anchor.diff:      { Category = null
         ResultsDir = null
         TestMetadataPath = null
  +      TestSettingsPath = null
         WorkingDir = null
         TimeOut = TimeSpan.FromMinutes 5.
         ToolPath = 
  
positive.code:     new StringBuilder()
      |> appendIfNotNull assembly "/testcontainer:"
      |> appendIfNotNull parameters.Category "/category:"
      |> appendIfNotNull testResultsFile "/resultsfile:"
      |> appendIfTrue parameters.NoIsolation "/noisolation"
      |> toText
  
negative.code:       ResultsDir : string
        /// Path to the Test Metadata file (.vdmdi)  (optional)
        TestMetadataPath : string
        /// Path to the Test Settings file (.testsettings)  (optional)
        TestSettingsPath : string
        /// Working directory (optional)
        WorkingDir : string
        /// A timeout for the test runner (optional)
  