anchor.diff:  let expecto =
   
     let testArgs i o = Expect.equal (Args.parseOptions options i) o "testArgs"
  -  
  +
     testList "expecto" [
       testList "Setup & teardown 2" [
         // just demoing how you can use a higher-order function as setup/teardown
  
positive.code:       }
        testAsync "int error" {
            testArgs [|"--fscheck-end-size";"1.2"|]
              (Result.Error ["--fscheck-end-size cannot parse parameter '1.2'"])
        }
        testAsync "float" {
            testArgs [|"--stress-memory-limit";"3"|]
  
negative.code:       }
        testAsync "float error" {
            testArgs [|"--stress-memory-limit";"3sd"|]
              (Result.Error ["--stress-memory-limit Cannot parse parameter '3sd'"])
        }
        testAsync "missing string" {
          testArgs [|"--log-name";"--sequenced"|]
  