Move storage-related helpers to `Helpers`

1 files changed, 25 insertions, 0 deletions

diff --git a/test/Helpers.ml b/test/Helpers.ml
index bf34b82..784170c 100644
--- a/test/Helpers.ml
+++ b/test/Helpers.ml
@@ -17,3 +17,28 @@ let condition_as_failure = function
 
 let pp_value ppf v = Format.pp_print_string ppf (Concepts.Value.to_string v)
 let value = Alcotest.testable pp_value Concepts.Value.equal
+
+module Storage = struct
+  module type CONFIGURATOR = sig
+    val configure : string -> Rnt.Concepts.Configuration.term
+  end
+
+  module LMDB_Configurator : CONFIGURATOR = struct
+    let configure base =
+      let open Sexplib.Sexp in
+      List [Atom "lmdb"; List [Atom "path"; Atom base]; List [Atom "mode"; Atom "420"]]
+      |> Rnt.Concepts.Configuration.term_of_sexp
+  end
+
+  module Make (S : Abstract.Storage.STORAGE) (C : CONFIGURATOR) = struct
+    let with_connection f dir () =
+      with_temporary_directory dir begin fun dir ->
+        begin
+          let open Utilities.Result in
+          let* conn = S.connect (C.configure dir) in
+          Ok (f conn)
+        end
+        |> condition_as_failure
+        end
+  end
+end