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
|
/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* 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 Server Side 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.
*/
#include "mongo/platform/basic.h"
#include <memory>
#include "mongo/db/catalog/capped_utils.h"
#include "mongo/db/client.h"
#include "mongo/db/db_raii.h"
#include "mongo/db/repl/replication_coordinator.h"
#include "mongo/db/repl/replication_coordinator_mock.h"
#include "mongo/db/repl/storage_interface_impl.h"
#include "mongo/db/service_context_d_test_fixture.h"
#include "mongo/unittest/unittest.h"
namespace {
using namespace mongo;
class CappedUtilsTest : public ServiceContextMongoDTest {
private:
void setUp() override;
void tearDown() override;
protected:
// Use StorageInterface to access storage features below catalog interface.
std::unique_ptr<repl::StorageInterface> _storage;
};
void CappedUtilsTest::setUp() {
// Set up mongod.
ServiceContextMongoDTest::setUp();
auto service = getServiceContext();
// Set up ReplicationCoordinator and ensure that we are primary.
auto replCoord = std::make_unique<repl::ReplicationCoordinatorMock>(service);
ASSERT_OK(replCoord->setFollowerMode(repl::MemberState::RS_PRIMARY));
repl::ReplicationCoordinator::set(service, std::move(replCoord));
_storage = std::make_unique<repl::StorageInterfaceImpl>();
}
void CappedUtilsTest::tearDown() {
_storage = {};
// Tear down mongod.
ServiceContextMongoDTest::tearDown();
}
/**
* Creates an OperationContext.
*/
ServiceContext::UniqueOperationContext makeOpCtx() {
auto opCtx = cc().makeOperationContext();
repl::createOplog(opCtx.get());
return opCtx;
}
/**
* Returns true if collection exists.
*/
bool collectionExists(OperationContext* opCtx, const NamespaceString& nss) {
return AutoGetCollectionForRead(opCtx, nss).getCollection() != nullptr;
}
/**
* Returns collection options.
*/
CollectionOptions getCollectionOptions(OperationContext* opCtx, const NamespaceString& nss) {
AutoGetCollectionForRead collection(opCtx, nss);
ASSERT_TRUE(collection) << "Unable to get collections options for " << nss
<< " because collection does not exist.";
return collection->getCollectionOptions();
}
// Size of capped collection to be passed to convertToCapped() which accepts a double.
// According to documentation, the size (in bytes) of capped collection must be a minimum of 4096
// and a multiple of 256.
const double cappedCollectionSize = 8192.0;
TEST_F(CappedUtilsTest, ConvertToCappedReturnsNamespaceNotFoundIfCollectionIsMissing) {
NamespaceString nss("test.t");
auto opCtx = makeOpCtx();
ASSERT_FALSE(collectionExists(opCtx.get(), nss));
ASSERT_THROWS_CODE(
convertToCapped(opCtx.get(), nss, 1000.0), DBException, ErrorCodes::NamespaceNotFound);
}
TEST_F(CappedUtilsTest, ConvertToCappedUpdatesCollectionOptionsOnSuccess) {
NamespaceString nss("test.t");
auto opCtx = makeOpCtx();
ASSERT_OK(_storage->createCollection(opCtx.get(), nss, {}));
auto options = getCollectionOptions(opCtx.get(), nss);
ASSERT_FALSE(options.capped);
convertToCapped(opCtx.get(), nss, cappedCollectionSize);
options = getCollectionOptions(opCtx.get(), nss);
ASSERT_TRUE(options.capped);
ASSERT_APPROX_EQUAL(cappedCollectionSize, options.cappedSize, 0.001)
<< "unexpected capped collection size: " << options.toBSON();
}
TEST_F(CappedUtilsTest, ConvertToCappedReturnsNamespaceNotFoundIfCollectionIsDropPending) {
NamespaceString nss("test.t");
repl::OpTime dropOpTime(Timestamp(Seconds(100), 0), 1LL);
auto dropPendingNss = nss.makeDropPendingNamespace(dropOpTime);
auto opCtx = makeOpCtx();
ASSERT_OK(_storage->createCollection(opCtx.get(), dropPendingNss, {}));
auto options = getCollectionOptions(opCtx.get(), dropPendingNss);
ASSERT_FALSE(options.capped);
ASSERT_THROWS_CODE(convertToCapped(opCtx.get(), dropPendingNss, cappedCollectionSize),
DBException,
ErrorCodes::NamespaceNotFound);
options = getCollectionOptions(opCtx.get(), dropPendingNss);
ASSERT_FALSE(options.capped);
}
} // namespace
|
