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
|
// 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.recreate_doc = function(debug) {
var db = new CouchDB("test_suite_db", {"X-Couch-Full-Commit":"false"});
db.deleteDb();
db.createDb();
if (debug) debugger;
// First create a new document with the ID "foo", and delete it again
var doc = {_id: "foo", a: "bar", b: 42};
var result = db.save(doc);
T(result.ok);
var firstRev = result.rev;
T(db.deleteDoc(doc).ok);
// Now create a new document with the same ID, save it, and then modify it
for (var i = 0; i < 10; i++) {
doc = {_id: "foo"};
T(db.save(doc).ok);
doc = db.open("foo");
doc.a = "baz";
T(db.save(doc).ok);
T(db.deleteDoc(doc).rev != undefined);
}
try {
// COUCHDB-292 now attempt to save the document with a prev that's since
// been deleted and this should generate a conflict exception
db.save({_id:"foo", _rev:firstRev, bar:1});
T("no save conflict 1" && false); // we shouldn't hit here
} catch (e) {
T(e.error == "conflict");
}
var binAttDoc = {
_id: "foo",
_rev:firstRev,
_attachments:{
"foo.txt": {
content_type:"text/plain",
data: "VGhpcyBpcyBhIGJhc2U2NCBlbmNvZGVkIHRleHQ="
}
}
};
try {
// same as before, but with binary
db.save(binAttDoc);
T("no save conflict 2" && false); // we shouldn't hit here
} catch (e) {
T(e.error == "conflict");
}
try {
// random non-existant prev rev
db.save({_id:"foo", _rev:"1-asfafasdf", bar:1});
T("no save conflict 3" && false); // we shouldn't hit here
} catch (e) {
T(e.error == "conflict");
}
try {
// random non-existant prev rev with bin
binAttDoc._rev = "1-aasasfasdf";
db.save(binAttDoc);
T("no save conflict 4" && false); // we shouldn't hit here
} catch (e) {
T(e.error == "conflict");
}
db.deleteDb();
db.createDb();
// COUCHDB-1265
// Resuscitate an unavailable old revision and make sure that it
// doesn't introduce duplicates into the _changes feed.
var doc = {_id: "bar", count: 0};
T(db.save(doc).ok);
var ghost = {_id: "bar", _rev: doc._rev, count: doc.count};
for(var i = 0; i < 2; i++) {
doc.count += 1;
T(db.save(doc).ok);
}
// Compact so that the old revision to be resuscitated will be
// in the rev_tree as ?REV_MISSING
db.compact();
while(db.info().compact_running) {}
// Saving the ghost here puts it back in the rev_tree in such
// a way as to create a new update_seq but without changing a
// leaf revision. This would cause the #full_doc_info{} and
// #doc_info{} records to diverge in their idea of what the
// doc's update_seq is and end up introducing a duplicate in
// the _changes feed the next time this doc is updated.
T(db.save(ghost, {new_edits: false}).ok);
// The duplicate would have been introduce here becuase the #doc_info{}
// would not have been removed correctly.
T(db.save(doc).ok);
// And finally assert that there are no duplicates in _changes.
var req = CouchDB.request("GET", "/test_suite_db/_changes");
var resp = JSON.parse(req.responseText);
var docids = {};
for(var i = 0; i < resp.results.length; i++) {
T(docids[resp.results[i].id] === undefined, "Duplicates in _changes feed.");
docids[resp.results[i].id] = true;
}
};
|
