}) end def test_size_for_enum_created_from_env |