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
|
/**
* Copyright (C) 2015 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.
*/
#include "mongo/platform/basic.h"
#include "mongo/s/query/store_possible_cursor.h"
#include "mongo/bson/json.h"
#include "mongo/db/query/cursor_response.h"
#include "mongo/s/query/cluster_cursor_manager.h"
#include "mongo/unittest/unittest.h"
#include "mongo/util/clock_source_mock.h"
#include "mongo/util/net/hostandport.h"
namespace mongo {
namespace {
const NamespaceString nss("test.collection");
const HostAndPort hostAndPort("testhost", 27017);
class StorePossibleCursorTest : public unittest::Test {
protected:
StorePossibleCursorTest() : _manager(&_clockSourceMock) {}
ClusterCursorManager* getManager() {
return &_manager;
}
private:
ClockSourceMock _clockSourceMock;
ClusterCursorManager _manager;
};
// Test that storePossibleCursor() returns a valid cursor response document.
TEST_F(StorePossibleCursorTest, ReturnsValidCursorResponse) {
std::vector<BSONObj> batch = {fromjson("{_id: 1}"), fromjson("{_id: 2}")};
CursorResponse cursorResponse(nss, CursorId(0), batch);
auto outgoingCursorResponse =
storePossibleCursor(hostAndPort,
cursorResponse.toBSON(CursorResponse::ResponseType::InitialResponse),
nullptr, // TaskExecutor
getManager());
ASSERT_OK(outgoingCursorResponse.getStatus());
auto parsedOutgoingResponse = CursorResponse::parseFromBSON(outgoingCursorResponse.getValue());
ASSERT_OK(parsedOutgoingResponse.getStatus());
ASSERT_EQ(nss.toString(), parsedOutgoingResponse.getValue().getNSS().toString());
ASSERT_EQ(0U, parsedOutgoingResponse.getValue().getCursorId());
ASSERT_EQ(2U, parsedOutgoingResponse.getValue().getBatch().size());
ASSERT_BSONOBJ_EQ(fromjson("{_id: 1}"), parsedOutgoingResponse.getValue().getBatch()[0]);
ASSERT_BSONOBJ_EQ(fromjson("{_id: 2}"), parsedOutgoingResponse.getValue().getBatch()[1]);
}
// Test that storePossibleCursor() propagates an error if it cannot parse the cursor response.
TEST_F(StorePossibleCursorTest, FailsGracefullyOnBadCursorResponseDocument) {
auto outgoingCursorResponse = storePossibleCursor(hostAndPort,
fromjson("{ok: 1, cursor: {}}"),
nullptr, // TaskExecutor
getManager());
ASSERT_NOT_OK(outgoingCursorResponse.getStatus());
ASSERT_EQ(ErrorCodes::TypeMismatch, outgoingCursorResponse.getStatus());
}
// Test that storePossibleCursor() passes up the command response if it is not recognized as a
// cursor response.
TEST_F(StorePossibleCursorTest, PassesUpCommandResultIfItDoesNotDescribeACursor) {
BSONObj notACursorObj = BSON("not"
<< "cursor");
auto outgoingCursorResponse = storePossibleCursor(hostAndPort,
notACursorObj,
nullptr, // TaskExecutor
getManager());
ASSERT_OK(outgoingCursorResponse.getStatus());
ASSERT_BSONOBJ_EQ(notACursorObj, outgoingCursorResponse.getValue());
}
} // namespace
} // namespace mongo
|
