free_mutant/spec/unit/mutant/matcher/namespace_spec.rb
Markus Schirp 6df5811a87 Use RSpec as receiver for rspec DSL methods
* I dislike the global infection RSpec does. This commit is a first step
  to get a rid of it.
* Also remove the need for `require 'spec_helper` in each spec file with
  adjusting `.rspec`.
2014-08-10 21:04:07 +00:00

44 lines
1.7 KiB
Ruby

RSpec.describe Mutant::Matcher::Namespace do
let(:object) { described_class.new(env, Mutant::Expression.parse('TestApp*')) }
let(:yields) { [] }
let(:env) { double('Env') }
subject { object.each { |item| yields << item } }
describe '#each' do
let(:singleton_a) { double('SingletonA', name: 'TestApp::Literal') }
let(:singleton_b) { double('SingletonB', name: 'TestApp::Foo') }
let(:singleton_c) { double('SingletonC', name: 'TestAppOther') }
let(:subject_a) { double('SubjectA') }
let(:subject_b) { double('SubjectB') }
before do
allow(Mutant::Matcher::Methods::Singleton).to receive(:new).with(env, singleton_b).and_return([subject_b])
allow(Mutant::Matcher::Methods::Instance).to receive(:new).with(env, singleton_b).and_return([])
allow(Mutant::Matcher::Methods::Singleton).to receive(:new).with(env, singleton_a).and_return([subject_a])
allow(Mutant::Matcher::Methods::Instance).to receive(:new).with(env, singleton_a).and_return([])
allow(env).to receive(:matchable_scopes).and_return(
[singleton_a, singleton_b, singleton_c].map do |scope|
Mutant::Matcher::Scope.new(env, scope, Mutant::Expression.parse(scope.name))
end
)
end
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
it 'should yield subjects' do
expect { subject }.to change { yields }.from([]).to([subject_a, subject_b])
end
end
end