public function testSetsGetsAuthor()
 {
     $package = new Package(static::$name);
     $package->setAuthor(static::$author, static::$author_email, static::$author_url);
     self::assertEquals(static::$author, $package->getAuthor());
     self::assertEquals(static::$author_email, $package->getAuthorEmail());
     self::assertEquals(static::$author_url, $package->getAuthorUrl());
 }