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Add buffered stream #52

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Merged
merged 4 commits into from
Aug 7, 2016
Merged

Add buffered stream #52

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c031837
Add buffered stream
joelwurtz Aug 4, 2016
15330e6
Fix cs
joelwurtz Aug 4, 2016
0b5ce24
Fix edge case and better documentation
joelwurtz Aug 5, 2016
b103e85
Add comment for BC layer on PHP5
joelwurtz Aug 5, 2016
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184 changes: 184 additions & 0 deletions spec/Stream/BufferedStreamSpec.php
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Original file line number Diff line number Diff line change
@@ -0,0 +1,184 @@
<?php

namespace spec\Http\Message\Stream;

use PhpSpec\ObjectBehavior;
use Psr\Http\Message\StreamInterface;

class BufferedStreamSpec extends ObjectBehavior
{
public function let(StreamInterface $stream)
{
$this->beConstructedWith($stream);

$stream->getSize()->willReturn(null);
}

public function it_is_castable_to_string(StreamInterface $stream)
{
$eofCounter = 0;
$stream->eof()->will(function () use(&$eofCounter) {
return (++$eofCounter > 1);
});

$stream->read(8192)->willReturn('foo');

$this->__toString()->shouldReturn('foo');
}

public function it_detachs(StreamInterface $stream)
{
$stream->eof()->willReturn(true);
$stream->read(8192)->willReturn('');
$stream->close()->shouldBeCalled();

$this->detach()->shouldBeResource();
$this->detach()->shouldBeNull();
}

public function it_gets_size(StreamInterface $stream)
{
$stream->eof()->willReturn(false);
$this->getSize()->shouldReturn(null);

$eofCounter = 0;
$stream->eof()->will(function () use(&$eofCounter) {
return (++$eofCounter > 1);
});

$stream->read(8192)->willReturn('foo');

$this->getContents()->shouldReturn('foo');
$this->getSize()->shouldReturn(3);
}

public function it_tells(StreamInterface $stream)
{
$this->tell()->shouldReturn(0);

$eofCounter = 0;
$stream->eof()->will(function () use(&$eofCounter) {
return (++$eofCounter > 1);
});

$stream->read(8192)->willReturn('foo');
$this->getContents()->shouldReturn('foo');
$this->tell()->shouldReturn(3);
}

public function it_eof(StreamInterface $stream)
{
// Case when underlying is false
$stream->eof()->willReturn(false);
$this->eof()->shouldReturn(false);

// Case when sync and underlying is true
$stream->eof()->willReturn(true);
$this->eof()->shouldReturn(true);

// Case not sync but underlying is true
$eofCounter = 0;
$stream->eof()->will(function () use(&$eofCounter) {
return (++$eofCounter > 1);
});

$stream->read(8192)->willReturn('foo');

$this->getContents()->shouldReturn('foo');
$this->seek(0);

$stream->eof()->willReturn(true);
$this->eof()->shouldReturn(false);
}

public function it_is_seekable(StreamInterface $stream)
{
$this->isSeekable()->shouldReturn(true);
}

public function it_seeks(StreamInterface $stream)
{
$this->seek(0);
$this->tell()->shouldReturn(0);

$eofCounter = 0;
$stream->eof()->will(function () use(&$eofCounter) {
return (++$eofCounter > 1);
});

$stream->read(8192)->willReturn('foo');

$this->getContents()->shouldReturn('foo');
$this->seek(2);
$this->tell()->shouldReturn(2);
}

public function it_rewinds(StreamInterface $stream)
{
$this->rewind();
$this->tell()->shouldReturn(0);

$eofCounter = 0;
$stream->eof()->will(function () use(&$eofCounter) {
return (++$eofCounter > 1);
});

$stream->read(8192)->willReturn('foo');

$this->getContents()->shouldReturn('foo');
$this->tell()->shouldReturn(3);
$this->rewind();
$this->tell()->shouldReturn(0);
}

public function it_is_not_writable(StreamInterface $stream)
{
$this->isWritable()->shouldReturn(false);
$this->shouldThrow('\RuntimeException')->duringWrite('foo');
}

public function it_is_readable(StreamInterface $stream)
{
$this->isReadable()->shouldReturn(true);
}

public function it_reads(StreamInterface $stream)
{
$eofCounter = 0;
$stream->eof()->will(function () use(&$eofCounter) {
return (++$eofCounter > 1);
});

$stream->read(3)->willReturn('foo');
$this->read(3)->shouldReturn('foo');

$stream->read(3)->willReturn('bar');
$this->read(3)->shouldReturn('bar');

$this->rewind();
$this->read(4)->shouldReturn('foob');

$stream->read(3)->willReturn('baz');
$this->read(5)->shouldReturn('arbaz');
}

public function it_get_contents(StreamInterface $stream)
{
$eofCounter = 0;
$stream->eof()->will(function () use(&$eofCounter) {
return (++$eofCounter > 1);
});

$stream->read(8192)->willReturn('foo');

$this->getContents()->shouldReturn('foo');
$this->eof()->shouldReturn(true);
}

public function it_get_metadatas(StreamInterface $stream)
{
$this->getMetadata()->shouldBeArray();
$this->getMetadata('unexistant')->shouldBeNull();
$this->getMetadata('stream_type')->shouldReturn('TEMP');
}
}
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