Proposed syntax for functional tests

ScenarioNotation.groovy

class Scenario {

  @Delegate ShellEnvironment env

  def svn
  def git

  GsSvnUrl repo = sandbox.svnRepoRoot
  GsSvnUrl trunk = sandbox.trunk;
  GsSvnUrl branch = sandbox.getBranch('branch')


  @Test
  void initialImport() {

    def file = new File('file.txt')

    svn = {
      svn "checkout $trunk ."
      file.append "New line added to file $file"
      def committedRev = svn("commit -m \"$file modified\"")
      println "Committed revision $committedRev"
    }

    git = {
      git "init"
      file.append "New line added to file $file"
      def commit = git("commit -a -m\"$file modified\"")
      println "Created commit $commit"
    }
  }
}