function testAll()
{
$file = new SimpleFile('filename.txt', 'contents', 'text/plain');
$this->assertEquals('filename.txt', $file->getName());
$this->assertEquals('contents', $file->get());
$this->assertEquals(8, $file->getSize());
$this->assertEquals('"' . sha1('contents') . '"', $file->getETag());
$this->assertEquals('text/plain', $file->getContentType());
}