1 files changed, 94 insertions, 0 deletions
diff --git a/test/etap/082-config-register.t b/test/etap/082-config-register.t
new file mode 100755
index 00000000..191ba8f8
--- /dev/null
+++ b/test/etap/082-config-register.t
@@ -0,0 +1,94 @@
+#!/usr/bin/env escript
+%% -*- erlang -*-
+
+% Licensed under the Apache License, Version 2.0 (the "License"); you may not
+% use this file except in compliance with the License. You may obtain a copy of
+% the License at
+%
+%   http://www.apache.org/licenses/LICENSE-2.0
+%
+% Unless required by applicable law or agreed to in writing, software
+% distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+% WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+% License for the specific language governing permissions and limitations under
+% the License.
+
+default_config() ->
+    test_util:build_file("etc/couchdb/default_dev.ini").
+
+main(_) ->
+    test_util:init_code_path(),
+    etap:plan(5),
+    case (catch test()) of
+        ok ->
+            etap:end_tests();
+        Other ->
+            etap:diag(io_lib:format("Test died abnormally: ~p", [Other])),
+            etap:bail(Other)
+    end,
+    ok.
+
+test() ->
+    couch_config:start_link([default_config()]),
+
+    etap:is(
+        couch_config:get("httpd", "port"),
+        "5984",
+        "{httpd, port} is 5984 by default."
+    ),
+
+    ok = couch_config:set("httpd", "port", "4895", false),
+
+    etap:is(
+        couch_config:get("httpd", "port"),
+        "4895",
+        "{httpd, port} changed to 4895"
+    ),
+
+    SentinelFunc = fun() ->
+        % Ping/Pong to make sure we wait for this
+        % process to die
+        receive {ping, From} -> From ! pong end
+    end,
+    SentinelPid = spawn(SentinelFunc),
+
+    couch_config:register(
+        fun("httpd", "port", Value) ->
+            etap:is(Value, "8080", "Registered function got notification.")
+        end,
+        SentinelPid
+    ),
+
+    ok = couch_config:set("httpd", "port", "8080", false),
+
+    % Implicitly checking that we *don't* call the function
+    etap:is(
+        couch_config:get("httpd", "bind_address"),
+        "127.0.0.1",
+        "{httpd, bind_address} is not '0.0.0.0'"
+    ),
+    ok = couch_config:set("httpd", "bind_address", "0.0.0.0", false),
+
+    % Ping-Pong kill process
+    SentinelPid ! {ping, self()},
+    receive
+        _Any -> ok
+    after 1000 ->
+        throw({timeout_error, registered_pid})
+    end,
+
+    ok = couch_config:set("httpd", "port", "80", false),
+    etap:is(
+        couch_config:get("httpd", "port"),
+        "80",
+        "Implicitly test that the function got de-registered"
+    ),
+
+    % test passing of Persist flag
+    couch_config:register(
+        fun("httpd", _, _, Persist) ->
+            etap:is(Persist, false)
+        end),
+    ok = couch_config:set("httpd", "port", "80", false),
+
+    ok.