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ruby--ruby/spec/ruby/core/matchdata/match_spec.rb

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Ruby

# -*- encoding: utf-8 -*-
require_relative '../../spec_helper'
ruby_version_is "3.1" do
describe "MatchData#match" do
it "returns the corresponding match when given an Integer" do
md = /(.)(.)(\d+)(\d)/.match("THX1138.")
md.match(0).should == 'HX1138'
md.match(1).should == 'H'
md.match(2).should == 'X'
md.match(3).should == '113'
md.match(4).should == '8'
end
it "returns nil on non-matching index matches" do
md = /\d+(\w)?/.match("THX1138.")
md.match(1).should == nil
end
it "returns the corresponding named match when given a Symbol" do
md = 'haystack'.match(/(?<t>t(?<a>ack))/)
md.match(:a).should == 'ack'
md.match(:t).should == 'tack'
end
it "returns nil on non-matching index matches" do
md = 'haystack'.match(/(?<t>t)(?<a>all)?/)
md.match(:t).should == 't'
md.match(:a).should == nil
end
end
end