public async Task FileRepository_FileChanged_UpdatesData()
{
IClient testClient = CreateClient();
IProduct product = CreateProduct();
System.IO.File.Delete(TEST_FILE);
using FileRepository repo = new FileRepository();
Assert.IsTrue(repo.OpenRepository(TEST_FILE).GetAwaiter().GetResult());
await repo.CreateClient(
testClient.Username,
testClient.FirstName,
testClient.LastName,
testClient.Street,
testClient.StreetNumber,
testClient.PhoneNumber);
await repo.CreateProduct(product.Name, product.Price, product.ProductType);
string fileData = System.IO.File.ReadAllText(TEST_FILE);
await repo.RemoveClient(testClient);
await repo.RemoveProduct((await repo.GetAllProducts()).First());
Assert.AreEqual(0, (await repo.GetAllClients()).Count);
Assert.AreEqual(0, (await repo.GetAllProducts()).Count);
bool clientsReplaced = false;
bool productsReplaced = false;
TestObserver obs = new TestObserver();
using IDisposable clientUnsubscriber = repo.Subscribe((IObserver <DataChanged <IClient> >)obs);
using IDisposable productUnsubscriber = repo.Subscribe((IObserver <DataChanged <IProduct> >)obs);
System.IO.File.WriteAllText(TEST_FILE, fileData);
SpinWait.SpinUntil(() => {
clientsReplaced |= obs.ClientsReplaced();
productsReplaced |= obs.ProductsReplaced();
return(clientsReplaced && productsReplaced);
}, UPDATE_TIMEOUT);
Assert.IsTrue(clientsReplaced);
Assert.IsTrue(productsReplaced);
}