public function testCleanAttributes()
{
$model = new EloquentModelStub(['foo' => '1', 'bar' => 2, 'baz' => 3]);
$model->syncOriginal();
$model->foo = 1;
$model->bar = 20;
$model->baz = 30;
$this->assertFalse($model->isClean());
$this->assertTrue($model->isClean('foo'));
$this->assertFalse($model->isClean('bar'));
$this->assertFalse($model->isClean('foo', 'bar'));
$this->assertFalse($model->isClean(['foo', 'bar']));
}
