public async Task AdvancedSearchingTest1()
{
SetMockContext("jablonskim");
AdvancedSearchingModel model = new AdvancedSearchingModel()
{
Username = "******",
MinimalDate = new DateTime(2015, 12, 20),
MinimalPrice = "300",
PlaceName = "Pensjonat pod różą"
};
var result = await _controller.Advanced(model);
Assert.IsNotNull(result);
Assert.AreEqual(2, model.Offers.Count());
}