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open Rnt
module Make (S : Abstract.Storage.STORAGE) (C : Helpers.Storage.CONFIGURATOR) = struct
open Alcotest
module H = Helpers.Storage.Make (S) (C)
module SR = Rnt.Kernel.SubstantialRelation.Make (S)
let alaric =
{ Concepts.Tuple.type_= "employee";
attributes=
BatMap.String.empty
|> BatMap.String.add "name" (Concepts.Value.String "Alaric")
|> BatMap.String.add "age" (Concepts.Value.Integer 42) }
let contains relation tuple =
let open Utilities.Result in
let* relation = Protocols.Relation.require relation in
Protocols.Relation.contains relation tuple
let enumerate relation =
let open Utilities.Result in
let* enumerated =
Protocols.Enumerable.scan relation (fun scan -> Protocols.Cursor.drain scan ())
in
Ok (BatFingerTree.to_list enumerated)
let contain_and_enumerate conn =
let absent, present, enumerated =
begin
let open Utilities.Result in
let* schematics =
H.SI.with_transaction conn (fun tx -> H.store_schema tx ["name"; "age"])
in
let* empty = SR.instantiate conn ~schematics in
let* absent = contains empty alaric in
let* holding = H.relation conn ["name"; "age"] [alaric] in
let* present = contains holding alaric in
let* enumerated = enumerate holding in
Ok (absent, present, enumerated)
end
|> Helpers.condition_as_failure
in
check bool "absent from an empty relation" false absent;
check bool "present in a relation holding it" true present;
check int "one tuple enumerated" 1 (List.length enumerated);
check bool "the tuple that was asserted" true
(List.for_all
(fun tuple ->
Concepts.Hash.hash_equals (Concepts.Tuple.hash tuple) (Concepts.Tuple.hash alaric) )
enumerated )
let suite =
( "kernel/substantial-relation",
[ test_case "contain-and-enumerate" `Quick
(H.with_connection contain_and_enumerate "substantial-relation-test") ] )
end
module LMDB = Make (Rnt.Backend.Storage.LMDB) (Helpers.Storage.LMDB_Configurator)
let suites () = [LMDB.suite]
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