60 lines
1.4 KiB
Ruby
60 lines
1.4 KiB
Ruby
require 'spec_helper'
|
|
|
|
describe Mutant::Matcher::Chain do
|
|
|
|
let(:object) { described_class.new(matchers) }
|
|
|
|
describe '#each' do
|
|
subject { object.each { |entry| yields << entry } }
|
|
|
|
let(:matchers) { [matcher_a, matcher_b] }
|
|
|
|
let(:matcher_a) { [subject_a] }
|
|
let(:matcher_b) { [subject_b] }
|
|
|
|
let(:subject_a) { double('Subject A') }
|
|
let(:subject_b) { double('Subject B') }
|
|
|
|
# it_should_behave_like 'an #each method'
|
|
context 'with no block' do
|
|
subject { object.each }
|
|
|
|
it { should be_instance_of(to_enum.class) }
|
|
|
|
it 'yields the expected values' do
|
|
expect(subject.to_a).to eql(object.to_a)
|
|
end
|
|
end
|
|
|
|
let(:yields) { [] }
|
|
|
|
it 'should yield subjects' do
|
|
expect { subject }.to change { yields }.from([]).to([subject_a, subject_b])
|
|
end
|
|
end
|
|
|
|
describe '#matchers' do
|
|
subject { object.matchers }
|
|
|
|
let(:matchers) { double('Matchers') }
|
|
|
|
it { should be(matchers) }
|
|
|
|
it_should_behave_like 'an idempotent method'
|
|
end
|
|
|
|
describe '.build' do
|
|
subject { described_class.build(matchers) }
|
|
|
|
context 'when one matcher given' do
|
|
let(:matchers) { [double('Matcher A')] }
|
|
it { should be(matchers.first) }
|
|
end
|
|
|
|
context 'when matchers given' do
|
|
let(:matchers) { [double('Matcher A'), double('Matcher B')] }
|
|
it { should eql(described_class.new(matchers)) }
|
|
end
|
|
end
|
|
|
|
end
|