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

describe "The -e command line option" do
  it "evaluates the given string" do
    ruby_exe("puts 'foo'").chomp.should == "foo"
  end

  it "joins multiple strings with newlines" do
    ruby_exe(nil, :args => %Q{-e "puts 'hello" -e "world'" 2>&1}).chomp.should == "hello\nworld"
  end

  it "uses 'main' as self" do
    ruby_exe("puts self").chomp.should == "main"
  end

  it "uses '-e' as file" do
    ruby_exe("puts __FILE__").chomp.should == "-e"
  end

  #needs to test return => LocalJumpError

  describe "with -n and a Fixnum range" do
    before :each do
      @script = "-ne 'print if %s' #{fixture(__FILE__, "conditional_range.txt")}"
    end

    it "mimics an awk conditional by comparing an inclusive-end range with $." do
      ruby_exe(nil, :args => (@script % "2..3")).should == "2\n3\n"
      ruby_exe(nil, :args => (@script % "2..2")).should == "2\n"
    end

    it "mimics a sed conditional by comparing an exclusive-end range with $." do
      ruby_exe(nil, :args => (@script % "2...3")).should == "2\n3\n"
      ruby_exe(nil, :args => (@script % "2...2")).should == "2\n3\n4\n5\n"
    end
  end
end
