public function testGetSizeAndCount()
{
$file = new TempFile();
$file->setContent('foo');
$file->clearStatCache();
$this->assertSame(3, $file->getSize());
$this->assertSame(3, count($file));
$file->append('bar');
$file->clearStatCache();
$this->assertSame(6, $file->getSize());
$this->assertSame(6, count($file));
}