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Contents
open Core
open OUnit2
open Dominoes
let print_dominoe (d1, d2) = sprintf "(%d,%d)" d1 d2
let dominoes_printer xs = "[" ^ String.concat ~sep:";" (List.map xs ~f:print_dominoe) ^ "]"
let option_printer = function
| None -> "None"
| Some xs -> "Some " ^ dominoes_printer xs
let rotate_1 xs = List.tl_exn xs @ [List.hd_exn xs]
let norm l =
let norm1 (x, y) = if x > y then (y, x) else (x, y) in
List.map ~f:norm1 l |> List.sort ~cmp:compare
let check_chain (input: dominoe list) (chained: dominoe list) =
assert_equal (norm input) (norm chained) ~printer:dominoes_printer ~msg:"chain doesn't use the same dominoes as the input";
let assert_dominoes_match d1 d2 =
if snd d1 <> fst d2 then failwith @@ sprintf "%s and %s cannot be chained together" (print_dominoe d1) (print_dominoe d2) else () in
let consecutives = List.zip_exn chained (rotate_1 chained) in
List.iter consecutives ~f:(fun (d1, d2) -> assert_dominoes_match d1 d2)
let assert_empty c = if List.is_empty c then () else failwith "Expected 0 length chain"
let assert_valid_chain input _ctxt =
match chain input with
| None -> failwith "Expecting a chain"
| Some(c) -> (if List.is_empty input then assert_empty else check_chain input) c
let assert_no_chain input _ctxt =
assert_equal None (chain input) ~printer:option_printer
let assert_chain input hasChain =
if hasChain then assert_valid_chain input else assert_no_chain input
let tests = [
(* TEST
"$description" >::
assert_chain $input $expected;
END TEST *)
]
let () =
run_test_tt_main ("dominoes tests" >::: tests)
Version data entries
149 entries across 149 versions & 1 rubygems