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

describe "Regexp#to_s" do
  not_supported_on :opal do
    it "displays options if included" do
      /abc/mxi.to_s.should == "(?mix:abc)"
    end
  end

  it "shows non-included options after a - sign" do
    /abc/i.to_s.should == "(?i-mx:abc)"
  end

  it "shows all options as excluded if none are selected" do
    /abc/.to_s.should == "(?-mix:abc)"
  end

  it "shows the pattern after the options" do
    not_supported_on :opal do
      /ab+c/mix.to_s.should == "(?mix:ab+c)"
    end
    /xyz/.to_s.should == "(?-mix:xyz)"
  end

  not_supported_on :opal do
    it "displays groups with options" do
      /(?ix:foo)(?m:bar)/.to_s.should == "(?-mix:(?ix:foo)(?m:bar))"
      /(?ix:foo)bar/m.to_s.should == "(?m-ix:(?ix:foo)bar)"
    end

    it "displays single group with same options as main regex as the main regex" do
      /(?i:nothing outside this group)/.to_s.should == "(?i-mx:nothing outside this group)"
    end
  end

  not_supported_on :opal do
    it "deals properly with uncaptured groups" do
      /whatever(?:0d)/ix.to_s.should == "(?ix-m:whatever(?:0d))"
    end
  end

  it "deals properly with the two types of lookahead groups" do
    /(?=5)/.to_s.should == "(?-mix:(?=5))"
    /(?!5)/.to_s.should == "(?-mix:(?!5))"
  end

  it "returns a string in (?xxx:yyy) notation" do
    not_supported_on :opal do
      /ab+c/ix.to_s.should == "(?ix-m:ab+c)"
      /jis/s.to_s.should == "(?-mix:jis)"
      /(?i:.)/.to_s.should == "(?i-mx:.)"
    end
    /(?:.)/.to_s.should == "(?-mix:.)"
  end

  not_supported_on :opal do
    it "handles abusive option groups" do
      /(?mmmmix-miiiix:)/.to_s.should == '(?-mix:)'
    end
  end

end