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

<?php
namespace GuzzleHttp\Tests\Psr7;

use GuzzleHttp\Psr7\NoSeekStream;
use GuzzleHttp\Psr7\Stream;

/**
 * @covers GuzzleHttp\Psr7\Stream
 */
class StreamTest extends \PHPUnit_Framework_TestCase
{
    /**
     * @expectedException \InvalidArgumentException
     */
    public function testConstructorThrowsExceptionOnInvalidArgument()
    {
        new Stream(true);
    }

    public function testConstructorInitializesProperties()
    {
        $handle = fopen('php://temp', 'r+');
        fwrite($handle, 'data');
        $stream = new Stream($handle);
        $this->assertTrue($stream->isReadable());
        $this->assertTrue($stream->isWritable());
        $this->assertTrue($stream->isSeekable());
        $this->assertEquals('php://temp', $stream->getMetadata('uri'));
        $this->assertInternalType('array', $stream->getMetadata());
        $this->assertEquals(4, $stream->getSize());
        $this->assertFalse($stream->eof());
        $stream->close();
    }

    public function testStreamClosesHandleOnDestruct()
    {
        $handle = fopen('php://temp', 'r');
        $stream = new Stream($handle);
        unset($stream);
        $this->assertFalse(is_resource($handle));
    }

    public function testConvertsToString()
    {
        $handle = fopen('php://temp', 'w+');
        fwrite($handle, 'data');
        $stream = new Stream($handle);
        $this->assertEquals('data', (string) $stream);
        $this->assertEquals('data', (string) $stream);
        $stream->close();
    }

    public function testGetsContents()
    {
        $handle = fopen('php://temp', 'w+');
        fwrite($handle, 'data');
        $stream = new Stream($handle);
        $this->assertEquals('', $stream->getContents());
        $stream->seek(0);
        $this->assertEquals('data', $stream->getContents());
        $this->assertEquals('', $stream->getContents());
    }

    public function testChecksEof()
    {
        $handle = fopen('php://temp', 'w+');
        fwrite($handle, 'data');
        $stream = new Stream($handle);
        $this->assertFalse($stream->eof());
        $stream->read(4);
        $this->assertTrue($stream->eof());
        $stream->close();
    }

    public function testGetSize()
    {
        $size = filesize(__FILE__);
        $handle = fopen(__FILE__, 'r');
        $stream = new Stream($handle);
        $this->assertEquals($size, $stream->getSize());
        // Load from cache
        $this->assertEquals($size, $stream->getSize());
        $stream->close();
    }

    public function testEnsuresSizeIsConsistent()
    {
        $h = fopen('php://temp', 'w+');
        $this->assertEquals(3, fwrite($h, 'foo'));
        $stream = new Stream($h);
        $this->assertEquals(3, $stream->getSize());
        $this->assertEquals(4, $stream->write('test'));
        $this->assertEquals(7, $stream->getSize());
        $this->assertEquals(7, $stream->getSize());
        $stream->close();
    }

    public function testProvidesStreamPosition()
    {
        $handle = fopen('php://temp', 'w+');
        $stream = new Stream($handle);
        $this->assertEquals(0, $stream->tell());
        $stream->write('foo');
        $this->assertEquals(3, $stream->tell());
        $stream->seek(1);
        $this->assertEquals(1, $stream->tell());
        $this->assertSame(ftell($handle), $stream->tell());
        $stream->close();
    }

    public function testCanDetachStream()
    {
        $r = fopen('php://temp', 'w+');
        $stream = new Stream($r);
        $stream->write('foo');
        $this->assertTrue($stream->isReadable());
        $this->assertSame($r, $stream->detach());
        $stream->detach();

        $this->assertFalse($stream->isReadable());
        $this->assertFalse($stream->isWritable());
        $this->assertFalse($stream->isSeekable());

        $throws = function (callable $fn) use ($stream) {
            try {
                $fn($stream);
                $this->fail();
            } catch (\Exception $e) {}
        };

        $throws(function ($stream) { $stream->read(10); });
        $throws(function ($stream) { $stream->write('bar'); });
        $throws(function ($stream) { $stream->seek(10); });
        $throws(function ($stream) { $stream->tell(); });
        $throws(function ($stream) { $stream->eof(); });
        $throws(function ($stream) { $stream->getSize(); });
        $throws(function ($stream) { $stream->getContents(); });
        $this->assertSame('', (string) $stream);
        $stream->close();
    }

    public function testCloseClearProperties()
    {
        $handle = fopen('php://temp', 'r+');
        $stream = new Stream($handle);
        $stream->close();

        $this->assertFalse($stream->isSeekable());
        $this->assertFalse($stream->isReadable());
        $this->assertFalse($stream->isWritable());
        $this->assertNull($stream->getSize());
        $this->assertEmpty($stream->getMetadata());
    }

    public function testDoesNotThrowInToString()
    {
        $s = \GuzzleHttp\Psr7\stream_for('foo');
        $s = new NoSeekStream($s);
        $this->assertEquals('foo', (string) $s);
    }
}