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require 'spec_helper'
require 'support/module_context'
def invoke(method)
if subject == object
subject.public_send(method)
else
subject.public_send(method, object)
end
end
shared_examples 'symbolize_keys!' do
it 'converts keys to symbols' do
object['abc'] = 'abc'
object['def'] = 'def'
invoke :symbolize_keys!
expect((object.keys & %i[abc def]).size).to eq 2
end
it 'converts nested instances of the same class' do
object['ab'] = dummy_class.new
object['ab']['cd'] = dummy_class.new
object['ab']['cd']['ef'] = 'abcdef'
invoke :symbolize_keys!
expect(object).to eq(ab: { cd: { ef: 'abcdef' } })
end
it 'converts nested hashes' do
object['ab'] = { 'cd' => { 'ef' => 'abcdef' } }
invoke :symbolize_keys!
expect(object).to eq(ab: { cd: { ef: 'abcdef' } })
end
it 'performs deep conversion within nested arrays' do
object['ab'] = []
object['ab'] << dummy_class.new
object['ab'] << dummy_class.new
object['ab'][0]['cd'] = 'abcd'
object['ab'][1]['ef'] = 'abef'
new_object = invoke :symbolize_keys
expect(new_object).to eq(ab: [{ cd: 'abcd' }, { ef: 'abef' }])
end
end
shared_examples 'symbolize_keys' do
it 'converts keys to symbols' do
object['abc'] = 'def'
copy = invoke :symbolize_keys
expect(copy[:abc]).to eq 'def'
end
it 'does not alter the original' do
object['abc'] = 'def'
copy = invoke :symbolize_keys
expect(object.keys).to eq ['abc']
expect(copy.keys).to eq [:abc]
end
end
describe Hashie::Extensions::SymbolizeKeys do
include_context 'included hash module'
let(:object) { subject }
describe '#symbolize_keys!' do
include_examples 'symbolize_keys!'
let(:object) { subject }
it 'returns itself' do
expect(subject.symbolize_keys!).to eq subject
end
end
describe '#symbolize_keys' do
include_examples 'symbolize_keys'
end
context 'class methods' do
subject { described_class }
let(:object) { {} }
describe '.symbolize_keys' do
include_examples 'symbolize_keys'
end
describe '.symbolize_keys!' do
include_examples 'symbolize_keys!'
end
end
context 'singleton methods' do
subject { Hash }
let(:object) do
subject.new.merge('a' => 1, 'b' => { 'c' => 2 }, 1 => 'numeric key')
.extend(Hashie::Extensions::SymbolizeKeys)
end
let(:expected_hash) { { a: 1, b: { c: 2 }, 1 => 'numeric key' } }
describe '.symbolize_keys' do
it 'does not raise error' do
expect { object.symbolize_keys }.not_to raise_error
end
it 'produces expected symbolized hash' do
expect(object.symbolize_keys).to eq(expected_hash)
end
end
describe '.symbolize_keys!' do
it 'does not raise error' do
expect { object.symbolize_keys! }.not_to raise_error
end
it 'produces expected symbolized hash' do
expect(object.symbolize_keys!).to eq(expected_hash)
end
end
end
end
describe Hashie do
let!(:dummy_class) do
klass = Class.new(::Hash)
klass.send :include, Hashie::Extensions::StringifyKeys
klass
end
subject { described_class }
let(:object) { {} }
describe '.symbolize_keys' do
include_examples 'symbolize_keys'
end
describe '.symbolize_keys!' do
include_examples 'symbolize_keys!'
end
end
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