require "abstract_unit" require "active_support/json" require "active_support/core_ext/object/json" require "active_support/core_ext/hash/indifferent_access" require "active_support/core_ext/array/extract_options" class OrderedHashTest < ActiveSupport::TestCase def setup @keys = %w( blue green red pink orange ) @values = %w( 000099 009900 aa0000 cc0066 cc6633 ) @hash = Hash.new @ordered_hash = ActiveSupport::OrderedHash.new @keys.each_with_index do |key, index| @hash[key] = @values[index] @ordered_hash[key] = @values[index] end end def test_order assert_equal @keys, @ordered_hash.keys assert_equal @values, @ordered_hash.values end def test_access assert @hash.all? { |k, v| @ordered_hash[k] == v } end def test_assignment key, value = "purple", "5422a8" @ordered_hash[key] = value assert_equal @keys.length + 1, @ordered_hash.length assert_equal key, @ordered_hash.keys.last assert_equal value, @ordered_hash.values.last assert_equal value, @ordered_hash[key] end def test_delete key, value = "white", "ffffff" bad_key = "black" @ordered_hash[key] = value assert_equal @keys.length + 1, @ordered_hash.length assert_equal @ordered_hash.keys.length, @ordered_hash.length assert_equal value, @ordered_hash.delete(key) assert_equal @keys.length, @ordered_hash.length assert_equal @ordered_hash.keys.length, @ordered_hash.length assert_nil @ordered_hash.delete(bad_key) end def test_to_hash assert_same @ordered_hash, @ordered_hash.to_hash end def test_to_a assert_equal @keys.zip(@values), @ordered_hash.to_a end def test_has_key assert_equal true, @ordered_hash.has_key?("blue") assert_equal true, @ordered_hash.key?("blue") assert_equal true, @ordered_hash.include?("blue") assert_equal true, @ordered_hash.member?("blue") assert_equal false, @ordered_hash.has_key?("indigo") assert_equal false, @ordered_hash.key?("indigo") assert_equal false, @ordered_hash.include?("indigo") assert_equal false, @ordered_hash.member?("indigo") end def test_has_value assert_equal true, @ordered_hash.has_value?("000099") assert_equal true, @ordered_hash.value?("000099") assert_equal false, @ordered_hash.has_value?("ABCABC") assert_equal false, @ordered_hash.value?("ABCABC") end def test_each_key keys = [] assert_equal @ordered_hash, @ordered_hash.each_key { |k| keys << k } assert_equal @keys, keys assert_kind_of Enumerator, @ordered_hash.each_key end def test_each_value values = [] assert_equal @ordered_hash, @ordered_hash.each_value { |v| values << v } assert_equal @values, values assert_kind_of Enumerator, @ordered_hash.each_value end def test_each values = [] assert_equal @ordered_hash, @ordered_hash.each { |key, value| values << value } assert_equal @values, values assert_kind_of Enumerator, @ordered_hash.each end def test_each_with_index @ordered_hash.each_with_index { |pair, index| assert_equal [@keys[index], @values[index]], pair } end def test_each_pair values = [] keys = [] @ordered_hash.each_pair do |key, value| keys << key values << value end assert_equal @values, values assert_equal @keys, keys assert_kind_of Enumerator, @ordered_hash.each_pair end def test_find_all assert_equal @keys, @ordered_hash.find_all { true }.map(&:first) end def test_select 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 copy = @ordered_hash.dup copy.delete("pink") assert_equal copy, @ordered_hash.delete_if { |k, _| k == "pink" } assert_not_includes @ordered_hash.keys, "pink" end def test_reject! (copy = @ordered_hash.dup).delete("pink") @ordered_hash.reject! { |k, _| k == "pink" } assert_equal copy, @ordered_hash assert_not_includes @ordered_hash.keys, "pink" end def test_reject copy = @ordered_hash.dup new_ordered_hash = @ordered_hash.reject { |k, _| k == "pink" } assert_equal copy, @ordered_hash assert_not_includes new_ordered_hash.keys, "pink" assert_includes @ordered_hash.keys, "pink" assert_instance_of ActiveSupport::OrderedHash, new_ordered_hash end def test_clear @ordered_hash.clear assert_equal [], @ordered_hash.keys end def test_merge other_hash = ActiveSupport::OrderedHash.new other_hash["purple"] = "800080" other_hash["violet"] = "ee82ee" merged = @ordered_hash.merge other_hash assert_equal merged.length, @ordered_hash.length + other_hash.length assert_equal @keys + ["purple", "violet"], merged.keys end def test_merge_with_block hash = ActiveSupport::OrderedHash.new hash[:a] = 0 hash[:b] = 0 merged = hash.merge(b: 2, c: 7) do |key, old_value, new_value| new_value + 1 end assert_equal 0, merged[:a] assert_equal 3, merged[:b] assert_equal 7, merged[:c] end def test_merge_bang_with_block hash = ActiveSupport::OrderedHash.new hash[:a] = 0 hash[:b] = 0 hash.merge!(a: 1, c: 7) do |key, old_value, new_value| new_value + 3 end assert_equal 4, hash[:a] assert_equal 0, hash[:b] assert_equal 7, hash[:c] end def test_shift pair = @ordered_hash.shift assert_equal [@keys.first, @values.first], pair assert_not_includes @ordered_hash.keys, pair.first end def test_keys original = @ordered_hash.keys.dup @ordered_hash.keys.pop assert_equal original, @ordered_hash.keys end def test_inspect assert_includes @ordered_hash.inspect, @hash.inspect end def test_json ordered_hash = ActiveSupport::OrderedHash[:foo, :bar] hash = Hash[:foo, :bar] assert_equal ordered_hash.to_json, hash.to_json end def test_alternate_initialization_with_splat alternate = ActiveSupport::OrderedHash[1, 2, 3, 4] assert_kind_of ActiveSupport::OrderedHash, alternate assert_equal [1, 3], alternate.keys end def test_alternate_initialization_with_array alternate = ActiveSupport::OrderedHash[ [ [1, 2], [3, 4], [ "missing value" ] ]] assert_kind_of ActiveSupport::OrderedHash, alternate assert_equal [1, 3, "missing value"], alternate.keys assert_equal [2, 4, nil ], alternate.values end def test_alternate_initialization_raises_exception_on_odd_length_args assert_raises ArgumentError do ActiveSupport::OrderedHash[1, 2, 3, 4, 5] end end def test_replace_updates_keys @other_ordered_hash = ActiveSupport::OrderedHash[:black, "000000", :white, "000000"] original = @ordered_hash.replace(@other_ordered_hash) assert_same original, @ordered_hash assert_equal @other_ordered_hash.keys, @ordered_hash.keys end def test_nested_under_indifferent_access flash = { a: ActiveSupport::OrderedHash[:b, 1, :c, 2] }.with_indifferent_access assert_kind_of ActiveSupport::OrderedHash, flash[:a] end def test_each_after_yaml_serialization assert_equal @values, YAML.load(YAML.dump(@ordered_hash)).values end def test_each_when_yielding_to_block_with_splat hash_values = [] ordered_hash_values = [] @hash.each { |*v| hash_values << v } @ordered_hash.each { |*v| ordered_hash_values << v } assert_equal hash_values.sort, ordered_hash_values.sort end def test_each_pair_when_yielding_to_block_with_splat hash_values = [] ordered_hash_values = [] @hash.each_pair { |*v| hash_values << v } @ordered_hash.each_pair { |*v| ordered_hash_values << v } assert_equal hash_values.sort, ordered_hash_values.sort end def test_order_after_yaml_serialization @deserialized_ordered_hash = YAML.load(YAML.dump(@ordered_hash)) assert_equal @keys, @deserialized_ordered_hash.keys assert_equal @values, @deserialized_ordered_hash.values end def test_order_after_yaml_serialization_with_nested_arrays @ordered_hash[:array] = %w(a b c) @deserialized_ordered_hash = YAML.load(YAML.dump(@ordered_hash)) assert_equal @ordered_hash.keys, @deserialized_ordered_hash.keys assert_equal @ordered_hash.values, @deserialized_ordered_hash.values end def test_psych_serialize @deserialized_ordered_hash = Psych.load(Psych.dump(@ordered_hash)) values = @deserialized_ordered_hash.map { |_, value| value } assert_equal @values, values end def test_psych_serialize_tag yaml = Psych.dump(@ordered_hash) assert_match "!omap", yaml end def test_has_yaml_tag @ordered_hash[:array] = %w(a b c) assert_match "!omap", YAML.dump(@ordered_hash) end def test_update_sets_keys @updated_ordered_hash = ActiveSupport::OrderedHash.new @updated_ordered_hash.update(name: "Bob") assert_equal [:name], @updated_ordered_hash.keys end def test_invert expected = ActiveSupport::OrderedHash[@values.zip(@keys)] assert_equal expected, @ordered_hash.invert assert_equal @values.zip(@keys), @ordered_hash.invert.to_a end def test_extractable @ordered_hash[:rails] = "snowman" assert_equal @ordered_hash, [1, 2, @ordered_hash].extract_options! end end