From 52bb93c25a13600e9c7cc35f658db09b3ed349c4 Mon Sep 17 00:00:00 2001 From: mrkn Date: Fri, 26 Jan 2018 01:33:45 +0000 Subject: hash.c: support key swapping in Hash#transform_keys! * hash.c (rb_hash_transform_keys_bang): support key swapping in Hash#transform_keys! [Bug #14380] [ruby-core:84951] * test/ruby/test_hash.rb (test_transform_keys_bang): add assertions for this change git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@62042 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- test/ruby/test_hash.rb | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'test/ruby') diff --git a/test/ruby/test_hash.rb b/test/ruby/test_hash.rb index 313c2fd9de..55e46584b4 100644 --- a/test/ruby/test_hash.rb +++ b/test/ruby/test_hash.rb @@ -1576,6 +1576,14 @@ class TestHash < Test::Unit::TestCase x.transform_keys!.with_index {|k, i| "#{k}.#{i}" } assert_equal(%w(a!.0 b!.1 c!.2), x.keys) + + x = @cls[1 => :a, -1 => :b] + x.transform_keys! {|k| -k } + assert_equal([-1, :a, 1, :b], x.flatten) + + x = @cls[true => :a, false => :b] + x.transform_keys! {|k| !k } + assert_equal([false, :a, true, :b], x.flatten) end def test_transform_values -- cgit v1.2.3