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
|
/**
* Copyright (C) 2012 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/>.
*/
/**
* This file contains tests for mongo/db/geo/hash.cpp.
*/
#include <string>
#include <sstream>
#include "mongo/db/geo/hash.h"
#include "mongo/platform/random.h"
#include "mongo/unittest/unittest.h"
#include "mongo/util/assert_util.h"
using mongo::GeoHash;
using std::string;
using std::stringstream;
namespace {
TEST(GeoHash, MakeZeroHash) {
unsigned x = 0, y = 0;
GeoHash hash(x, y);
}
static string makeRandomBitString(int length) {
stringstream ss;
mongo::PseudoRandom random(31337);
for (int i = 0; i < length; ++i) {
if (random.nextInt32() & 1) {
ss << "1";
} else {
ss << "0";
}
}
return ss.str();
}
TEST(GeoHash, MakeRandomValidHashes) {
int maxStringLength = 64;
for (int i = 0; i < maxStringLength; i += 2) {
string a = makeRandomBitString(i);
GeoHash hashA = GeoHash(a);
(void)hashA.isBitSet(i, 0);
(void)hashA.isBitSet(i, 1);
}
}
// ASSERT_THROWS does not work if we try to put GeoHash(a) in the macro.
static GeoHash makeHash(const string& a) { return GeoHash(a); }
TEST(GeoHash, MakeTooLongHash) {
string a = makeRandomBitString(100);
ASSERT_THROWS(makeHash(a), mongo::UserException);
}
TEST(GeoHash, MakeOddHash) {
string a = makeRandomBitString(13);
ASSERT_THROWS(makeHash(a), mongo::UserException);
}
}
|
