56 lines
1.2 KiB
Ruby
56 lines
1.2 KiB
Ruby
# encoding: UTF-8
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RSpec.shared_examples_for 'a mutator' do
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subject { object.each(node, &yields.method(:<<)) }
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let(:yields) { [] }
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let(:object) { described_class }
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unless instance_methods.include?(:node)
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let(:node) { parse(source) }
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end
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it_should_behave_like 'a command method'
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context 'with no block' do
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subject { object.each(node) }
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it { should be_instance_of(to_enum.class) }
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def coerce(input)
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case input
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when String
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Parser::CurrentRuby.parse(input)
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when Parser::AST::Node
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input
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else
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raise
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end
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end
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def normalize(node)
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Unparser::Preprocessor.run(node)
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end
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let(:expected_mutations) do
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mutations.map(&method(:coerce)).map(&method(:normalize))
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end
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it 'generates the expected mutations' do
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generated_mutations = subject.map(&method(:normalize))
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verifier = MutationVerifier.new(node, expected_mutations, generated_mutations)
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unless verifier.success?
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fail verifier.error_report
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end
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end
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end
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end
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RSpec.shared_examples_for 'a noop mutator' do
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let(:mutations) { [] }
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it_should_behave_like 'a mutator'
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end
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