require 'spec_helper'

describe RobotVim::ScriptFile do
  describe "when creating a script file from a string" do
    let(:commands_string){"some string of vim commands"}
    let(:expected_file_name){"some_file_name"}

    before do
      RobotVim::FileNameGenerator.stub(:generate).and_return(expected_file_name)
    end

    it "yields the path of the script file" do
      file = stub("file").as_null_object
      File.stub(:new).and_return(file)

      RobotVim::ScriptFile.open(commands_string) do |file_path|
        file_path.should == expected_file_name
      end
    end

    it "writes the commands out to the script file" do
      RobotVim::ScriptFile.open(commands_string) do |file_path|
        File.read(file_path).should == commands_string
      end
    end

    it "deletes the file after we are done using it" do
      RobotVim::ScriptFile.open(commands_string) do |file_path|
      end
      File.exists?(expected_file_name).should be_false
    end

  end
end