/**
  * @test
  * @depends URI\GenerateTest::Reset
  */
 public function Query_Exists()
 {
     // Test both when there is and isn't pre-existing data
     $uri1 = new \uri('example.com');
     $uri2 = new \uri('https://*****:*****@example.com:777/path/to/script.php?query=str#fragment');
     $uri3 = new \uri('google.com?empty');
     // Check For Errors
     $this->assertEmpty($uri1->error);
     $this->assertEmpty($uri2->error);
     $this->assertEmpty($uri3->error);
     $this->assertFalse($uri1->query_exists('a'));
     $this->assertTrue($uri2->query_exists('query'));
     $this->assertTrue($uri3->query_exists('empty'));
 }