Lots of tests for couch_config.erl

Refactored couch_config.erl to resolve COUCHDB-384
Tweaked the main Makefile.am to make the cover and check targets depend on the dev target instead of the all target.
Added the executable property to all test files to make them easily runnable as standalone tests (as in not via prove).



git-svn-id: https://svn.apache.org/repos/asf/couchdb/trunk@787914 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 75 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..9f454984
--- /dev/null
+++ b/test/etap/082-config-register.t
@@ -0,0 +1,75 @@
+#!/usr/bin/env escript
+%% -*- erlang -*-
+
+default_config() ->
+    "etc/couchdb/default_dev.ini".
+
+main(_) ->
+    code:add_pathz("src/couchdb"),
+    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"
+    ),
+   
+    ok.
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