anchor.diff:  group Foo
   source http://www.nuget.org/api/v2
   
  -nuget A 1.0
  -nuget C 1.0"""
  +nuget A
  +nuget C"""
   
           depFile.ToString()
           |> shouldEqual (normalizeLineEndings expected)
  
positive.code: let depFile3 = """
  source http://www.nuget.org/api/v2
  
  nuget A 1.0
  nuget B 1.0
  nuget C 1.0
  nuget D 1.0
  nuget E 1.0
  nuget F 1.0
  
  group Deps2
  source http://www.nuget.org/api/v2
  
  nuget A 1.0
  nuget B 1.0
  nuget C 1.0
  nuget D 1.0
  nuget E 1.0
  nuget F 1.0""" |> DependenciesFile.FromSource
  
  let projects3 = [
      ReferencesFile.FromLines [|"A";"B";"C";"D";"F"|]
  
negative.code: let depFile2 = """
  source http://www.nuget.org/api/v2
  
  nuget A
  nuget B
  nuget C
  nuget D
  nuget E
  nuget F """ |> DependenciesFile.FromSource
  
  let projects2 = [
      ReferencesFile.FromLines [|"A";"B";"C";"D";"F"|]
  