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
|
/**
* Copyright (C) 2014 MongoDB 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/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
/**
* This file tests db/exec/delete.cpp.
*/
#include <boost/scoped_ptr.hpp>
#include "mongo/db/catalog/collection.h"
#include "mongo/db/catalog/database.h"
#include "mongo/db/dbdirectclient.h"
#include "mongo/db/exec/collection_scan.h"
#include "mongo/db/exec/delete.h"
#include "mongo/db/operation_context_impl.h"
#include "mongo/dbtests/dbtests.h"
namespace QueryStageDelete {
using boost::scoped_ptr;
using std::vector;
//
// Stage-specific tests.
//
class QueryStageDeleteBase {
public:
QueryStageDeleteBase() : _client(&_txn) {
Client::WriteContext ctx(&_txn, ns());
for (size_t i = 0; i < numObj(); ++i) {
BSONObjBuilder bob;
bob.append("foo", static_cast<long long int>(i));
_client.insert(ns(), bob.obj());
}
}
virtual ~QueryStageDeleteBase() {
Client::WriteContext ctx(&_txn, ns());
_client.dropCollection(ns());
}
void remove(const BSONObj& obj) {
_client.remove(ns(), obj);
}
void getLocs(Collection* collection,
CollectionScanParams::Direction direction,
vector<RecordId>* out) {
WorkingSet ws;
CollectionScanParams params;
params.collection = collection;
params.direction = direction;
params.tailable = false;
scoped_ptr<CollectionScan> scan(new CollectionScan(&_txn, params, &ws, NULL));
while (!scan->isEOF()) {
WorkingSetID id = WorkingSet::INVALID_ID;
PlanStage::StageState state = scan->work(&id);
if (PlanStage::ADVANCED == state) {
WorkingSetMember* member = ws.get(id);
verify(member->hasLoc());
out->push_back(member->loc);
}
}
}
static size_t numObj() { return 50; }
static const char* ns() { return "unittests.QueryStageDelete"; }
protected:
OperationContextImpl _txn;
private:
DBDirectClient _client;
};
//
// Test invalidation for the delete stage. Use the delete stage to delete some objects
// retrieved by a collscan, then invalidate the upcoming object, then expect the delete stage to
// skip over it and successfully delete the rest.
//
class QueryStageDeleteInvalidateUpcomingObject : public QueryStageDeleteBase {
public:
void run() {
Client::WriteContext ctx(&_txn, ns());
Collection* coll = ctx.getCollection();
// Get the RecordIds that would be returned by an in-order scan.
vector<RecordId> locs;
getLocs(coll, CollectionScanParams::FORWARD, &locs);
// Configure the scan.
CollectionScanParams collScanParams;
collScanParams.collection = coll;
collScanParams.direction = CollectionScanParams::FORWARD;
collScanParams.tailable = false;
// Configure the delete stage.
DeleteStageParams deleteStageParams;
deleteStageParams.isMulti = true;
deleteStageParams.shouldCallLogOp = false;
WorkingSet ws;
DeleteStage deleteStage(&_txn, deleteStageParams, &ws, coll,
new CollectionScan(&_txn, collScanParams, &ws, NULL));
const DeleteStats* stats =
static_cast<const DeleteStats*>(deleteStage.getSpecificStats());
const size_t targetDocIndex = 10;
while (stats->docsDeleted < targetDocIndex) {
WorkingSetID id = WorkingSet::INVALID_ID;
PlanStage::StageState state = deleteStage.work(&id);
ASSERT_EQUALS(PlanStage::NEED_TIME, state);
}
// Remove locs[targetDocIndex];
deleteStage.saveState();
deleteStage.invalidate(&_txn, locs[targetDocIndex], INVALIDATION_DELETION);
BSONObj targetDoc = coll->docFor(&_txn, locs[targetDocIndex]);
ASSERT(!targetDoc.isEmpty());
remove(targetDoc);
deleteStage.restoreState(&_txn);
// Remove the rest.
while (!deleteStage.isEOF()) {
WorkingSetID id = WorkingSet::INVALID_ID;
PlanStage::StageState state = deleteStage.work(&id);
invariant(PlanStage::NEED_TIME == state || PlanStage::IS_EOF == state);
}
ASSERT_EQUALS(numObj() - 1, stats->docsDeleted);
}
};
class All : public Suite {
public:
All() : Suite("query_stage_delete") {}
void setupTests() {
// Stage-specific tests below.
add<QueryStageDeleteInvalidateUpcomingObject>();
}
};
SuiteInstance<All> all;
}
|
