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require 'spec_helper'
RSpec.describe('Expression::Base#clone') do
specify('Base#clone') do
root = RP.parse(/^(?i:a)b+$/i)
copy = root.clone
expect(copy.to_s).to eq root.to_s
expect(root.object_id).not_to eq copy.object_id
expect(root.text).to eq copy.text
expect(root.text.object_id).not_to eq copy.text.object_id
root_1 = root[1]
copy_1 = copy[1]
expect(root_1.options).to eq copy_1.options
expect(root_1.options.object_id).not_to eq copy_1.options.object_id
root_2 = root[2]
copy_2 = copy[2]
expect(root_2).to be_quantified
expect(copy_2).to be_quantified
expect(root_2.quantifier.text).to eq copy_2.quantifier.text
expect(root_2.quantifier.text.object_id).not_to eq copy_2.quantifier.text.object_id
expect(root_2.quantifier.object_id).not_to eq copy_2.quantifier.object_id
# regression test
expect { root_2.clone }.not_to(change { root_2.quantifier.object_id })
expect { root_2.clone }.not_to(change { root_2.quantifier.text.object_id })
end
specify('Subexpression#clone') do
root = RP.parse(/^a(b([cde])f)g$/)
copy = root.clone
expect(copy.to_s).to eq root.to_s
expect(root).to respond_to(:expressions)
expect(copy).to respond_to(:expressions)
expect(root.expressions.object_id).not_to eq copy.expressions.object_id
copy.expressions.each_with_index do |exp, index|
expect(root[index].object_id).not_to eq exp.object_id
end
copy[2].each_with_index do |exp, index|
expect(root[2][index].object_id).not_to eq exp.object_id
end
# regression test
expect { root.clone }.not_to(change { root.expressions.object_id })
end
specify('Group::Named#clone') do
root = RP.parse('^(?<somename>a)+bc$')
copy = root.clone
expect(copy.to_s).to eq root.to_s
root_1 = root[1]
copy_1 = copy[1]
expect(root_1.name).to eq copy_1.name
expect(root_1.name.object_id).not_to eq copy_1.name.object_id
expect(root_1.text).to eq copy_1.text
expect(root_1.expressions.object_id).not_to eq copy_1.expressions.object_id
copy_1.expressions.each_with_index do |exp, index|
expect(root_1[index].object_id).not_to eq exp.object_id
end
# regression test
expect { root_1.clone }.not_to(change { root_1.name.object_id })
end
specify('Group::Options#clone') do
root = RP.parse('foo(?i)bar')
copy = root.clone
expect(copy.to_s).to eq root.to_s
root_1 = root[1]
copy_1 = copy[1]
expect(root_1.option_changes).to eq copy_1.option_changes
expect(root_1.option_changes.object_id).not_to eq copy_1.option_changes.object_id
# regression test
expect { root_1.clone }.not_to(change { root_1.option_changes.object_id })
end
specify('Backreference::Base#clone') do
root = RP.parse('(foo)\1')
copy = root.clone
expect(copy.to_s).to eq root.to_s
root_1 = root[1]
copy_1 = copy[1]
expect(root_1.referenced_expression).to eq copy_1.referenced_expression
expect(root_1.referenced_expression.to_s).to eq copy_1.referenced_expression.to_s
expect(root_1.referenced_expression.object_id).not_to eq copy_1.referenced_expression.object_id
# regression test
expect { root_1.clone }.not_to(change { root_1.referenced_expression.object_id })
end
specify('Sequence#clone') do
root = RP.parse(/(a|b)/)
copy = root.clone
# regression test
expect(copy.to_s).to eq root.to_s
root_seq_op = root[0][0]
copy_seq_op = copy[0][0]
root_seq_1 = root[0][0][0]
copy_seq_1 = copy[0][0][0]
expect(root_seq_op.object_id).not_to eq copy_seq_op.object_id
expect(root_seq_1.object_id).not_to eq copy_seq_1.object_id
copy_seq_1.expressions.each_with_index do |exp, index|
expect(root_seq_1[index].object_id).not_to eq exp.object_id
end
end
describe('Base#unquantified_clone') do
it 'produces a clone' do
root = RP.parse(/^a(b([cde])f)g$/)
copy = root.unquantified_clone
expect(copy.to_s).to eq root.to_s
expect(copy.object_id).not_to eq root.object_id
end
it 'does not carry over the callee quantifier' do
expect(RP.parse(/a{3}/)[0]).to be_quantified
expect(RP.parse(/a{3}/)[0].unquantified_clone).not_to be_quantified
expect(RP.parse(/[a]{3}/)[0]).to be_quantified
expect(RP.parse(/[a]{3}/)[0].unquantified_clone).not_to be_quantified
expect(RP.parse(/(a|b){3}/)[0]).to be_quantified
expect(RP.parse(/(a|b){3}/)[0].unquantified_clone).not_to be_quantified
end
it 'keeps quantifiers of callee children' do
expect(RP.parse(/(a{3}){3}/)[0][0]).to be_quantified
expect(RP.parse(/(a{3}){3}/)[0].unquantified_clone[0]).to be_quantified
end
end
end
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