public function testHardlink()
{
$file1 = new TempFile();
$path = $file1->getPath() . '-hardlink';
$file1->createHardLink($path);
$file1->setContent('foo');
$file2 = new File($path);
$this->assertSame('foo', $file2->getContent());
$file1->append('bar');
$this->assertSame('foobar', $file2->getContent());
}
