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
|
<?php
namespace RingCentral\Tests\Psr7;
use RingCentral\Psr7;
use RingCentral\Psr7\FnStream;
use RingCentral\Psr7\Stream;
use RingCentral\Psr7\LimitStream;
use RingCentral\Psr7\NoSeekStream;
/**
* @covers RingCentral\Psr7\LimitStream
*/
class LimitStreamTest extends \PHPUnit_Framework_TestCase
{
/** @var LimitStream */
protected $body;
/** @var Stream */
protected $decorated;
public function setUp()
{
$this->decorated = Psr7\stream_for(fopen(__FILE__, 'r'));
$this->body = new LimitStream($this->decorated, 10, 3);
}
public function testReturnsSubset()
{
$body = new LimitStream(Psr7\stream_for('foo'), -1, 1);
$this->assertEquals('oo', (string) $body);
$this->assertTrue($body->eof());
$body->seek(0);
$this->assertFalse($body->eof());
$this->assertEquals('oo', $body->read(100));
$this->assertSame('', $body->read(1));
$this->assertTrue($body->eof());
}
public function testReturnsSubsetWhenCastToString()
{
$body = Psr7\stream_for('foo_baz_bar');
$limited = new LimitStream($body, 3, 4);
$this->assertEquals('baz', (string) $limited);
}
/**
* @expectedException \RuntimeException
* @expectedExceptionMessage Unable to seek to stream position 10 with whence 0
*/
public function testEnsuresPositionCanBeekSeekedTo()
{
new LimitStream(Psr7\stream_for(''), 0, 10);
}
public function testReturnsSubsetOfEmptyBodyWhenCastToString()
{
$body = Psr7\stream_for('01234567891234');
$limited = new LimitStream($body, 0, 10);
$this->assertEquals('', (string) $limited);
}
public function testReturnsSpecificSubsetOBodyWhenCastToString()
{
$body = Psr7\stream_for('0123456789abcdef');
$limited = new LimitStream($body, 3, 10);
$this->assertEquals('abc', (string) $limited);
}
public function testSeeksWhenConstructed()
{
$this->assertEquals(0, $this->body->tell());
$this->assertEquals(3, $this->decorated->tell());
}
public function testAllowsBoundedSeek()
{
$this->body->seek(100);
$this->assertEquals(10, $this->body->tell());
$this->assertEquals(13, $this->decorated->tell());
$this->body->seek(0);
$this->assertEquals(0, $this->body->tell());
$this->assertEquals(3, $this->decorated->tell());
try {
$this->body->seek(-10);
$this->fail();
} catch (\RuntimeException $e) {}
$this->assertEquals(0, $this->body->tell());
$this->assertEquals(3, $this->decorated->tell());
$this->body->seek(5);
$this->assertEquals(5, $this->body->tell());
$this->assertEquals(8, $this->decorated->tell());
// Fail
try {
$this->body->seek(1000, SEEK_END);
$this->fail();
} catch (\RuntimeException $e) {}
}
public function testReadsOnlySubsetOfData()
{
$data = $this->body->read(100);
$this->assertEquals(10, strlen($data));
$this->assertSame('', $this->body->read(1000));
$this->body->setOffset(10);
$newData = $this->body->read(100);
$this->assertEquals(10, strlen($newData));
$this->assertNotSame($data, $newData);
}
/**
* @expectedException \RuntimeException
* @expectedExceptionMessage Could not seek to stream offset 2
*/
public function testThrowsWhenCurrentGreaterThanOffsetSeek()
{
$a = Psr7\stream_for('foo_bar');
$b = new NoSeekStream($a);
$c = new LimitStream($b);
$a->getContents();
$c->setOffset(2);
}
public function testCanGetContentsWithoutSeeking()
{
$a = Psr7\stream_for('foo_bar');
$b = new NoSeekStream($a);
$c = new LimitStream($b);
$this->assertEquals('foo_bar', $c->getContents());
}
public function testClaimsConsumedWhenReadLimitIsReached()
{
$this->assertFalse($this->body->eof());
$this->body->read(1000);
$this->assertTrue($this->body->eof());
}
public function testContentLengthIsBounded()
{
$this->assertEquals(10, $this->body->getSize());
}
public function testGetContentsIsBasedOnSubset()
{
$body = new LimitStream(Psr7\stream_for('foobazbar'), 3, 3);
$this->assertEquals('baz', $body->getContents());
}
public function testReturnsNullIfSizeCannotBeDetermined()
{
$a = new FnStream(array(
'getSize' => function () { return null; },
'tell' => function () { return 0; },
));
$b = new LimitStream($a);
$this->assertNull($b->getSize());
}
public function testLengthLessOffsetWhenNoLimitSize()
{
$a = Psr7\stream_for('foo_bar');
$b = new LimitStream($a, -1, 4);
$this->assertEquals(3, $b->getSize());
}
}
|
