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-rw-r--r--activesupport/lib/active_support/ordered_hash.rb4
-rw-r--r--activesupport/test/ordered_hash_test.rb5
2 files changed, 8 insertions, 1 deletions
diff --git a/activesupport/lib/active_support/ordered_hash.rb b/activesupport/lib/active_support/ordered_hash.rb
index 58a2ce2105..4680d5acb7 100644
--- a/activesupport/lib/active_support/ordered_hash.rb
+++ b/activesupport/lib/active_support/ordered_hash.rb
@@ -28,6 +28,10 @@ module ActiveSupport
coder.represent_seq '!omap', map { |k,v| { k => v } }
end
+ def select(*args, &block)
+ dup.tap { |hash| hash.select!(*args, &block) }
+ end
+
def reject(*args, &block)
dup.tap { |hash| hash.reject!(*args, &block) }
end
diff --git a/activesupport/test/ordered_hash_test.rb b/activesupport/test/ordered_hash_test.rb
index 0b54026c64..460a61613e 100644
--- a/activesupport/test/ordered_hash_test.rb
+++ b/activesupport/test/ordered_hash_test.rb
@@ -120,7 +120,9 @@ class OrderedHashTest < ActiveSupport::TestCase
end
def test_select
- assert_equal @keys, @ordered_hash.select { true }.map(&:first)
+ new_ordered_hash = @ordered_hash.select { true }
+ assert_equal @keys, new_ordered_hash.map(&:first)
+ assert_instance_of ActiveSupport::OrderedHash, new_ordered_hash
end
def test_delete_if
@@ -143,6 +145,7 @@ class OrderedHashTest < ActiveSupport::TestCase
assert_equal copy, @ordered_hash
assert !new_ordered_hash.keys.include?('pink')
assert @ordered_hash.keys.include?('pink')
+ assert_instance_of ActiveSupport::OrderedHash, new_ordered_hash
end
def test_clear