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# This set of tests verifies that Hashie::Extensions::IndifferentAccess works with
# ActiveSupport HashWithIndifferentAccess hashes. See #164 and #166 for details.
require 'active_support/hash_with_indifferent_access'
require 'active_support/core_ext/hash'
require 'spec_helper'
describe Hashie::Extensions::IndifferentAccess do
class IndifferentHashWithMergeInitializer < Hash
include Hashie::Extensions::MergeInitializer
include Hashie::Extensions::IndifferentAccess
class << self
alias build new
end
end
class IndifferentHashWithArrayInitializer < Hash
include Hashie::Extensions::IndifferentAccess
class << self
alias build []
end
end
class IndifferentHashWithTryConvertInitializer < Hash
include Hashie::Extensions::IndifferentAccess
class << self
alias build try_convert
end
end
class CoercableHash < Hash
include Hashie::Extensions::Coercion
include Hashie::Extensions::MergeInitializer
end
class MashWithIndifferentAccess < Hashie::Mash
include Hashie::Extensions::IndifferentAccess
end
shared_examples_for 'hash with indifferent access' do
it 'is able to access via string or symbol' do
indifferent_hash = ActiveSupport::HashWithIndifferentAccess.new(abc: 123)
h = subject.build(indifferent_hash)
expect(h[:abc]).to eq 123
expect(h['abc']).to eq 123
end
describe '#values_at' do
it 'indifferently finds values' do
indifferent_hash = ActiveSupport::HashWithIndifferentAccess.new(
:foo => 'bar', 'baz' => 'qux'
)
h = subject.build(indifferent_hash)
expect(h.values_at('foo', :baz)).to eq %w[bar qux]
end
end
describe '#fetch' do
it 'works like normal fetch, but indifferent' do
indifferent_hash = ActiveSupport::HashWithIndifferentAccess.new(foo: 'bar')
h = subject.build(indifferent_hash)
expect(h.fetch(:foo)).to eq h.fetch('foo')
expect(h.fetch(:foo)).to eq 'bar'
end
end
describe '#delete' do
it 'deletes indifferently' do
indifferent_hash = ActiveSupport::HashWithIndifferentAccess.new(
:foo => 'bar',
'baz' => 'qux'
)
h = subject.build(indifferent_hash)
h.delete('foo')
h.delete(:baz)
expect(h).to be_empty
end
end
describe '#key?' do
let(:h) do
indifferent_hash = ActiveSupport::HashWithIndifferentAccess.new(foo: 'bar')
subject.build(indifferent_hash)
end
it 'finds it indifferently' do
expect(h).to be_key(:foo)
expect(h).to be_key('foo')
end
%w[include? member? has_key?].each do |key_alias|
it "is aliased as #{key_alias}" do
expect(h.send(key_alias.to_sym, :foo)).to be(true)
expect(h.send(key_alias.to_sym, 'foo')).to be(true)
end
end
end
describe '#update' do
let(:h) do
indifferent_hash = ActiveSupport::HashWithIndifferentAccess.new(foo: 'bar')
subject.build(indifferent_hash)
end
it 'allows keys to be indifferent still' do
h.update(baz: 'qux')
expect(h['foo']).to eq 'bar'
expect(h['baz']).to eq 'qux'
end
it 'recursively injects indifference into sub-hashes' do
h.update(baz: { qux: 'abc' })
expect(h['baz']['qux']).to eq 'abc'
end
it 'does not change the ancestors of the injected object class' do
h.update(baz: { qux: 'abc' })
expect({}).not_to be_respond_to(:indifferent_access?)
end
end
describe '#replace' do
let(:h) do
indifferent_hash = ActiveSupport::HashWithIndifferentAccess.new(foo: 'bar')
subject.build(indifferent_hash).replace(bar: 'baz', hi: 'bye')
end
it 'returns self' do
expect(h).to be_a(subject)
end
it 'removes old keys' do
[:foo, 'foo'].each do |k|
expect(h[k]).to be_nil
expect(h.key?(k)).to be_falsy
end
end
it 'creates new keys with indifferent access' do
[:bar, 'bar', :hi, 'hi'].each { |k| expect(h.key?(k)).to be_truthy }
expect(h[:bar]).to eq 'baz'
expect(h['bar']).to eq 'baz'
expect(h[:hi]).to eq 'bye'
expect(h['hi']).to eq 'bye'
end
end
describe '#try_convert' do
describe 'with conversion' do
let(:h) do
indifferent_hash = ActiveSupport::HashWithIndifferentAccess.new(foo: 'bar')
subject.try_convert(indifferent_hash)
end
it 'is a subject' do
expect(h).to be_a(subject)
end
end
describe 'without conversion' do
let(:h) { subject.try_convert('{ :foo => bar }') }
it 'is nil' do
expect(h).to be_nil
end
end
end
end
describe 'with merge initializer' do
subject { IndifferentHashWithMergeInitializer }
it_should_behave_like 'hash with indifferent access'
end
describe 'with array initializer' do
subject { IndifferentHashWithArrayInitializer }
it_should_behave_like 'hash with indifferent access'
end
describe 'with try convert initializer' do
subject { IndifferentHashWithTryConvertInitializer }
it_should_behave_like 'hash with indifferent access'
end
describe 'with coercion' do
subject { CoercableHash }
let(:instance) { subject.new }
it 'supports coercion for ActiveSupport::HashWithIndifferentAccess' do
subject.coerce_key :foo, ActiveSupport::HashWithIndifferentAccess.new(Coercable => Coercable)
instance[:foo] = { 'bar_key' => 'bar_value', 'bar2_key' => 'bar2_value' }
expect(instance[:foo].keys).to all(be_coerced)
expect(instance[:foo].values).to all(be_coerced)
expect(instance[:foo]).to be_a(ActiveSupport::HashWithIndifferentAccess)
end
end
describe 'Mash with indifferent access' do
it 'is able to be created for a deep nested HashWithIndifferentAccess' do
indifferent_hash = ActiveSupport::HashWithIndifferentAccess.new(abc: { def: 123 })
MashWithIndifferentAccess.new(indifferent_hash)
end
end
end
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