public function testHasMetadata()
{
$b = new BufferStream(10);
$this->assertTrue($b->isReadable());
$this->assertTrue($b->isWritable());
$this->assertFalse($b->isSeekable());
$this->assertEquals(null, $b->getMetadata('foo'));
$this->assertEquals(10, $b->getMetadata('hwm'));
$this->assertEquals(array(), $b->getMetadata());
}
