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Fixed HashWithIndifferentAccess#default (closes #5586) [chris@seagul.co.uk]
git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4539 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
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3 changed files with 31 additions and 4 deletions
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@ -1,5 +1,7 @@
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*SVN*
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* Fixed HashWithIndifferentAccess#default #5586 [chris@seagul.co.uk]
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* More compatible Hash.create_from_xml. #5523 [nunemaker@gmail.com]
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* Added Enumerable#sum for calculating a sum from the elements [DHH, jonathan@daikini.com]. Examples:
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@ -11,9 +11,10 @@ class HashWithIndifferentAccess < Hash
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end
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end
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def default(key)
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self[key.to_s] if key.is_a?(Symbol)
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end
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def default(key = nil)
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value = self[key.to_s] if key.is_a?(Symbol)
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value ? value : super
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end
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alias_method :regular_writer, :[]= unless method_defined?(:regular_writer)
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alias_method :regular_update, :update unless method_defined?(:regular_update)
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@ -74,7 +75,9 @@ module ActiveSupport #:nodoc:
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module Hash #:nodoc:
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module IndifferentAccess #:nodoc:
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def with_indifferent_access
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HashWithIndifferentAccess.new(self)
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hash = HashWithIndifferentAccess.new(self)
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hash.default = self.default
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hash
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end
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end
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end
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@ -380,4 +380,26 @@ class HashToXmlTest < Test::Unit::TestCase
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assert_equal expected_topic_hash, Hash.create_from_xml(topic_xml)["rsp"]["photos"]["photo"]
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end
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def test_should_use_default_value_for_unknown_key
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hash_wia = HashWithIndifferentAccess.new(3)
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assert_equal 3, hash_wia[:new_key]
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end
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def test_should_use_default_value_if_no_key_is_supplied
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hash_wia = HashWithIndifferentAccess.new(3)
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assert_equal 3, hash_wia.default
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end
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def test_should_nil_if_no_default_value_is_supplied
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hash_wia = HashWithIndifferentAccess.new
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assert_nil hash_wia.default
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end
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def test_should_copy_the_default_value_when_converting_to_hash_with_indifferent_access
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hash = Hash.new(3)
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hash_wia = hash.with_indifferent_access
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assert_equal 3, hash_wia.default
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end
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end
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