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-rw-r--r--activesupport/test/core_ext/hash_ext_test.rb6
1 files changed, 6 insertions, 0 deletions
diff --git a/activesupport/test/core_ext/hash_ext_test.rb b/activesupport/test/core_ext/hash_ext_test.rb
index 0857796036..2d0c56bef5 100644
--- a/activesupport/test/core_ext/hash_ext_test.rb
+++ b/activesupport/test/core_ext/hash_ext_test.rb
@@ -487,6 +487,12 @@ class HashExtTest < ActiveSupport::TestCase
assert_instance_of ActiveSupport::HashWithIndifferentAccess, hash
end
+ def test_indifferent_select_returns_a_hash_when_unchanged
+ hash = ActiveSupport::HashWithIndifferentAccess.new(@strings).select {|k,v| true}
+
+ assert_instance_of ActiveSupport::HashWithIndifferentAccess, hash
+ end
+
def test_indifferent_select_bang
indifferent_strings = ActiveSupport::HashWithIndifferentAccess.new(@strings)
indifferent_strings.select! {|k,v| v == 1}