open Alcotest
open Fixgen

let parse (s : string) =
  let lexbuf = Lexing.from_string s in
  let ast = Parser.prog Lexer.read lexbuf in
  ast


let test_parse s () =
  let ast = parse s in
  check bool "Parses" (Option.is_some ast) true


let rows_suite =
  [ "Can parse uuidv4", `Quick, test_parse "user (1): id _uuidv4"
  ; ( "Can parse multiple tables"
    , `Quick
    , test_parse "user (1): id _uuidv4\npurchases (1): id _uuidv4" )
  ; "Supports names", `Quick, test_parse "purchases (1): name _name"
  ; "Supports const", `Quick, test_parse "purchases (1): name \"hello\""
  ; "Supports ints with min/max", `Quick, test_parse "purchases (1): name _int(1,20)"
  ; ( "Supports a list of potential values"
    , `Quick
    , test_parse "purchases (1): name (\"a\",\"b\",\"c\")" )
  ; ( "Supports setting amount of fixture to generate"
    , `Quick
    , test_parse "purchases (5): name _int(1,20)" )
  ]


let relations_suite =
  [ ( "Can reference other tables"
    , `Quick
    , test_parse "user (2): id _uuidv4\npurchases (3): id _uuidv4, userid user.id" )
  ; ( "Can use ; as a separator"
    , `Quick
    , test_parse "user (2): id _uuidv4; purchases (5): id _uuidv4" )
  ; ( "Supports multiple newlines"
    , `Quick
    , test_parse "user (2): id _uuidv4\n\n\n\n\npurchases (5): id _uuidv4" )
  ]


let () = Alcotest.run "Parsing" [ "Rows", rows_suite; "Relations", relations_suite ]