anchor.diff:        /// state by default.
         parallel : bool
         /// Whether to make the test runner fail if focused tests exist.
  -      /// This can be used from CI servers to ensure no focused tests are commited and therefor all tests are run.
  +      /// This can be used from CI servers to ensure no focused tests are
  +      /// commited and therefor all tests are run.
         failOnFocusedTests : bool
         /// An optional filter function. Useful if you only would
         /// like to run a subset of all the tests defined in your assembly.
  
positive.code:         | [||] -> ""
          | xs -> xs.Last()
  
  
        let reduceKnown : CLIArguments -> (_ -> ExpectoConfig) =
          function
          | Sequenced -> fun o -> { o with ExpectoConfig.parallel = false }
  
negative.code:       | None -> TestList ([], Normal)
      let config, isList = args |> ExpectoConfig.fillFromArgs config
      let tests = tests |> config.filter
      if isList then
        listTests tests
        0
      else
        runTests config tests