264 lines
7.3 KiB
Ruby
264 lines
7.3 KiB
Ruby
require 'abstract_unit'
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class OrderedHashTest < Test::Unit::TestCase
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def setup
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@keys = %w( blue green red pink orange )
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@values = %w( 000099 009900 aa0000 cc0066 cc6633 )
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@hash = Hash.new
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@ordered_hash = ActiveSupport::OrderedHash.new
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@keys.each_with_index do |key, index|
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@hash[key] = @values[index]
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@ordered_hash[key] = @values[index]
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end
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end
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def test_order
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assert_equal @keys, @ordered_hash.keys
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assert_equal @values, @ordered_hash.values
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end
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def test_access
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assert @hash.all? { |k, v| @ordered_hash[k] == v }
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end
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def test_assignment
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key, value = 'purple', '5422a8'
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@ordered_hash[key] = value
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assert_equal @keys.length + 1, @ordered_hash.length
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assert_equal key, @ordered_hash.keys.last
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assert_equal value, @ordered_hash.values.last
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assert_equal value, @ordered_hash[key]
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end
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def test_delete
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key, value = 'white', 'ffffff'
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bad_key = 'black'
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@ordered_hash[key] = value
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assert_equal @keys.length + 1, @ordered_hash.length
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assert_equal @ordered_hash.keys.length, @ordered_hash.length
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assert_equal value, @ordered_hash.delete(key)
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assert_equal @keys.length, @ordered_hash.length
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assert_equal @ordered_hash.keys.length, @ordered_hash.length
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assert_nil @ordered_hash.delete(bad_key)
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end
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def test_to_hash
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assert_same @ordered_hash, @ordered_hash.to_hash
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end
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def test_to_a
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assert_equal @keys.zip(@values), @ordered_hash.to_a
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end
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def test_has_key
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assert_equal true, @ordered_hash.has_key?('blue')
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assert_equal true, @ordered_hash.key?('blue')
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assert_equal true, @ordered_hash.include?('blue')
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assert_equal true, @ordered_hash.member?('blue')
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assert_equal false, @ordered_hash.has_key?('indigo')
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assert_equal false, @ordered_hash.key?('indigo')
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assert_equal false, @ordered_hash.include?('indigo')
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assert_equal false, @ordered_hash.member?('indigo')
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end
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def test_has_value
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assert_equal true, @ordered_hash.has_value?('000099')
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assert_equal true, @ordered_hash.value?('000099')
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assert_equal false, @ordered_hash.has_value?('ABCABC')
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assert_equal false, @ordered_hash.value?('ABCABC')
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end
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def test_each_key
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keys = []
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@ordered_hash.each_key { |k| keys << k }
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assert_equal @keys, keys
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end
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def test_each_value
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values = []
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@ordered_hash.each_value { |v| values << v }
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assert_equal @values, values
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end
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def test_each
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values = []
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@ordered_hash.each {|key, value| values << value}
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assert_equal @values, values
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end
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def test_each_with_index
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@ordered_hash.each_with_index { |pair, index| assert_equal [@keys[index], @values[index]], pair}
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end
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def test_each_pair
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values = []
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keys = []
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@ordered_hash.each_pair do |key, value|
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keys << key
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values << value
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end
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assert_equal @values, values
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assert_equal @keys, keys
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end
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def test_delete_if
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copy = @ordered_hash.dup
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copy.delete('pink')
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assert_equal copy, @ordered_hash.delete_if { |k, _| k == 'pink' }
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assert !@ordered_hash.keys.include?('pink')
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end
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def test_reject!
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(copy = @ordered_hash.dup).delete('pink')
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@ordered_hash.reject! { |k, _| k == 'pink' }
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assert_equal copy, @ordered_hash
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assert !@ordered_hash.keys.include?('pink')
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end
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def test_reject
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copy = @ordered_hash.dup
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new_ordered_hash = @ordered_hash.reject { |k, _| k == 'pink' }
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assert_equal copy, @ordered_hash
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assert !new_ordered_hash.keys.include?('pink')
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assert @ordered_hash.keys.include?('pink')
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end
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def test_clear
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@ordered_hash.clear
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assert_equal [], @ordered_hash.keys
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end
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def test_merge
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other_hash = ActiveSupport::OrderedHash.new
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other_hash['purple'] = '800080'
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other_hash['violet'] = 'ee82ee'
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merged = @ordered_hash.merge other_hash
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assert_equal merged.length, @ordered_hash.length + other_hash.length
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assert_equal @keys + ['purple', 'violet'], merged.keys
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@ordered_hash.merge! other_hash
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assert_equal @ordered_hash, merged
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assert_equal @ordered_hash.keys, merged.keys
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end
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def test_merge_with_block
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hash = ActiveSupport::OrderedHash.new
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hash[:a] = 0
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hash[:b] = 0
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merged = hash.merge(:b => 2, :c => 7) do |key, old_value, new_value|
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new_value + 1
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end
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assert_equal 0, merged[:a]
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assert_equal 3, merged[:b]
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assert_equal 7, merged[:c]
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end
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def test_merge_bang_with_block
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hash = ActiveSupport::OrderedHash.new
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hash[:a] = 0
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hash[:b] = 0
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hash.merge!(:a => 1, :c => 7) do |key, old_value, new_value|
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new_value + 3
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end
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assert_equal 4, hash[:a]
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assert_equal 0, hash[:b]
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assert_equal 7, hash[:c]
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end
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def test_shift
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pair = @ordered_hash.shift
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assert_equal [@keys.first, @values.first], pair
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assert !@ordered_hash.keys.include?(pair.first)
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end
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def test_keys
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original = @ordered_hash.keys.dup
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@ordered_hash.keys.pop
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assert_equal original, @ordered_hash.keys
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end
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def test_inspect
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assert @ordered_hash.inspect.include?(@hash.inspect)
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end
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def test_alternate_initialization_with_splat
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alternate = ActiveSupport::OrderedHash[1,2,3,4]
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assert_kind_of ActiveSupport::OrderedHash, alternate
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assert_equal [1, 3], alternate.keys
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end
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def test_alternate_initialization_with_array
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alternate = ActiveSupport::OrderedHash[ [
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[1, 2],
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[3, 4],
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"bad key value pair",
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[ 'missing value' ]
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]]
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assert_kind_of ActiveSupport::OrderedHash, alternate
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assert_equal [1, 3, 'missing value'], alternate.keys
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assert_equal [2, 4, nil ], alternate.values
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end
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def test_alternate_initialization_raises_exception_on_odd_length_args
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begin
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alternate = ActiveSupport::OrderedHash[1,2,3,4,5]
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flunk "Hash::[] should have raised an exception on initialization " +
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"with an odd number of parameters"
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rescue
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assert_equal "odd number of arguments for Hash", $!.message
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end
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end
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def test_replace_updates_keys
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@other_ordered_hash = ActiveSupport::OrderedHash[:black, '000000', :white, '000000']
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original = @ordered_hash.replace(@other_ordered_hash)
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assert_same original, @ordered_hash
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assert_equal @other_ordered_hash.keys, @ordered_hash.keys
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end
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def test_each_after_yaml_serialization
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values = []
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@deserialized_ordered_hash = YAML::load(YAML::dump(@ordered_hash))
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@deserialized_ordered_hash.each {|key, value| values << value}
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assert_equal @values, values
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end
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def test_order_after_yaml_serialization
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@deserialized_ordered_hash = YAML::load(YAML::dump(@ordered_hash))
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assert_equal @keys, @deserialized_ordered_hash.keys
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assert_equal @values, @deserialized_ordered_hash.values
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end
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def test_order_after_yaml_serialization_with_nested_arrays
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@ordered_hash[:array] = %w(a b c)
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@deserialized_ordered_hash = YAML::load(YAML::dump(@ordered_hash))
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assert_equal @ordered_hash.keys, @deserialized_ordered_hash.keys
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assert_equal @ordered_hash.values, @deserialized_ordered_hash.values
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end
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def test_update_sets_keys
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@updated_ordered_hash = ActiveSupport::OrderedHash.new
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@updated_ordered_hash.update(:name => "Bob")
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assert_equal [:name], @updated_ordered_hash.keys
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end
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def test_invert
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expected = ActiveSupport::OrderedHash[@values.zip(@keys)]
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assert_equal expected, @ordered_hash.invert
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assert_equal @values.zip(@keys), @ordered_hash.invert.to_a
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end
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end
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