anchor.diff:      [<InlineData("9.0.0.9")>]
       let ParseAssignVersionReturnsCorrectResult(version : string) =
           let actual = [| "-a"; version |] |> Args.Parse
  -        Assert.Equal<Arg>([Assign(Version version)], actual |> Seq.toList)
  +        verify <@ [Assign(Version version)] = (actual |> Seq.toList) @>
   
       [<Theory>]
       [<InlineData("major",    "1", Rank.Major,    1)>]
  
positive.code: open Xunit.Extensions
  
  module ArgsTests =
      [<Theory>]
      [<InlineData("0.5")>]
      [<InlineData("3.1")>]    
  
negative.code:     [<InlineData("revision", "0", Rank.Revision, 0)>]
      let ParseAssignVersionPartReturnsCorrectResult(rank : string, rankValue : string, expectedRank : Rank, expectedRankValue : int) =
          let actual = [| "-a"; rank; rankValue |] |> Args.Parse
          verify <@ [AssignRank(expectedRank, expectedRankValue)] = (actual |> Seq.toList) @>
  
      [<Theory>]
      [<InlineData("major",    Rank.Major)>]
  