public async Task CancelRental_WhenCancelARental_ShouldUpdateCanceledProp()
{
_dbContext.Rentals.Add(new Rental
{
ClientId = 2,
VehicleId = 5,
StartDate = new DateTime(2021, 4, 1),
EndDate = new DateTime(2021, 4, 10),
});
_dbContext.SaveChanges();
await _sut.CancelRental(1);
var rentalAdded = await _dbContext.Rentals.FirstOrDefaultAsync();
rentalAdded.Id.Should().Be(1);
rentalAdded.ClientId.Should().Be(2);
rentalAdded.VehicleId.Should().Be(5);
rentalAdded.StartDate.Should().Be(new DateTime(2021, 4, 1));
rentalAdded.EndDate.Should().Be(new DateTime(2021, 4, 10));
rentalAdded.Canceled.Should().BeTrue();
}