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<?php
namespace GuzzleHttp\Tests\Psr7;
use GuzzleHttp\Psr7\AppendStream;
use GuzzleHttp\Psr7;
class AppendStreamTest extends \PHPUnit_Framework_TestCase
{
/**
* @expectedException \InvalidArgumentException
* @expectedExceptionMessage Each stream must be readable
*/
public function testValidatesStreamsAreReadable()
{
$a = new AppendStream();
$s = $this->getMockBuilder('Psr\Http\Message\StreamInterface')
->setMethods(['isReadable'])
->getMockForAbstractClass();
$s->expects($this->once())
->method('isReadable')
->will($this->returnValue(false));
$a->addStream($s);
}
/**
* @expectedException \RuntimeException
* @expectedExceptionMessage The AppendStream can only seek with SEEK_SET
*/
public function testValidatesSeekType()
{
$a = new AppendStream();
$a->seek(100, SEEK_CUR);
}
/**
* @expectedException \RuntimeException
* @expectedExceptionMessage Unable to seek stream 0 of the AppendStream
*/
public function testTriesToRewindOnSeek()
{
$a = new AppendStream();
$s = $this->getMockBuilder('Psr\Http\Message\StreamInterface')
->setMethods(['isReadable', 'rewind', 'isSeekable'])
->getMockForAbstractClass();
$s->expects($this->once())
->method('isReadable')
->will($this->returnValue(true));
$s->expects($this->once())
->method('isSeekable')
->will($this->returnValue(true));
$s->expects($this->once())
->method('rewind')
->will($this->throwException(new \RuntimeException()));
$a->addStream($s);
$a->seek(10);
}
public function testSeeksToPositionByReading()
{
$a = new AppendStream([
Psr7\stream_for('foo'),
Psr7\stream_for('bar'),
Psr7\stream_for('baz'),
]);
$a->seek(3);
$this->assertEquals(3, $a->tell());
$this->assertEquals('bar', $a->read(3));
$a->seek(6);
$this->assertEquals(6, $a->tell());
$this->assertEquals('baz', $a->read(3));
}
public function testDetachesEachStream()
{
$s1 = Psr7\stream_for('foo');
$s2 = Psr7\stream_for('bar');
$a = new AppendStream([$s1, $s2]);
$this->assertSame('foobar', (string) $a);
$a->detach();
$this->assertSame('', (string) $a);
$this->assertSame(0, $a->getSize());
}
public function testClosesEachStream()
{
$s1 = Psr7\stream_for('foo');
$a = new AppendStream([$s1]);
$a->close();
$this->assertSame('', (string) $a);
}
/**
* @expectedExceptionMessage Cannot write to an AppendStream
* @expectedException \RuntimeException
*/
public function testIsNotWritable()
{
$a = new AppendStream([Psr7\stream_for('foo')]);
$this->assertFalse($a->isWritable());
$this->assertTrue($a->isSeekable());
$this->assertTrue($a->isReadable());
$a->write('foo');
}
public function testDoesNotNeedStreams()
{
$a = new AppendStream();
$this->assertEquals('', (string) $a);
}
public function testCanReadFromMultipleStreams()
{
$a = new AppendStream([
Psr7\stream_for('foo'),
Psr7\stream_for('bar'),
Psr7\stream_for('baz'),
]);
$this->assertFalse($a->eof());
$this->assertSame(0, $a->tell());
$this->assertEquals('foo', $a->read(3));
$this->assertEquals('bar', $a->read(3));
$this->assertEquals('baz', $a->read(3));
$this->assertSame('', $a->read(1));
$this->assertTrue($a->eof());
$this->assertSame(9, $a->tell());
$this->assertEquals('foobarbaz', (string) $a);
}
public function testCanDetermineSizeFromMultipleStreams()
{
$a = new AppendStream([
Psr7\stream_for('foo'),
Psr7\stream_for('bar')
]);
$this->assertEquals(6, $a->getSize());
$s = $this->getMockBuilder('Psr\Http\Message\StreamInterface')
->setMethods(['isSeekable', 'isReadable'])
->getMockForAbstractClass();
$s->expects($this->once())
->method('isSeekable')
->will($this->returnValue(null));
$s->expects($this->once())
->method('isReadable')
->will($this->returnValue(true));
$a->addStream($s);
$this->assertNull($a->getSize());
}
public function testCatchesExceptionsWhenCastingToString()
{
$s = $this->getMockBuilder('Psr\Http\Message\StreamInterface')
->setMethods(['isSeekable', 'read', 'isReadable', 'eof'])
->getMockForAbstractClass();
$s->expects($this->once())
->method('isSeekable')
->will($this->returnValue(true));
$s->expects($this->once())
->method('read')
->will($this->throwException(new \RuntimeException('foo')));
$s->expects($this->once())
->method('isReadable')
->will($this->returnValue(true));
$s->expects($this->any())
->method('eof')
->will($this->returnValue(false));
$a = new AppendStream([$s]);
$this->assertFalse($a->eof());
$this->assertSame('', (string) $a);
}
public function testCanDetach()
{
$s = new AppendStream();
$s->detach();
}
public function testReturnsEmptyMetadata()
{
$s = new AppendStream();
$this->assertEquals([], $s->getMetadata());
$this->assertNull($s->getMetadata('foo'));
}
}
|