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-rw-r--r--lib/kernel/test/application_SUITE.erl49
1 files changed, 47 insertions, 2 deletions
diff --git a/lib/kernel/test/application_SUITE.erl b/lib/kernel/test/application_SUITE.erl
index 9ec8a15861..ff62297f2d 100644
--- a/lib/kernel/test/application_SUITE.erl
+++ b/lib/kernel/test/application_SUITE.erl
@@ -33,7 +33,7 @@
permit_false_start_local/1, permit_false_start_dist/1, script_start/1,
nodedown_start/1, init2973/0, loop2973/0, loop5606/1]).
--export([config_change/1,
+-export([config_change/1, persistent_env/1,
distr_changed_tc1/1, distr_changed_tc2/1,
ensure_started/1, ensure_all_started/1,
shutdown_func/1, do_shutdown/1, shutdown_timeout/1]).
@@ -53,7 +53,8 @@ all() ->
load_use_cache, ensure_started, {group, reported_bugs}, start_phases,
script_start, nodedown_start, permit_false_start_local,
permit_false_start_dist, get_key, get_env, ensure_all_started,
- {group, distr_changed}, config_change, shutdown_func, shutdown_timeout].
+ {group, distr_changed}, config_change, shutdown_func, shutdown_timeout,
+ persistent_env].
groups() ->
[{reported_bugs, [],
@@ -1987,6 +1988,50 @@ get_appls([_ | T], Res) ->
get_appls([], Res) ->
Res.
+persistent_env(suite) ->
+ [];
+persistent_env(doc) ->
+ ["Test set_env/4 and unset_env/3 with persistent true"];
+persistent_env(Conf) when is_list(Conf) ->
+ ok = application:set_env(appinc, own2, persist, [{persistent, true}]),
+ ok = application:set_env(appinc, key1, persist, [{persistent, true}]),
+
+ %% own_env1 and own2 are set in appinc
+ ok = application:load(appinc()),
+ {ok, value1} = application:get_env(appinc, own_env1),
+ {ok, persist} = application:get_env(appinc, own2),
+ {ok, persist} = application:get_env(appinc, key1),
+
+ %% Changing the environment after loaded reflects and should persist
+ ok = application:set_env(appinc, own_env1, persist, [{persistent, true}]),
+ {ok, persist} = application:get_env(appinc, own_env1),
+ {ok, persist} = application:get_env(appinc, own2),
+ {ok, persist} = application:get_env(appinc, key1),
+
+ %% On reload, own_env1, own2 and key1 should all persist
+ ok = application:unload(appinc),
+ ok = application:load(appinc()),
+ {ok, persist} = application:get_env(appinc, own_env1),
+ {ok, persist} = application:get_env(appinc, own2),
+ {ok, persist} = application:get_env(appinc, key1),
+
+ %% Unset own_env1 and key1, own2 should still persist
+ ok = application:unset_env(appinc, own_env1, [{persistent, true}]),
+ ok = application:unset_env(appinc, key1, [{persistent, true}]),
+ undefined = application:get_env(appinc, own_env1),
+ {ok, persist} = application:get_env(appinc, own2),
+ undefined = application:get_env(appinc, key1),
+
+ %% own_env1 should be back to its application value on reload
+ ok = application:unload(appinc),
+ ok = application:load(appinc()),
+ {ok, value1} = application:get_env(appinc, own_env1),
+ {ok, persist} = application:get_env(appinc, own2),
+ undefined = application:get_env(appinc, key1),
+
+ %% Clean up
+ ok = application:unload(appinc).
+
%%%-----------------------------------------------------------------
%%% Tests the 'shutdown_func' kernel config parameter
%%%-----------------------------------------------------------------