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
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
// replsettests.cpp : Unit tests for replica sets
//
/**
* Copyright (C) 2009 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "pch.h"
#include "../db/repl.h"
#include "../db/db.h"
#include "../db/instance.h"
#include "../db/json.h"
#include "dbtests.h"
#include "../db/oplog.h"
#include "../db/queryoptimizer.h"
#include "../db/repl/rs.h"
namespace mongo {
void createOplog();
}
namespace ReplSetTests {
class Base {
static DBDirectClient client_;
public:
Base() {
cmdLine._replSet = "foo";
cmdLine.oplogSize = 5;
createOplog();
}
static const char *ns() {
return "unittests.repltests";
}
DBDirectClient *client() const { return &client_; }
static void insert( const BSONObj &o, bool god = false ) {
dblock lk;
Client::Context ctx( ns() );
theDataFileMgr.insert( ns(), o.objdata(), o.objsize(), god );
}
BSONObj findOne( const BSONObj &query = BSONObj() ) const {
return client()->findOne( ns(), query );
}
};
DBDirectClient Base::client_;
class MockInitialSync : public replset::InitialSync {
int step;
public:
MockInitialSync() : replset::InitialSync(""), step(0), failOnStep(SUCCEED), retry(true) {}
enum FailOn {SUCCEED, FAIL_FIRST_APPLY, FAIL_BOTH_APPLY};
FailOn failOnStep;
bool retry;
// instead of actually applying operations, we return success or failure
virtual bool syncApply(const BSONObj& o) {
step++;
if ((failOnStep == FAIL_FIRST_APPLY && step == 1) ||
(failOnStep == FAIL_BOTH_APPLY)) {
return false;
}
return true;
}
virtual bool shouldRetry(const BSONObj& o) {
return retry;
}
};
class TestInitApplyOp : public Base {
public:
void run() {
writelock lk("");
OpTime o1 = OpTime::now();
OpTime o2 = OpTime::now();
BSONObjBuilder b;
b.appendTimestamp("ts", o2.asLL());
BSONObj obj = b.obj();
MockInitialSync mock;
// all three should succeed
mock.applyOp(obj, o1);
mock.failOnStep = MockInitialSync::FAIL_FIRST_APPLY;
mock.applyOp(obj, o1);
mock.retry = false;
mock.applyOp(obj, o1);
// force failure
MockInitialSync mock2;
mock2.failOnStep = MockInitialSync::FAIL_BOTH_APPLY;
ASSERT_THROWS(mock2.applyOp(obj, o2), UserException);
}
};
class SyncTest2 : public replset::InitialSync {
public:
bool insertOnRetry;
SyncTest2() : replset::InitialSync(""), insertOnRetry(false) {}
virtual ~SyncTest2() {}
virtual bool shouldRetry(const BSONObj& o) {
if (!insertOnRetry) {
return true;
}
Base::insert(BSON("_id" << 123));
return true;
}
};
class TestInitApplyOp2 : public Base {
public:
void run() {
writelock lk("");
OpTime o1 = OpTime::now();
OpTime o2 = OpTime::now();
BSONObjBuilder b;
b.appendTimestamp("ts", o2.asLL());
b.append("op", "u");
b.append("o", BSON("$set" << BSON("x" << 456)));
b.append("o2", BSON("_id" << 123));
b.append("ns", ns());
BSONObj obj = b.obj();
SyncTest2 sync;
ASSERT_THROWS(sync.applyOp(obj, o1), UserException);
sync.insertOnRetry = true;
// succeeds
sync.applyOp(obj, o1);
BSONObj fin = findOne();
assert(fin["x"].Number() == 456);
}
};
class CappedInitialSync : public Base {
string _ns;
dblock lk;
Client::Context _context;
string spec() const {
return "{\"capped\":true,\"size\":512}";
}
void create() {
dblock lk;
string err;
ASSERT(userCreateNS( _ns.c_str(), fromjson( spec() ), err, false ));
}
void drop() {
string s( _ns );
string errmsg;
BSONObjBuilder result;
dropCollection( s, errmsg, result );
}
public:
CappedInitialSync() : _ns("unittests.foo.bar"), _context(_ns) {
if (nsdetails(_ns.c_str()) != NULL) {
drop();
}
}
~CappedInitialSync() {
if ( nsdetails(_ns.c_str()) == NULL )
return;
drop();
}
void run() {
create();
BSONObjBuilder b;
b.appendTimestamp("ts", OpTime::now().asLL());
b.append("op", "u");
b.append("o", BSON("$set" << BSON("x" << 456)));
b.append("o2", BSON("_id" << 123 << "x" << 123));
b.append("ns", _ns);
// in an annoying twist of api, returns true on failure
assert(applyOperation_inlock(b.obj(), true));
}
};
class All : public Suite {
public:
All() : Suite( "replset" ) {
}
void setupTests() {
add< TestInitApplyOp >();
add< TestInitApplyOp2 >();
add< CappedInitialSync >();
}
} myall;
}
|
