anchor.diff:          it "Is a failure" <| fun () ->
               let r = TestReport()
               r.reportFailure()
  -            assertFalse(r.success())
  +            r.success() |> should equal false
   
   describe "Assertion helpers" <| fun() ->
       describe "equals" <| fun() ->
  
positive.code: module Main
  open FSpec
  open Expectations
  
  let assertFalse value =
    if value then
      failwithf "Value was true"
  
  let assertMatches actual pattern =
      let regex = System.Text.RegularExpressions.Regex pattern
  
negative.code:             with
                  | _ -> 
                      thrown <- true
              thrown.should equal false
          it "fails when no exception is thrown" <| fun() ->
              let mutable thrown = false
              let f = fun () -> ()
  