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Subject: svn commit: r1171872 - in /couchdb/trunk/test/etap:
 241-replication-large-atts.t Makefile.am
Date: Sat, 17 Sep 2011 00:18:45 -0000
To: commits@couchdb.apache.org
From: fdmanana@apache.org
Message-Id: <20110917001845.973622388900@eris.apache.org>

Author: fdmanana
Date: Sat Sep 17 00:18:45 2011
New Revision: 1171872

URL: http://svn.apache.org/viewvc?rev=1171872&view=rev
Log:
Add test 241-replication-large-atts.t

The purpose of this test is to verify that large attachments
are successfully replicated. It validates the attachments'
contents and metadata (lengths, md5s, type) by comparing
the source with the target database.


Added:
    couchdb/trunk/test/etap/241-replication-large-atts.t   (with props)
Modified:
    couchdb/trunk/test/etap/Makefile.am

Added: couchdb/trunk/test/etap/241-replication-large-atts.t
URL: http://svn.apache.org/viewvc/couchdb/trunk/test/etap/241-replication-large-atts.t?rev=1171872&view=auto
==============================================================================
--- couchdb/trunk/test/etap/241-replication-large-atts.t (added)
+++ couchdb/trunk/test/etap/241-replication-large-atts.t Sat Sep 17 00:18:45 2011
@@ -0,0 +1,267 @@
+#!/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.
+
+% Test replication of large attachments. Verify that both source and
+% target have the same attachment data and metadata.
+
+-define(b2l(Bin), binary_to_list(Bin)).
+
+-record(user_ctx, {
+    name = null,
+    roles = [],
+    handler
+}).
+
+-record(doc, {
+    id = <<"">>,
+    revs = {0, []},
+    body = {[]},
+    atts = [],
+    deleted = false,
+    meta = []
+}).
+
+-record(att, {
+    name,
+    type,
+    att_len,
+    disk_len,
+    md5= <<>>,
+    revpos=0,
+    data,
+    encoding=identity
+}).
+
+
+source_db_name() -> <<"couch_test_rep_db_a">>.
+target_db_name() -> <<"couch_test_rep_db_b">>.
+
+
+main(_) ->
+    test_util:init_code_path(),
+
+    etap:plan(1192),
+    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_server_sup:start_link(test_util:config_files()),
+    ibrowse:start(),
+    crypto:start(),
+    couch_config:set("attachments", "compressible_types", "text/*", false),
+
+    Pairs = [
+        {source_db_name(), target_db_name()},
+        {{remote, source_db_name()}, target_db_name()},
+        {source_db_name(), {remote, target_db_name()}},
+        {{remote, source_db_name()}, {remote, (target_db_name())}}
+    ],
+
+    {ok, SourceDb} = create_db(source_db_name()),
+    etap:diag("Populating source database"),
+    populate_db(SourceDb, 11),
+    ok = couch_db:close(SourceDb),
+
+    lists:foreach(
+        fun({Source, Target}) ->
+            etap:diag("Creating target database"),
+            {ok, TargetDb} = create_db(target_db_name()),
+
+            ok = couch_db:close(TargetDb),
+            etap:diag("Triggering replication"),
+            replicate(Source, Target),
+            etap:diag("Replication finished, comparing source and target databases"),
+            compare_dbs(SourceDb, TargetDb),
+
+            etap:diag("Deleting target database"),
+            delete_db(TargetDb),
+            ok = timer:sleep(1000)
+        end,
+        Pairs),
+
+    delete_db(SourceDb),
+    couch_server_sup:stop(),
+    ok.
+
+
+populate_db(Db, DocCount) ->
+    Docs = lists:foldl(
+        fun(DocIdCounter, Acc) ->
+            Doc = #doc{
+                id = iolist_to_binary(["doc", integer_to_list(DocIdCounter)]),
+                body = {[]},
+                atts = [
+                    att(<<"att1">>, 2 * 1024 * 1024, <<"text/plain">>),
+                    att(<<"att2">>, round(6.6 * 1024 * 1024), <<"app/binary">>)
+                ]
+            },
+            [Doc | Acc]
+        end,
+        [], lists:seq(1, DocCount)),
+    {ok, _} = couch_db:update_docs(Db, Docs, []).
+
+
+att(Name, Size, Type) ->
+    #att{
+        name = Name,
+        type = Type,
+        att_len = Size,
+        data = fun(Count) -> crypto:rand_bytes(Count) end
+    }.
+
+
+compare_dbs(Source, Target) ->
+    {ok, SourceDb} = couch_db:open_int(couch_db:name(Source), []),
+    {ok, TargetDb} = couch_db:open_int(couch_db:name(Target), []),
+
+    Fun = fun(FullDocInfo, _, Acc) ->
+        {ok, DocSource} = couch_db:open_doc(SourceDb, FullDocInfo),
+        Id = DocSource#doc.id,
+
+        etap:diag("Verifying document " ++ ?b2l(Id)),
+
+        {ok, DocTarget} = couch_db:open_doc(TargetDb, Id),
+        etap:is(DocTarget#doc.body, DocSource#doc.body,
+            "Same body in source and target databases"),
+
+        #doc{atts = SourceAtts} = DocSource,
+        #doc{atts = TargetAtts} = DocTarget,
+        etap:is(
+            lists:sort([N || #att{name = N} <- SourceAtts]),
+            lists:sort([N || #att{name = N} <- TargetAtts]),
+            "Document has same number (and names) of attachments in "
+            "source and target databases"),
+
+        lists:foreach(
+            fun(#att{name = AttName} = Att) ->
+                etap:diag("Verifying attachment " ++ ?b2l(AttName)),
+
+                {ok, AttTarget} = find_att(TargetAtts, AttName),
+                SourceMd5 = att_md5(Att),
+                TargetMd5 = att_md5(AttTarget),
+                case AttName of
+                <<"att1">> ->
+                    etap:is(Att#att.encoding, gzip,
+                        "Attachment is gzip encoded in source database"),
+                    etap:is(AttTarget#att.encoding, gzip,
+                        "Attachment is gzip encoded in target database"),
+                    DecSourceMd5 = att_decoded_md5(Att),
+                    DecTargetMd5 = att_decoded_md5(AttTarget),
+                    etap:is(DecTargetMd5, DecSourceMd5,
+                        "Same identity content in source and target databases");
+                _ ->
+                    etap:is(Att#att.encoding, identity,
+                        "Attachment is not encoded in source database"),
+                    etap:is(AttTarget#att.encoding, identity,
+                        "Attachment is not encoded in target database")
+                end,
+                etap:is(TargetMd5, SourceMd5,
+                    "Same content in source and target databases"),
+                etap:is(is_integer(Att#att.disk_len), true,
+                    "#att.disk_len is an integer in source database"),
+                etap:is(is_integer(Att#att.att_len), true,
+                    "#att.att_len is an integer in source database"),
+                etap:is(is_integer(AttTarget#att.disk_len), true,
+                    "#att.disk_len is an integer in target database"),
+                etap:is(is_integer(AttTarget#att.att_len), true,
+                    "#att.att_len is an integer in target database"),
+                etap:is(Att#att.disk_len, AttTarget#att.disk_len,
+                    "Same identity length in source and target databases"),
+                etap:is(Att#att.att_len, AttTarget#att.att_len,
+                    "Same encoded length in source and target databases"),
+                etap:is(Att#att.type, AttTarget#att.type,
+                    "Same type in source and target databases"),
+                etap:is(Att#att.md5, SourceMd5, "Correct MD5 in source database"),
+                etap:is(AttTarget#att.md5, SourceMd5, "Correct MD5 in target database")
+            end,
+            SourceAtts),
+
+        {ok, Acc}
+    end,
+
+    {ok, _, _} = couch_db:enum_docs(SourceDb, Fun, [], []),
+    ok = couch_db:close(SourceDb),
+    ok = couch_db:close(TargetDb).
+
+
+find_att([], _Name) ->
+    nil;
+find_att([#att{name = Name} = Att | _], Name) ->
+    {ok, Att};
+find_att([_ | Rest], Name) ->
+    find_att(Rest, Name).
+
+
+att_md5(Att) ->
+    Md50 = couch_doc:att_foldl(
+        Att,
+        fun(Chunk, Acc) -> couch_util:md5_update(Acc, Chunk) end,
+        couch_util:md5_init()),
+    couch_util:md5_final(Md50).
+
+att_decoded_md5(Att) ->
+    Md50 = couch_doc:att_foldl_decode(
+        Att,
+        fun(Chunk, Acc) -> couch_util:md5_update(Acc, Chunk) end,
+        couch_util:md5_init()),
+    couch_util:md5_final(Md50).
+
+
+db_url(DbName) ->
+    iolist_to_binary([
+        "http://", couch_config:get("httpd", "bind_address", "127.0.0.1"),
+        ":", integer_to_list(mochiweb_socket_server:get(couch_httpd, port)),
+        "/", DbName
+    ]).
+
+
+create_db(DbName) ->
+    couch_db:create(
+        DbName,
+        [{user_ctx, #user_ctx{roles = [<<"_admin">>]}}, overwrite]).
+
+
+delete_db(Db) ->
+    ok = couch_server:delete(
+        couch_db:name(Db), [{user_ctx, #user_ctx{roles = [<<"_admin">>]}}]).
+
+
+replicate({remote, Db}, Target) ->
+    replicate(db_url(Db), Target);
+
+replicate(Source, {remote, Db}) ->
+    replicate(Source, db_url(Db));
+
+replicate(Source, Target) ->
+    RepObject = {[
+        {<<"source">>, Source},
+        {<<"target">>, Target}
+    ]},
+    {ok, Rep} = couch_replicator_utils:parse_rep_doc(
+        RepObject, #user_ctx{roles = [<<"_admin">>]}),
+    {ok, Pid} = couch_replicator:async_replicate(Rep),
+    MonRef = erlang:monitor(process, Pid),
+    receive
+    {'DOWN', MonRef, process, Pid, Reason} ->
+        etap:is(Reason, normal, "Replication finished successfully")
+    after 300000 ->
+        etap:bail("Timeout waiting for replication to finish")
+    end.

Propchange: couchdb/trunk/test/etap/241-replication-large-atts.t
------------------------------------------------------------------------------
    svn:executable = *

Modified: couchdb/trunk/test/etap/Makefile.am
URL: http://svn.apache.org/viewvc/couchdb/trunk/test/etap/Makefile.am?rev=1171872&r1=1171871&r2=1171872&view=diff
==============================================================================
--- couchdb/trunk/test/etap/Makefile.am (original)
+++ couchdb/trunk/test/etap/Makefile.am Sat Sep 17 00:18:45 2011
@@ -88,4 +88,5 @@ EXTRA_DIST = \
     210-os-proc-pool.t \
     220-compaction-daemon.t \
     230-httpc-pool.t \
-    240-replication-compact.t
+    240-replication-compact.t \
+    241-replication-large-atts.t