free_mutant/spec/unit/mutant/matcher/methods/instance_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

59 lines
1.2 KiB
Ruby

RSpec.describe Mutant::Matcher::Methods::Instance, '#call' do
let(:object) { described_class.new(class_under_test) }
let(:env) { Fixtures::TEST_ENV }
let(:class_under_test) do
parent = Module.new do
def method_d
end
def method_e
end
end
Class.new do
include parent
private :method_d
public
def method_a
end
protected
def method_b
end
private
def method_c
end
end
end
let(:subject_a) { instance_double(Mutant::Subject) }
let(:subject_b) { instance_double(Mutant::Subject) }
let(:subject_c) { instance_double(Mutant::Subject) }
let(:subjects) { [subject_a, subject_b, subject_c] }
before do
{
method_a: subject_a,
method_b: subject_b,
method_c: subject_c
}.each do |method, subject|
matcher = instance_double(Mutant::Matcher)
expect(matcher).to receive(:call).with(env).and_return([subject])
expect(Mutant::Matcher::Method::Instance).to receive(:new)
.with(class_under_test, class_under_test.instance_method(method))
.and_return(matcher)
end
end
it 'returns expected subjects' do
expect(object.call(env)).to eql(subjects)
end
end