/**
* @depends testSeek
*/
public function testValid(CsvReader $reader)
{
$this->assertTrue($reader->valid());
$reader->seek($reader->count());
$reader->next();
$this->assertFalse($reader->valid());
return $reader;
}
/**
* {@inheritdoc}
*/
public function count()
{
if (null === $this->count && $this->file) {
$length = $this->length;
$this->length = 0;
$this->count = parent::count();
$this->length = $length;
}
return $this->count ?: 0;
}