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rails--rails/activesupport/test/ordered_hash_test.rb

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# frozen_string_literal: true
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"
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class OrderedHashTest < ActiveSupport::TestCase
def setup
@keys = %w( blue green red pink orange )
@values = %w( 000099 009900 aa0000 cc0066 cc6633 )
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@hash = Hash.new
@ordered_hash = ActiveSupport::OrderedHash.new
@keys.each_with_index do |key, index|
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@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
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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
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def test_inspect
assert_includes @ordered_hash.inspect, @hash.inspect
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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
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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
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@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)
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@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
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def test_has_yaml_tag
@ordered_hash[:array] = %w(a b c)
assert_match "!omap", YAML.dump(@ordered_hash)
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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