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require 'spec_helper'
RSpec.describe(Regexp::Parser) do
specify('parse returns a root expression') do
expect(RP.parse('abc')).to be_instance_of(Root)
end
specify('parse can be called with block') do
expect(RP.parse('abc') { |root| root.class }).to eq Root
end
specify('parse root contains expressions') do
root = RP.parse(/^a.c+[^one]{2,3}\b\d\\\C-C$/)
expect(root.expressions).to all(be_a Regexp::Expression::Base)
end
specify('parse root options mi') do
root = RP.parse(/[abc]/mi)
expect(root.m?).to be true
expect(root.i?).to be true
expect(root.x?).to be false
end
specify('parse no quantifier target raises error') do
expect { RP.parse('?abc') }.to raise_error(Regexp::Parser::Error)
end
specify('parse sequence no quantifier target raises error') do
expect { RP.parse('abc|?def') }.to raise_error(Regexp::Parser::Error)
end
end
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