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require 'spec_helper'
describe Hashie::Extensions::IgnoreUndeclared do
context 'included in Trash' do
class ForgivingTrash < Hashie::Trash
include Hashie::Extensions::IgnoreUndeclared
property :city
property :state, from: :provence
property :str_state, from: 'str_provence'
end
subject { ForgivingTrash }
it 'silently ignores undeclared properties on initialization' do
expect { subject.new(city: 'Toronto', provence: 'ON', country: 'Canada') }.to_not raise_error
end
it 'works with translated properties (with symbol keys)' do
expect(subject.new(provence: 'Ontario').state).to eq('Ontario')
end
it 'works with translated properties (with string keys)' do
expect(subject.new('str_provence' => 'Ontario').str_state).to eq('Ontario')
end
it 'requires properties to be declared on assignment' do
hash = subject.new(city: 'Toronto')
expect { hash.country = 'Canada' }.to raise_error(NoMethodError)
end
context 'with a default value' do
let(:test) do
Class.new(Hashie::Trash) do
include Hashie::Extensions::IgnoreUndeclared
property :description, from: :desc, default: ''
end
end
include_examples 'Dash default handling', :description, :desc
end
end
context 'combined with DeepMerge' do
class ForgivingTrashWithMerge < Hashie::Trash
include Hashie::Extensions::DeepMerge
include Hashie::Extensions::IgnoreUndeclared
property :some_key
end
it 'deep merges' do
class ForgivingTrashWithMergeAndProperty < ForgivingTrashWithMerge
property :some_other_key
end
hash = ForgivingTrashWithMergeAndProperty.new(some_ignored_key: 17, some_key: 12)
expect(hash.deep_merge(some_other_key: 55, some_ignored_key: 18))
.to eq(some_key: 12, some_other_key: 55)
end
end
end
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