73 lines
1.5 KiB
Ruby
73 lines
1.5 KiB
Ruby
RSpec.describe Mutant::Subject do
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let(:class_under_test) do
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Class.new(described_class) do
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def expression
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Mutant::Expression.parse('Test')
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end
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end
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end
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let(:object) { class_under_test.new(config, context, node) }
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let(:config) { Mutant::Config::DEFAULT }
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let(:node) do
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double('Node', location: location)
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end
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let(:location) do
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double('Location', expression: expression)
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end
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let(:expression) do
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double('Expression', line: 'source_line')
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end
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let(:context) do
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double(
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'Context',
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source_path: 'source_path',
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source_line: 'source_line'
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)
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end
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describe '#identification' do
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subject { object.identification }
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it { should eql('Test:source_path:source_line') }
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end
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describe '#prepare' do
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subject { object.prepare }
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it_should_behave_like 'a command method'
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end
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describe '#node' do
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subject { object.node }
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it { should be(node) }
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it_should_behave_like 'an idempotent method'
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end
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describe '#mutations' do
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subject { object.mutations }
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before do
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expect(Mutant::Mutator).to receive(:each).with(node).and_yield(mutation_a).and_yield(mutation_b)
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end
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let(:mutation_a) { double('Mutation A') }
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let(:mutation_b) { double('Mutation B') }
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it 'generates neutral and evil mutations' do
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should eql([
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Mutant::Mutation::Neutral.new(object, node),
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Mutant::Mutation::Evil.new(object, mutation_a),
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Mutant::Mutation::Evil.new(object, mutation_b)
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])
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end
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end
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end
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