Define and implement a generic monad behavior.

[hope.git] / test / hope_result_SUITE.erl

diff --git a/test/hope_result_SUITE.erl b/test/hope_result_SUITE.erl
index 618713d..9e60e85 100644 (file)
--- a/test/hope_result_SUITE.erl
+++ b/test/hope_result_SUITE.erl
@@ -1,18 +1,31 @@
 -module(hope_result_SUITE).
 
+%% TODO: Import only what is used.
+-include_lib("proper/include/proper.hrl").
+
 %% Callbacks
 -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_return/1
+    , t_map/1
     ]).
 
 
 -define(GROUP_PIPE, result_pipe).
+-define(GROUP_SPEC, result_spec).
+-define(GROUP_LIFT, result_lift_exn).
+-define(GROUP_OTHER, result_other).
 
 
 %% ============================================================================
@@ -20,26 +33,80 @@
 %% ============================================================================
 
 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
+        ],
+    SpecTests =
+        [ t_hope_result_specs
+        ],
+    LiftTests =
+        [ t_lift_exn
+        ],
+    OtherTests =
+        [ t_return
+        , t_map
         ],
-    Properties = [],
-    [{?GROUP_PIPE, Properties, Tests}].
+    Properties = [parallel],
+    [ {?GROUP_PIPE, Properties, PipeTests}
+    , {?GROUP_SPEC, Properties, SpecTests}
+    , {?GROUP_LIFT, Properties, LiftTests}
+    , {?GROUP_OTHER, Properties, OtherTests}
+    ].
+
+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(_Config) ->
-    A = foo,
-    Z = qux,
-    Steps =
-        [ fun (foo) -> {ok, bar}; (X) -> {error, X} end
-        , fun (bar) -> {ok, baz}; (X) -> {error, X} end
-        , fun (baz) -> {ok, qux}; (X) -> {error, X} end
-        ],
-    {ok, Z} = hope_result:pipe(Steps, A).
+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_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).