free_mutant/spec/unit/mutant/matcher/chain_spec.rb
Markus Schirp 8233c5871f Reduce matcher interface
* New primary interface #call makes specs and implementations much
  easier
* We had #each mostly for historical reasons that are not relevant
  anymore
* Mutation covers the Mutant::Matcher namespace
2015-10-28 20:13:00 +00:00

24 lines
763 B
Ruby

RSpec.describe Mutant::Matcher::Chain, '#call' do
subject { object.call(env) }
let(:object) { described_class.new([matcher_a, matcher_b]) }
let(:env) { instance_double(Mutant::Env) }
let(:matcher_a) { instance_double(Mutant::Matcher) }
let(:matcher_b) { instance_double(Mutant::Matcher) }
let(:subject_a) { instance_double(Mutant::Subject) }
let(:subject_b) { instance_double(Mutant::Subject) }
before do
expect(matcher_a).to receive(:call)
.with(env)
.and_return([subject_a])
expect(matcher_b).to receive(:call)
.with(env)
.and_return([subject_b])
end
it 'returns concatenated matches' do
should eql([subject_a, subject_b])
end
end