1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
|
// 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.
couchTests.rev_stemming = function(debug) {
var db_name_orig = get_random_db_name();
var db_orig = new CouchDB(db_name_orig, {"X-CouchDB-Full-Commit": "false"});
db_orig.createDb();
var db_name = get_random_db_name();
var db = new CouchDB(db_name, {"X-Couch-Full-Commit":"false"});
var db_name_b = get_random_db_name();
var dbB = new CouchDB(db_name_b, {"X-Couch-Full-Commit":"false"});
db.createDb();
dbB.createDb();
if (debug) debugger;
var newLimit = 5;
T(db.getDbProperty("_revs_limit") == 1000);
/*
// Make an invalid request to _revs_limit
// Should return 400
/// XXX: Currently returns 500
var xhr = CouchDB.request("PUT", "/" + db.name + "/_revs_limit", {body:"\"foo\""});
T(xhr.status == 400);
var result = JSON.parse(xhr.responseText);
T(result.error == "bad_request");
T(result.reason == "Rev limit has to be an integer");
*/
var doc = {_id:"foo",foo:0}
for( var i=0; i < newLimit + 1; i++) {
doc.foo++;
T(db.save(doc).ok);
}
var doc0 = db.open("foo", {revs:true});
T(doc0._revisions.ids.length == newLimit + 1);
var docBar = {_id:"bar",foo:0}
for( var i=0; i < newLimit + 1; i++) {
docBar.foo++;
T(db.save(docBar).ok);
}
T(db.open("bar", {revs:true})._revisions.ids.length == newLimit + 1);
T(db.setDbProperty("_revs_limit", newLimit).ok);
for( var i=0; i < newLimit + 1; i++) {
doc.foo++;
T(db.save(doc).ok);
}
doc0 = db.open("foo", {revs:true});
T(doc0._revisions.ids.length == newLimit);
// If you replicate after you make more edits than the limit, you'll
// cause a spurious edit conflict.
CouchDB.replicate(db.name, dbB.name);
var docB1 = dbB.open("foo",{conflicts:true})
T(docB1._conflicts == null);
for( var i=0; i < newLimit - 1; i++) {
doc.foo++;
T(db.save(doc).ok);
}
// one less edit than limit, no conflict
CouchDB.replicate(db.name, dbB.name);
var docB1 = dbB.open("foo",{conflicts:true})
T(docB1._conflicts == null);
//now we hit the limit
for( var i=0; i < newLimit; i++) {
doc.foo++;
T(db.save(doc).ok);
}
CouchDB.replicate(db.name, dbB.name);
var docB2 = dbB.open("foo",{conflicts:true});
// we have a conflict, but the previous replicated rev is always the losing
// conflict
T(docB2._conflicts[0] == docB1._rev)
// We having already updated bar before setting the limit, so it's still got
// a long rev history. compact to stem the revs.
T(db.open("bar", {revs:true})._revisions.ids.length == newLimit);
T(db.compact().ok);
// compaction isn't instantaneous, loop until done
while (db.info().compact_running) {};
// force reload because ETags don't honour compaction
var req = db.request("GET", "/" + db.name + "/bar?revs=true", {
headers:{"if-none-match":"pommes"}
});
var finalDoc = JSON.parse(req.responseText);
TEquals(newLimit, finalDoc._revisions.ids.length,
"should return a truncated revision list");
// cleanup
db_orig.deleteDb();
db.deleteDb();
dbB.deleteDb();
};
|
