/**
  * @test
  */
 public function testAppend()
 {
     $p = new Network('uuid-value');
     $list = new NetworkList(array($p, $p));
     $list->append($p);
     foreach ($list as $v) {
         $this->assertSame($p, $v);
     }
     $this->assertEquals('[{"uuid":"uuid-value"},{"uuid":"uuid-value"},{"uuid":"uuid-value"}]', $list->toJson());
 }