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From kxe...@apache.org
Subject [12/50] couchdb commit: updated refs/heads/1963-eunit to bfb7eb9
Date Mon, 16 Jun 2014 22:52:53 GMT
Port 082-config-register.t etap test suite to eunit

Merged into couch_config_tests suite.


Project: http://git-wip-us.apache.org/repos/asf/couchdb/repo
Commit: http://git-wip-us.apache.org/repos/asf/couchdb/commit/806f13bb
Tree: http://git-wip-us.apache.org/repos/asf/couchdb/tree/806f13bb
Diff: http://git-wip-us.apache.org/repos/asf/couchdb/diff/806f13bb

Branch: refs/heads/1963-eunit
Commit: 806f13bbd8d8985eae044b4650ca630ecb5fd13e
Parents: 09a0e6d
Author: Alexander Shorin <kxepal@apache.org>
Authored: Mon May 26 09:26:22 2014 +0400
Committer: Alexander Shorin <kxepal@apache.org>
Committed: Mon Jun 16 00:51:18 2014 +0400

----------------------------------------------------------------------
 test/couchdb/couch_config_tests.erl | 147 ++++++++++++++++++++++++++++++-
 test/etap/082-config-register.t     |  94 --------------------
 test/etap/Makefile.am               |   1 -
 3 files changed, 146 insertions(+), 96 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/couchdb/blob/806f13bb/test/couchdb/couch_config_tests.erl
----------------------------------------------------------------------
diff --git a/test/couchdb/couch_config_tests.erl b/test/couchdb/couch_config_tests.erl
index 4bdc333..fdd2479 100644
--- a/test/couchdb/couch_config_tests.erl
+++ b/test/couchdb/couch_config_tests.erl
@@ -15,6 +15,7 @@
 -include("couch_eunit.hrl").
 -include_lib("couchdb/couch_db.hrl").
 
+-define(SHORT_TIMEOUT, 100).
 -define(TIMEOUT, 1000).
 
 -define(CONFIG_DEFAULT,
@@ -43,6 +44,32 @@ setup(Chain) ->
     {ok, Pid} = couch_config:start_link(Chain),
     Pid.
 
+setup_register() ->
+    ConfigPid = setup(),
+    SentinelFunc = fun() ->
+        % Ping/Pong to make sure we wait for this
+        % process to die
+        receive
+            {ping, From} ->
+                From ! pong
+        end
+    end,
+    SentinelPid = spawn(SentinelFunc),
+    {ConfigPid, SentinelPid}.
+
+teardown({ConfigPid, SentinelPid}) ->
+    teardown(ConfigPid),
+    case process_info(SentinelPid) of
+        undefined -> ok;
+        _ ->
+            SentinelPid ! {ping, self()},
+            receive
+                pong ->
+                    ok
+            after 100 ->
+                throw({timeout_error, registered_pid})
+            end
+    end;
 teardown(Pid) ->
     couch_config:stop(),
     erlang:monitor(process, Pid),
@@ -64,7 +91,8 @@ couch_config_test_() ->
             couch_config_set_tests(),
             couch_config_del_tests(),
             config_override_tests(),
-            config_persistent_changes_tests()
+            config_persistent_changes_tests(),
+            config_register_tests()
         ]
     }.
 
@@ -152,6 +180,21 @@ config_persistent_changes_tests() ->
         }
     }.
 
+config_register_tests() ->
+    {
+        "Config changes subscriber",
+        {
+            foreach,
+            fun setup_register/0, fun teardown/1,
+            [
+                fun should_handle_port_changes/1,
+                fun should_pass_persistent_flag/1,
+                fun should_not_trigger_handler_on_other_options_changes/1,
+                fun should_not_trigger_handler_after_related_process_death/1
+            ]
+        }
+    }.
+
 
 should_load_all_configs() ->
     ?_assert(length(couch_config:all()) > 0).
@@ -281,3 +324,105 @@ should_ensure_that_written_to_last_config_in_chain(_, _) ->
         ?assertEqual(undefined,
                      couch_config:get("httpd", "bind_address"))
     end).
+
+should_handle_port_changes({_, SentinelPid}) ->
+    ?_assert(begin
+        MainProc = self(),
+        Port = "8080",
+
+        couch_config:register(
+            fun("httpd", "port", Value) ->
+                % couch_config catches every error raised from handler
+                % so it's not possible to just assert on wrong value.
+                % We have to return the result as message
+                MainProc ! (Value =:= Port)
+            end,
+            SentinelPid
+        ),
+        ok = couch_config:set("httpd", "port", Port, false),
+
+        receive
+            R ->
+                R
+        after ?TIMEOUT ->
+             erlang:error({assertion_failed,
+                           [{module, ?MODULE},
+                            {line, ?LINE},
+                            {reason, "Timeout"}]})
+        end
+    end).
+
+should_pass_persistent_flag({_, SentinelPid}) ->
+    ?_assert(begin
+        MainProc = self(),
+
+        couch_config:register(
+            fun("httpd", "port", _, Persist) ->
+                % couch_config catches every error raised from handler
+                % so it's not possible to just assert on wrong value.
+                % We have to return the result as message
+                MainProc ! Persist
+            end,
+            SentinelPid
+        ),
+        ok = couch_config:set("httpd", "port", "8080", false),
+
+        receive
+            false ->
+                true
+        after ?SHORT_TIMEOUT ->
+            false
+        end
+    end).
+
+should_not_trigger_handler_on_other_options_changes({_, SentinelPid}) ->
+    ?_assert(begin
+        MainProc = self(),
+
+        couch_config:register(
+            fun("httpd", "port", _) ->
+                MainProc ! ok
+            end,
+            SentinelPid
+        ),
+        ok = couch_config:set("httpd", "bind_address", "0.0.0.0", false),
+
+        receive
+            ok ->
+                false
+        after ?SHORT_TIMEOUT ->
+            true
+        end
+    end).
+
+should_not_trigger_handler_after_related_process_death({_, SentinelPid}) ->
+    ?_assert(begin
+        MainProc = self(),
+
+        couch_config:register(
+            fun("httpd", "port", _) ->
+                MainProc ! ok
+            end,
+            SentinelPid
+        ),
+
+        SentinelPid ! {ping, MainProc},
+        receive
+            pong ->
+                ok
+        after ?SHORT_TIMEOUT ->
+             erlang:error({assertion_failed,
+                           [{module, ?MODULE},
+                            {line, ?LINE},
+                            {reason, "Timeout"}]})
+        end,
+
+        ok = couch_config:set("httpd", "port", "12345", false),
+
+        receive
+            ok ->
+                false
+        after ?SHORT_TIMEOUT ->
+            true
+        end
+    end).

http://git-wip-us.apache.org/repos/asf/couchdb/blob/806f13bb/test/etap/082-config-register.t
----------------------------------------------------------------------
diff --git a/test/etap/082-config-register.t b/test/etap/082-config-register.t
deleted file mode 100755
index 191ba8f..0000000
--- a/test/etap/082-config-register.t
+++ /dev/null
@@ -1,94 +0,0 @@
-#!/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.

http://git-wip-us.apache.org/repos/asf/couchdb/blob/806f13bb/test/etap/Makefile.am
----------------------------------------------------------------------
diff --git a/test/etap/Makefile.am b/test/etap/Makefile.am
index 07583ac..25889f4 100644
--- a/test/etap/Makefile.am
+++ b/test/etap/Makefile.am
@@ -36,7 +36,6 @@ fixture_files = \
     fixtures/test.couch
 
 tap_files = \
-    082-config-register.t \
     083-config-no-files.t \
     090-task-status.t \
     100-ref-counter.t \


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