164 lines
3.5 KiB
Ruby
164 lines
3.5 KiB
Ruby
RSpec.describe Mutant::Subject::Method::Instance do
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let(:object) { described_class.new(context, node) }
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let(:context) { Mutant::Context::Scope.new(scope, double('Source Path')) }
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let(:node) do
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s(:def, :foo, s(:args))
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end
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let(:scope) do
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Class.new do
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attr_reader :bar
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def initialize
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@bar = :boo
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end
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def foo
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end
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def self.name
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'Test'
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end
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end
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end
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describe '#expression' do
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subject { object.expression }
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it { should eql(parse_expression('Test#foo')) }
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it_should_behave_like 'an idempotent method'
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end
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describe '#match_expression' do
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subject { object.match_expressions }
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it { should eql(%w[Test#foo Test*].map(&method(:parse_expression))) }
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it_should_behave_like 'an idempotent method'
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end
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describe '#prepare' do
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let(:context) do
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Mutant::Context::Scope.new(scope, double('Source Path'))
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end
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subject { object.prepare }
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it 'undefines method on scope' do
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expect { subject }.to change { scope.instance_methods.include?(:foo) }.from(true).to(false)
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end
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it_should_behave_like 'a command method'
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end
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describe '#source' do
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subject { object.source }
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it { should eql("def foo\nend") }
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end
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describe '#public?' do
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subject { object.public? }
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context 'when method is public' do
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it { should be(true) }
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end
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context 'when method is private' do
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before do
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scope.class_eval do
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private :foo
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end
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end
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it { should be(false) }
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end
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context 'when method is protected' do
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before do
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scope.class_eval do
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protected :foo
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end
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end
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it { should be(false) }
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end
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end
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end
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RSpec.describe Mutant::Subject::Method::Instance::Memoized do
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let(:object) { described_class.new(context, node) }
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let(:context) { double('Context') }
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let(:node) do
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s(:def, :foo, s(:args))
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end
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describe '#prepare' do
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let(:context) do
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Mutant::Context::Scope.new(scope, double('Source Path'))
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end
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let(:scope) do
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Class.new do
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include Memoizable
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def foo
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end
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memoize :foo
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end
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end
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subject { object.prepare }
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it 'undefines memoizer' do
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expect { subject }.to change { scope.memoized?(:foo) }.from(true).to(false)
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end
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it 'undefines method on scope' do
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expect { subject }.to change { scope.instance_methods.include?(:foo) }.from(true).to(false)
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end
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it_should_behave_like 'a command method'
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end
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describe '#mutations' do
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subject { object.mutations }
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let(:expected) do
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[
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Mutant::Mutation::Neutral.new(
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object,
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s(:begin,
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s(:def, :foo, s(:args)), s(:send, nil, :memoize, s(:args, s(:sym, :foo))))
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),
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Mutant::Mutation::Evil.new(
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object,
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s(:begin,
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s(:def, :foo, s(:args), s(:send, nil, :raise)), s(:send, nil, :memoize, s(:args, s(:sym, :foo))))
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),
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Mutant::Mutation::Evil.new(
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object,
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s(:begin,
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s(:def, :foo, s(:args), nil), s(:send, nil, :memoize, s(:args, s(:sym, :foo))))
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),
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Mutant::Mutation::Evil.new(
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object,
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s(:begin,
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s(:send, nil, :remove_method, s(:sym, :foo)), s(:send, nil, :memoize, s(:args, s(:sym, :foo))))
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)
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]
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end
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it { should eql(expected) }
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end
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describe '#source' do
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subject { object.source }
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it { should eql("def foo\nend\nmemoize(:foo)") }
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end
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end
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