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<?php
namespace GuzzleHttp\Tests\Stream;
use GuzzleHttp\Stream\LimitStream;
use GuzzleHttp\Stream\PumpStream;
use GuzzleHttp\Stream\Stream;
class PumpStreamTest extends \PHPUnit_Framework_TestCase
{
public function testHasMetadataAndSize()
{
$p = new PumpStream(function () {}, [
'metadata' => ['foo' => 'bar'],
'size' => 100
]);
$this->assertEquals('bar', $p->getMetadata('foo'));
$this->assertEquals(['foo' => 'bar'], $p->getMetadata());
$this->assertEquals(100, $p->getSize());
}
public function testCanReadFromCallable()
{
$p = Stream::factory(function ($size) {
return 'a';
});
$this->assertEquals('a', $p->read(1));
$this->assertEquals(1, $p->tell());
$this->assertEquals('aaaaa', $p->read(5));
$this->assertEquals(6, $p->tell());
}
public function testStoresExcessDataInBuffer()
{
$called = [];
$p = Stream::factory(function ($size) use (&$called) {
$called[] = $size;
return 'abcdef';
});
$this->assertEquals('a', $p->read(1));
$this->assertEquals('b', $p->read(1));
$this->assertEquals('cdef', $p->read(4));
$this->assertEquals('abcdefabc', $p->read(9));
$this->assertEquals([1, 9, 3], $called);
}
public function testInifiniteStreamWrappedInLimitStream()
{
$p = Stream::factory(function () { return 'a'; });
$s = new LimitStream($p, 5);
$this->assertEquals('aaaaa', (string) $s);
}
public function testDescribesCapabilities()
{
$p = Stream::factory(function () {});
$this->assertTrue($p->isReadable());
$this->assertFalse($p->isSeekable());
$this->assertFalse($p->isWritable());
$this->assertNull($p->getSize());
$this->assertFalse($p->write('aa'));
$this->assertEquals('', $p->getContents());
$this->assertEquals('', (string) $p);
$p->close();
$this->assertEquals('', $p->read(10));
$this->assertTrue($p->eof());
}
/**
* @expectedException \GuzzleHttp\Stream\Exception\CannotAttachException
*/
public function testCannotAttach()
{
$p = Stream::factory(function () {});
$p->attach('a');
}
}
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