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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
describe "MatchData#pre_match" do
it "returns the string before the match, equiv. special var $`" do
/(.)(.)(\d+)(\d)/.match("THX1138: The Movie").pre_match.should == 'T'
$`.should == 'T'
end
ruby_version_is ''...'2.7' do
it "keeps taint status from the source string" do
str = "THX1138: The Movie"
str.taint
res = /(.)(.)(\d+)(\d)/.match(str).pre_match
res.tainted?.should be_true
$`.tainted?.should be_true
end
it "keeps untrusted status from the source string" do
str = "THX1138: The Movie"
str.untrust
res = /(.)(.)(\d+)(\d)/.match(str).pre_match
res.untrusted?.should be_true
$`.untrusted?.should be_true
end
end
it "sets the encoding to the encoding of the source String" do
str = "abc".force_encoding Encoding::EUC_JP
str.match(/b/).pre_match.encoding.should equal(Encoding::EUC_JP)
end
it "sets an empty result to the encoding of the source String" do
str = "abc".force_encoding Encoding::ISO_8859_1
str.match(/a/).pre_match.encoding.should equal(Encoding::ISO_8859_1)
end
ruby_version_is "3.0" do
it "returns an instance of String when given a String subclass" do
str = MatchDataSpecs::MyString.new("THX1138: The Movie")
/(.)(.)(\d+)(\d)/.match(str).pre_match.should be_an_instance_of(String)
end
end
end
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