public function testRead()
{
$stream = new Yamdi_InputStream($this->testFileName);
$this->assertEqual($stream->getPosition(), 0);
$this->assertFalse($stream->isEnd());
$bytes = $stream->read(3);
$this->assertEqual($bytes, '123');
$this->assertEqual($stream->getPosition(), 3);
$this->assertEqual($bytes, '123');
$this->assertFalse($stream->isEnd());
$stream->seek(+2);
$this->assertEqual($stream->getPosition(), 5);
$this->assertFalse($stream->isEnd());
$bytes = $stream->read(1);
$this->assertEqual($bytes, 'c');
$this->assertEqual($stream->getPosition(), 6);
$this->assertFalse($stream->isEnd());
/* trying to read beyont the eof */
$bytes = $stream->read(2);
$this->assertTrue($stream->isEnd());
// end of file is reached
$this->assertEqual($stream->getPosition(), 6);
// position is not changed
$this->assertEqual($bytes, '');
// void is read
$stream->close();
}
