public async Task IsExistingMethod_ShouldReturnFalseIfFlightNotExists()
{
// Arrange
var context = ApplicationDbContextInMemoryFactory.InitializeContext();
var seeder = new FlightsServiceTestsSeeder();
await seeder.SeedFlightAsync(context);
var flightRepository = new EfDeletableEntityRepository <Flight>(context);
var service = new FlightsService(flightRepository);
// Act
var actualResult = service.Exists("FlightId");
var expectedResult = false;
// Assert
Assert.True(actualResult == expectedResult);
}
