public async Task TestConcurrentAccountRequestsAsync()
{
var logger = new MockLogger();
var cosmosState = new MockCosmosState(logger);
var client = new MockImageGalleryClient(cosmosState, logger);
await client.InitializeCosmosDbAsync();
// Try create a new account, and wait for it to be created before proceeding with the test.
var account = new Account("0", "alice", "*****@*****.**");
var result = await client.CreateAccountAsync(account);
Assert.IsTrue(result);
var updatedAccount = new Account("0", "alice", "*****@*****.**");
// Try update the account and delete it concurrently, which can cause a data race and a bug.
var updateTask = client.UpdateAccountAsync(updatedAccount);
var deleteTask = client.DeleteAccountAsync(updatedAccount.Id);
// Wait for the two concurrent requests to complete.
await Task.WhenAll(updateTask, deleteTask);
// Bug: the update request can nondeterministically fail due to an unhandled exception (500 error code).
// See the `Update` handler in the account controller for more info.
_ = updateTask.Result;
var deleteAccountRes = deleteTask.Result;
// deleteAccountRes.EnsureSuccessStatusCode();
Assert.IsTrue(deleteAccountRes);
}
