97a75dd062
This is a reaction to the to_source rewrite * Do not use 1.8 specific nodes anymore * Do not generate AST nodes that would not be generatable from source
64 lines
1.7 KiB
Ruby
64 lines
1.7 KiB
Ruby
shared_examples_for 'a mutator' do
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subject { object.each(node) { |item| yields << item } }
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let(:yields) { [] }
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let(:object) { described_class }
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unless instance_methods.map(&:to_s).include?('node')
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let(:node) { source.to_ast }
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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 assert_transitive(ast)
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generated = ToSource.to_source(ast)
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parsed = generated.to_ast
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again = ToSource.to_source(parsed)
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unless generated == again
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fail "Untransitive:\n%s\n---\n%s" % [generated, again]
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end
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end
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unless instance_methods.include?(:expected_mutations)
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let(:expected_mutations) do
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mutations.map do |mutation|
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case mutation
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when String
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ast = mutation.to_ast
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assert_transitive(ast)
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ast
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when Rubinius::AST::Node
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assert_transitive(mutation)
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mutation
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else
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raise
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end
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end.map do |node|
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ToSource.to_source(node)
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end.to_set
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end
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end
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it 'generates the expected mutations' do
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generated = self.subject.map { |mutation| ToSource.to_source(mutation) }.to_set
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missing = (expected_mutations - generated).to_a
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unexpected = (generated - expected_mutations).to_a
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unless generated == expected_mutations
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fail "Missing mutations:\n%s\nUnexpected mutations:\n%s" % [missing.join("\n----\n"), unexpected.join("\n----\n")]
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end
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end
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end
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end
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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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