public function testQueryingOnChild()
 {
     (new MotorVehicle())->save();
     (new Car())->save();
     (new Truck())->save();
     (new Truck())->save();
     (new Bike())->save();
     $results = MotorVehicle::all();
     $this->assertEquals(4, count($results));
     $this->assertInstanceOf('Phaza\\SingleTableInheritance\\Tests\\Fixtures\\MotorVehicle', $results[0]);
     $this->assertInstanceOf('Phaza\\SingleTableInheritance\\Tests\\Fixtures\\Car', $results[1]);
     $this->assertInstanceOf('Phaza\\SingleTableInheritance\\Tests\\Fixtures\\Truck', $results[2]);
     $this->assertInstanceOf('Phaza\\SingleTableInheritance\\Tests\\Fixtures\\Truck', $results[3]);
 }
 public function testGetAllPersistedOfChild()
 {
     $a = MotorVehicle::getAllPersistedAttributes();
     sort($a);
     $this->assertEquals(['color', 'fuel', 'owner_id'], $a);
 }