forked from rubocop/rubocop-ast
/
tuple_spec.rb
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/
tuple_spec.rb
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# frozen_string_literal: true
RSpec.describe RuboCop::AST::Tuple do
shared_examples 'a tuple' do
it { is_expected.to be_frozen }
it { expect(tuple.include?(:included)).to be true }
it { expect(tuple.include?(:not_included)).to be false }
it { is_expected.to eq tuple.dup }
describe '#to_a' do
subject { tuple.to_a }
it { is_expected.to equal tuple.to_a }
it { is_expected.to be_frozen }
it { is_expected.to include :included }
end
describe '#to_set' do
subject { tuple.to_set }
it { is_expected.to equal tuple.to_set }
it { is_expected.to be_frozen }
it { is_expected.to be >= Set[:included] }
end
end
let(:values) { %i[included also_included] }
describe '.new' do
subject(:tuple) { described_class.new(values) }
it_behaves_like 'a tuple'
it 'enforces a single array argument' do
expect { described_class.new }.to raise_error ArgumentError
expect { described_class.new(5) }.to raise_error ArgumentError
end
it 'has freeze return self' do
expect(tuple.freeze).to equal tuple
end
it 'has the right case equality' do
expect(tuple).to be === :included # rubocop:disable Style/CaseEquality
end
end
describe '.[]' do
subject(:tuple) { described_class[*values] }
it_behaves_like 'a tuple'
end
describe '()' do
subject(:tuple) { Tuple values }
it_behaves_like 'a tuple'
end
end