-export(
[ all/0
, groups/0
+ , init_per_group/2
+ , end_per_group/2
]).
%% Test cases
-export(
- [ t_pipe/1
+ [ t_pipe_ok/1
+ , t_pipe_error/1
+ , t_hope_result_specs/1
+ , t_lift_exn/1
+ , t_lift_map_exn/1
+ , t_return/1
+ , t_map/1
+ , t_map_error/1
+ , t_tag_error/1
]).
-define(GROUP_PIPE, result_pipe).
+-define(GROUP_SPEC, result_spec).
+-define(GROUP_LIFT, result_lift_exn).
+-define(GROUP_OTHER, result_other).
%% ============================================================================
%% ============================================================================
all() ->
- [{group, ?GROUP_PIPE}].
+ [ {group, ?GROUP_PIPE}
+ , {group, ?GROUP_SPEC}
+ , {group, ?GROUP_LIFT}
+ , {group, ?GROUP_OTHER}
+ ].
groups() ->
- Tests =
- [ t_pipe
+ PipeTests =
+ [ t_pipe_ok
+ , t_pipe_error
],
- Properties = [],
- [{?GROUP_PIPE, Properties, Tests}].
-
-
-%% =============================================================================
-%% Test cases
-%% =============================================================================
+ SpecTests =
+ [ t_hope_result_specs
+ ],
+ LiftTests =
+ [ t_lift_exn
+ , t_lift_map_exn
+ ],
+ OtherTests =
+ [ t_return
+ , t_map
+ , t_map_error
+ , t_tag_error
+ ],
+ Properties = [parallel],
+ [ {?GROUP_PIPE, Properties, PipeTests}
+ , {?GROUP_SPEC, Properties, SpecTests}
+ , {?GROUP_LIFT, Properties, LiftTests}
+ , {?GROUP_OTHER, Properties, OtherTests}
+ ].
-t_pipe(_Config) ->
+init_per_group(?GROUP_PIPE, Cfg) ->
Steps =
[ fun (0) -> {ok, 1}; (X) -> {error, X} end
, fun (1) -> {ok, 2}; (X) -> {error, X} end
, fun (2) -> {ok, 3}; (X) -> {error, X} end
],
+ hope_kv_list:set(Cfg, steps, Steps);
+init_per_group(_, Cfg) ->
+ Cfg.
+
+end_per_group(_, _Cfg) ->
+ ok.
+
+
+%% =============================================================================
+%% Test cases
+%% =============================================================================
+
+t_pipe_ok(Cfg) ->
+ {some, Steps} = hope_kv_list:get(Cfg, steps),
{ok, 3} = hope_result:pipe(Steps, 0).
+
+t_pipe_error(Cfg) ->
+ {some, Steps} = hope_kv_list:get(Cfg, steps),
+ {error, 1} = hope_result:pipe(Steps, 1).
+
+t_hope_result_specs(_) ->
+ [] = proper:check_specs(hope_result).
+
+t_lift_exn(_Cfg) ->
+ Class = throw,
+ Reason = foofoo,
+ Label = bar,
+ F = fun (ok) -> apply(erlang, Class, [Reason]) end,
+ G = hope_result:lift_exn(F),
+ H = hope_result:lift_exn(F, Label),
+ {error, {Class, Reason}} = G(ok),
+ {error, {Label, {Class, Reason}}} = H(ok).
+
+t_lift_map_exn(_Cfg) ->
+ FOk = fun ({}) -> foo end,
+ FExn = fun ({}) -> throw(baz) end,
+ MapOk = fun (foo) -> bar end,
+ MapOkThrows = fun (foo) -> throw(exn_from_ok_map) end,
+ MapError = fun ({throw, baz}) -> qux end,
+ MapErrorThrows = fun ({throw, baz}) -> throw(exn_from_error_map) end,
+ GOk = hope_result:lift_map_exn(FOk , MapOk , MapError),
+ GOkThrows = hope_result:lift_map_exn(FOk , MapOkThrows, MapError),
+ GError = hope_result:lift_map_exn(FExn, MapOk , MapError),
+ GErrorThrows = hope_result:lift_map_exn(FExn, MapOk , MapErrorThrows),
+ {ok, bar} = GOk({}),
+ {error, qux} = GError({}),
+ ok =
+ try
+ must_not_return = GOkThrows({})
+ catch throw:exn_from_ok_map ->
+ ok
+ end,
+ ok =
+ try
+ must_not_return = GErrorThrows({})
+ catch throw:exn_from_error_map ->
+ ok
+ end.
+
+t_return(_Cfg) ->
+ X = foo,
+ {ok, X} = hope_result:return(X).
+
+t_map(_Cfg) ->
+ X = foo,
+ Y = bar,
+ F = fun (foo) -> Y end,
+ {ok, Y} = hope_result:map({ok, X}, F),
+ {error, X} = hope_result:map({error, X}, F).
+
+t_map_error(_Cfg) ->
+ X = foo,
+ Y = bar,
+ XtoY = fun (foo) -> Y end,
+ {ok , X} = hope_result:map_error({ok , X}, XtoY),
+ {error, Y} = hope_result:map_error({error, X}, XtoY).
+
+t_tag_error(_Cfg) ->
+ X = foo,
+ Tag = bar,
+ {ok , X } = hope_result:tag_error({ok , X}, Tag),
+ {error, {Tag, X}} = hope_result:tag_error({error, X}, Tag).