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
<?php
namespace MongoDB\Tests\GridFS;
use MongoDB\BSON\Binary;
use MongoDB\GridFS\CollectionWrapper;
use MongoDB\GridFS\ReadableStream;
/**
* Functional tests for the internal ReadableStream class.
*/
class ReadableStreamFunctionalTest extends FunctionalTestCase
{
private $collectionWrapper;
public function setUp()
{
parent::setUp();
$this->collectionWrapper = new CollectionWrapper($this->manager, $this->getDatabaseName(), 'fs');
$this->filesCollection->insertMany([
['_id' => 'length-0', 'length' => 0, 'chunkSize' => 4],
['_id' => 'length-0-with-empty-chunk', 'length' => 0, 'chunkSize' => 4],
['_id' => 'length-2', 'length' => 2, 'chunkSize' => 4],
['_id' => 'length-8', 'length' => 8, 'chunkSize' => 4],
['_id' => 'length-10', 'length' => 10, 'chunkSize' => 4],
]);
$this->chunksCollection->insertMany([
['_id' => 1, 'files_id' => 'length-0-with-empty-chunk', 'n' => 0, 'data' => new Binary('', Binary::TYPE_GENERIC)],
['_id' => 2, 'files_id' => 'length-2', 'n' => 0, 'data' => new Binary('ab', Binary::TYPE_GENERIC)],
['_id' => 3, 'files_id' => 'length-8', 'n' => 0, 'data' => new Binary('abcd', Binary::TYPE_GENERIC)],
['_id' => 4, 'files_id' => 'length-8', 'n' => 1, 'data' => new Binary('efgh', Binary::TYPE_GENERIC)],
['_id' => 5, 'files_id' => 'length-10', 'n' => 0, 'data' => new Binary('abcd', Binary::TYPE_GENERIC)],
['_id' => 6, 'files_id' => 'length-10', 'n' => 1, 'data' => new Binary('efgh', Binary::TYPE_GENERIC)],
['_id' => 7, 'files_id' => 'length-10', 'n' => 2, 'data' => new Binary('ij', Binary::TYPE_GENERIC)],
]);
}
public function testValidConstructorFileDocument()
{
new ReadableStream($this->collectionWrapper, (object) ['_id' => null, 'chunkSize' => 1, 'length' => 0]);
}
/**
* @expectedException MongoDB\GridFS\Exception\CorruptFileException
* @dataProvider provideInvalidConstructorFileDocuments
*/
public function testConstructorFileDocumentChecks($file)
{
new ReadableStream($this->collectionWrapper, $file);
}
public function provideInvalidConstructorFileDocuments()
{
$options = [];
foreach ($this->getInvalidIntegerValues() as $value) {
$options[][] = (object) ['_id' => 1, 'chunkSize' => $value, 'length' => 0];
}
foreach ($this->getInvalidIntegerValues() as $value) {
$options[][] = (object) ['_id' => 1, 'chunkSize' => 1, 'length' => $value];
}
$options[][] = (object) ['_id' => 1, 'chunkSize' => 0, 'length' => 0];
$options[][] = (object) ['_id' => 1, 'chunkSize' => 1, 'length' => -1];
$options[][] = (object) ['chunkSize' => 1, 'length' => 0];
return $options;
}
/**
* @dataProvider provideFileIdAndExpectedBytes
*/
public function testDownloadNumBytes($fileId, $numBytes, $expectedBytes)
{
$fileDocument = $this->collectionWrapper->findFileById($fileId);
$stream = new ReadableStream($this->collectionWrapper, $fileDocument);
$this->assertSame($expectedBytes, $stream->downloadNumBytes($numBytes));
}
public function provideFileIdAndExpectedBytes()
{
return [
['length-0', 0, ''],
['length-0', 2, ''],
['length-0-with-empty-chunk', 0, ''],
['length-0-with-empty-chunk', 2, ''],
['length-2', 0, ''],
['length-2', 2, 'ab'],
['length-2', 4, 'ab'],
['length-8', 0, ''],
['length-8', 2, 'ab'],
['length-8', 4, 'abcd'],
['length-8', 6, 'abcdef'],
['length-8', 8, 'abcdefgh'],
['length-8', 10, 'abcdefgh'],
['length-10', 0, ''],
['length-10', 2, 'ab'],
['length-10', 4, 'abcd'],
['length-10', 6, 'abcdef'],
['length-10', 8, 'abcdefgh'],
['length-10', 10, 'abcdefghij'],
['length-10', 12, 'abcdefghij'],
];
}
/**
* @dataProvider provideFileIdAndExpectedBytes
*/
public function testDownloadNumBytesCalledMultipleTimes($fileId, $numBytes, $expectedBytes)
{
$fileDocument = $this->collectionWrapper->findFileById($fileId);
$stream = new ReadableStream($this->collectionWrapper, $fileDocument);
for ($i = 0; $i < $numBytes; $i++) {
$expectedByte = isset($expectedBytes[$i]) ? $expectedBytes[$i] : '';
$this->assertSame($expectedByte, $stream->downloadNumBytes(1));
}
}
/**
* @expectedException MongoDB\GridFS\Exception\CorruptFileException
* @expectedExceptionMessage Chunk not found for index "2"
*/
public function testDownloadNumBytesWithMissingChunk()
{
$this->chunksCollection->deleteOne(['files_id' => 'length-10', 'n' => 2]);
$fileDocument = $this->collectionWrapper->findFileById('length-10');
$stream = new ReadableStream($this->collectionWrapper, $fileDocument);
$stream->downloadNumBytes(10);
}
/**
* @expectedException MongoDB\GridFS\Exception\CorruptFileException
* @expectedExceptionMessage Expected chunk to have index "1" but found "2"
*/
public function testDownloadNumBytesWithUnexpectedChunkIndex()
{
$this->chunksCollection->deleteOne(['files_id' => 'length-10', 'n' => 1]);
$fileDocument = $this->collectionWrapper->findFileById('length-10');
$stream = new ReadableStream($this->collectionWrapper, $fileDocument);
$stream->downloadNumBytes(10);
}
/**
* @expectedException MongoDB\GridFS\Exception\CorruptFileException
* @expectedExceptionMessage Expected chunk to have size "2" but found "1"
*/
public function testDownloadNumBytesWithUnexpectedChunkSize()
{
$this->chunksCollection->updateOne(
['files_id' => 'length-10', 'n' => 2],
['$set' => ['data' => new Binary('i', Binary::TYPE_GENERIC)]]
);
$fileDocument = $this->collectionWrapper->findFileById('length-10');
$stream = new ReadableStream($this->collectionWrapper, $fileDocument);
$stream->downloadNumBytes(10);
}
/**
* @expectedException MongoDB\Exception\InvalidArgumentException
*/
public function testDownloadNumBytesWithNegativeReadSize()
{
$fileDocument = $this->collectionWrapper->findFileById('length-0');
$stream = new ReadableStream($this->collectionWrapper, $fileDocument);
$stream->downloadNumBytes(-1);
}
}