require_relative '../../spec_helper' require 'strscan' describe "StringScanner#scan_until" do before :each do @s = StringScanner.new("This is a test") end it "returns the substring up to and including the end of the match" do @s.scan_until(/a/).should == "This is a" @s.pre_match.should == "This is " @s.post_match.should == " test" end it "returns nil if there's no match" do @s.scan_until(/\d/).should == nil end it "can match anchors properly" do @s.scan(/T/) @s.scan_until(/^h/).should == "h" end end