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require_relative 'struct_shared'
module Concurrent
RSpec.describe MutableStruct do
it_should_behave_like :struct
it_should_behave_like :mergeable_struct
let(:anonymous) { described_class.new(:name, :address, :zip) }
let!(:customer) { described_class.new('Customer', :name, :address, :zip) }
let(:joe) { customer.new('Joe Smith', '123 Maple, Anytown NC', 12345) }
subject { anonymous.new('Joe Smith', '123 Maple, Anytown NC', 12345) }
context 'definition' do
it 'defines a setter for each member' do
members = [:Foo, :bar, 'baz']
structs = [
described_class.new(*members).new,
described_class.new('ClassForCheckingSetterDefinition', *members).new
]
structs.each do |struct|
members.each do |member|
func = "#{member}="
expect(struct).to respond_to func
method = struct.method(func)
expect(method.arity).to eq 1
end
end
end
end
context '#[member]=' do
it 'sets the value when given a valid symbol member' do
expect(joe[:name] = 'Jane').to eq 'Jane'
expect(subject[:name] = 'Jane').to eq 'Jane'
end
it 'sets the value when given a valid string member' do
expect(joe['name'] = 'Jane').to eq 'Jane'
expect(subject['name'] = 'Jane').to eq 'Jane'
end
it 'raises an exception when given a non-existent symbol member' do
expect{joe[:fooarbaz] = 'Jane'}.to raise_error(NameError)
expect{subject[:fooarbaz] = 'Jane'}.to raise_error(NameError)
end
it 'raises an exception when given a non-existent string member' do
expect{joe['fooarbaz'] = 'Jane'}.to raise_error(NameError)
expect{subject['fooarbaz'] = 'Jane'}.to raise_error(NameError)
end
end
context '#[index]=' do
it 'sets the value when given a valid index' do
expect(joe[0] = 'Jane').to eq 'Jane'
expect(subject[0] = 'Jane').to eq 'Jane'
end
it 'raises an exception when given an out-of-bound index' do
expect{joe[100] = 'Jane'}.to raise_error(IndexError)
expect{subject[100] = 'Jane'}.to raise_error(IndexError)
end
end
context 'synchronization' do
it 'protects #values' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject.values
end
it 'protects #values_at' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject.values_at(0)
end
it 'protects #[index]' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject[0]
end
it 'protects #[member]' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject[:name]
end
it 'protects getter methods' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject.name
end
it 'protects #[index]=' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject[0] = :foo
end
it 'protects #[member]=' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject[:name] = :foo
end
it 'protects getter methods' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject.name = :foo
end
it 'protects #to_s' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject.to_s
end
it 'protects #inspect' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject.inspect
end
it 'protects #merge' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject.merge(subject.members.first => subject.values.first)
end
it 'protects #to_h' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject.to_h
end
it 'protects #==' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject == joe
end
it 'protects #each' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject.each{|value| nil }
end
it 'protects #each_pair' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject.each_pair{|member, value| nil }
end
it 'protects #select' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject.select{|value| false }
end
it 'protects #initialize_copy' do
expect(subject).to receive(:synchronize).at_least(:once).with(no_args).and_call_original
subject.clone
end
end
context 'copy' do
context '#dup' do
it 'mutates only the copy' do
expect(subject.dup.name = 'Jane').not_to eq(subject.name)
end
end
context '#clone' do
it 'mutates only the copy' do
expect(subject.clone.name = 'Jane').not_to eq(subject.name)
end
end
end
end
end
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