-module(hope_list_SUITE).
+-include_lib("proper/include/proper.hrl").
+
%% Callbacks
-export(
[ all/0
%% Test cases
-export(
[ t_unique_preserve_order/1
+ , t_hope_list_specs/1
]).
-define(GROUP , hope_list).
+-define(PROPTEST(A), true = proper:quickcheck(A())).
+
%% ============================================================================
%% Common Test callbacks
groups() ->
Tests =
[ t_unique_preserve_order
+ , t_hope_list_specs
],
- Properties = [],
+ Properties = [parallel],
[{?GROUP, Properties, Tests}].
%% =============================================================================
t_unique_preserve_order(_Cfg) ->
- ListAGiven = [a, a, g, b, f, c, a, d, a, e, f, d],
- ListBGiven = "australia",
- ListAExpected = [a, g, b, f, c, d, e],
- ListBExpected = "austrli",
- ListAComputed = hope_list:unique_preserve_order(ListAGiven),
- ListBComputed = hope_list:unique_preserve_order(ListBGiven),
- ListAComputed = ListAExpected,
- ListBComputed = ListBExpected.
+ ?PROPTEST(prop_unique_preserve_order).
+
+prop_unique_preserve_order() ->
+ ?FORALL(L, list(),
+ begin
+ Duplicates = L -- lists:usort(L),
+ hope_list:unique_preserve_order(L) ==
+ lists:reverse(lists:reverse(L) -- Duplicates)
+ end).
+
+t_hope_list_specs(_) ->
+ [] = proper:check_specs(hope_list).