anchor.diff:          testList "infinity testing" [
             testCase "is not an infinity" <| fun _ ->
               Expect.isNotInfinity 4.0 "should pass because it's not an negative infinity nor positive"
  -          
  +
             testCase "is a negative infinity" (fun _ ->
               Expect.isNotInfinity Double.NegativeInfinity "should fail because it's negative infinity"
              ) |> assertTestFails
  
positive.code:       testList "string isnotwhitespace" [
          testCase "when string is not whitespace" <| fun _ ->
            Expect.isNotEmpty "  dede  " "should pass because string is not whitespace"
          
          testCase "when string is empty" (fun _ ->
            Expect.isNotEmpty "" "should fail because string is empty"
          ) |> assertTestFails
  
negative.code:       testList "string isnotempty" [
          testCase "when string is not empty" <| fun _ ->
            Expect.isNotEmpty "dede" "should pass because string is not empty"
  
          testCase "when string is empty" (fun _ ->
            Expect.isNotEmpty "" "should fail because string is empty"
          ) |> assertTestFails
  