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ruby--ruby/spec/rubyspec/library/stringscanner/scan_until_spec.rb
eregon 95e8c48dd3 Add in-tree mspec and ruby/spec
* For easier modifications of ruby/spec by MRI developers.
* .gitignore: track changes under spec.
* spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec.
  These files can therefore be updated like any other file in MRI.
  Instructions are provided in spec/README.
  [Feature #13156] [ruby-core:79246]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2017-05-07 12:04:49 +00:00

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Ruby

require File.expand_path('../../../spec_helper', __FILE__)
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