1 files changed, 128 insertions, 0 deletions
diff --git a/tests/confLoader.ml b/tests/confLoader.ml
new file mode 100644
index 0000000..266ff33
--- /dev/null
+++ b/tests/confLoader.ml
@@ -0,0 +1,128 @@
+open StdLabels
+
+(** Read the configuration in toml and return the internal representation *)
+let load : string -> ImportConf.Syntax.t =
+ fun content ->
+  Otoml.Parser.from_string content |> ImportConf.t_of_toml |> Result.get_ok
+
+let conf =
+  load
+    {|version = 1
+
+[source]
+  file = "source.xlsx"
+  name = "source"
+
+[externals.other]
+  intern_key = ":A"
+  file = "other.xlsx"
+  extern_key = ":C"
+  allow_missing = false
+
+[externals.last_file]
+  intern_key = ":other.A"
+  file = "last.xlsx"
+  extern_key = ":C"
+  allow_missing = true 
+
+[sheet]
+  columns = [
+    ":A ^ '_'",
+   ":B", 
+   ":last_file.E", 
+  ]|}
+
+let external_table_source =
+  ImportDataTypes.Table.{ file = "source.xlsx"; tab = 1; name = "source" }
+
+let external_table_other =
+  ImportDataTypes.Table.{ file = "other.xlsx"; tab = 1; name = "other" }
+
+let external_other =
+  ImportConf.Syntax.
+    {
+      intern_key = Path { alias = None; column = 1 };
+      target = external_table_other;
+      extern_key = Path 3;
+      allow_missing = false;
+      match_rule = None;
+    }
+
+let external_table_last =
+  ImportDataTypes.Table.{ file = "last.xlsx"; tab = 1; name = "last_file" }
+
+let external_last =
+  ImportConf.Syntax.
+    {
+      intern_key = Path { alias = Some "other"; column = 1 };
+      target = external_table_last;
+      extern_key = Path 3;
+      allow_missing = true;
+      match_rule = None;
+    }
+
+let show_source (source : ImportDataTypes.Table.t) =
+  Printf.sprintf "%s:%d" source.ImportDataTypes.Table.file
+    source.ImportDataTypes.Table.tab
+
+(*
+ * Compare two external sources
+ *)
+
+let show_sources sources =
+  let b = Buffer.create 16 in
+  Buffer.add_string b "[";
+  List.iter sources ~f:(fun source ->
+      Buffer.add_string b (show_source source);
+      Buffer.add_string b ",");
+
+  let len = Buffer.length b in
+  if len > 1 then Buffer.truncate b (len - 1);
+  Buffer.add_string b "]";
+
+  Buffer.contents b
+
+and cmp_source : ImportDataTypes.Table.t -> ImportDataTypes.Table.t -> bool =
+ fun s1 s2 ->
+  String.equal s1.ImportDataTypes.Table.name s2.ImportDataTypes.Table.name
+  && String.equal s1.ImportDataTypes.Table.file s2.ImportDataTypes.Table.file
+  && s1.ImportDataTypes.Table.tab = s2.ImportDataTypes.Table.tab
+
+let cmp_list : ('a -> 'a -> bool) -> 'a list -> 'a list -> bool =
+ fun cmp elems1 elems2 -> List.for_all2 ~f:cmp elems1 elems2
+
+(*
+ * Compare keys in the dependencies
+ *)
+
+let key_printer : ImportAnalyser.Dependency.key -> string =
+ fun { name; expression; _ } ->
+  let path_name =
+    let buffer = Buffer.create 16 in
+    ImportExpression.Headers.headers_of_expression buffer
+      (fun col buffer ->
+        Buffer.add_string buffer (ImportCSV.Csv.column_to_string col))
+      expression;
+    Buffer.contents buffer
+  in
+  Printf.sprintf "%s, %s" name path_name
+
+and key_cmp a b =
+  0
+  = ImportExpression.T.cmp
+      (fun a b -> a - b)
+      a.ImportAnalyser.Dependency.expression
+      b.ImportAnalyser.Dependency.expression
+
+let keys_printer : ImportAnalyser.Dependency.key list -> string =
+ fun contents ->
+  let b = Buffer.create 16 in
+  List.iter contents ~f:(fun v -> Buffer.add_string b (key_printer v));
+  Buffer.contents b
+
+(*
+ * Represents externals
+ *)
+
+let pp_externals : ImportConf.Syntax.extern list -> string =
+ fun ext -> ImportConf.Syntax.toml_of_externs ext |> Otoml.Printer.to_string