anchor.diff:        ]
        },
   
  -     {"multiple cookbooks, no environment constraints, no versions",
  +     {"[environment cookbooks] multiple cookbooks, no environment constraints, no versions",
         <<"testing">>,
         0,
         [{<<"cookbook_one">>, []},
  
positive.code:                                {all, [<<"0.5.0">>]}]}]
       },
  
       {"Try different constraints (completely removing one cookbook)",
        {<<"testing">>, [{cookbook_versions, [{<<"cookbook_one">>, <<"= 6.6.6">>},
                                              {<<"cookbook_three">>, <<"= 0.5.0">>}]}]},
        [{<<"cookbook_one">>, [{0, []},
  
negative.code:                                {all, [<<"1.0.0">>, <<"0.5.0">>, <<"0.0.1">>]}]}]
       },
  
       {"[environment filtered] Add environment constraints that are functionally equivalenat to no constraints",
        {<<"testing">>, [{cookbook_versions, [{<<"cookbook_one">>, <<"> 1.0.0">>},
                                              {<<"cookbook_two">>, <<"< 1.2.3">>}]}]},
        [{<<"cookbook_one">>, [{0, []},
  