anchor.diff:              Run = []
               ListTests = false
               Summary = true
  +            CustomArgs = []
               WorkingDirectory = ""
           }
   
  
positive.code:         failedAssemblies
          |> List.map (fun (testAssembly,exitCode) -> sprintf "Expecto test of assembly '%s' failed. Process finished with exit code %d." testAssembly exitCode)
          |> String.concat System.Environment.NewLine
          |> FailedTestsException |> raise
negative.code:       Run : string list
        /// Doesn't run tests, print out list of tests instead.
        ListTests : bool
        /// Custom arguments to use in the case the helper not yet supports them
        CustomArgs: string list
        /// Working directory
        WorkingDirectory : string
      }
  
      override this.ToString() =
          let append (s: string) (sb: StringBuilder) = sb.Append s
          let appendIfTrue p s sb =
  