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require 'spec_helper'
RSpec.describe(Regexp::Lexer) do
specify('lexer returns an array') do
expect(RL.lex('abc')).to be_instance_of(Array)
end
specify('lexer returns tokens') do
tokens = RL.lex('^abc+[^one]{2,3}\b\d\C-C$')
expect(tokens).to all(be_a Regexp::Token)
expect(tokens.map { |token| token.to_a.length }).to all(eq 8)
end
specify('lexer token count') do
tokens = RL.lex(/^(one|two){2,3}([^d\]efm-qz\,\-]*)(ghi)+$/i)
expect(tokens.length).to eq 28
end
specify('lexer scan alias') do
expect(RL.scan(/a|b|c/)).to eq RL.lex(/a|b|c/)
end
end
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