Vulthil.Extensions.Testing

Use Vulthil.Extensions.Testing for shared testing helpers and extension points.

When to use

• Reusing assertion and setup helpers across test suites
• Reducing repeated test composition boilerplate
• Polling asynchronous conditions during integration tests

Pattern

• Keep helpers small and composable
• Prefer intent-revealing test extensions
• Avoid embedding production logic in test helpers

Polling

Polling.WaitAsync repeatedly invokes a function returning Result / Result<T> until it succeeds or the timeout elapses. A linked CancellationTokenSource combining the supplied cancellationToken with the polling timeout is created internally, so cancellation flows uniformly through the timer and (via the token-aware overloads) into the function itself.

var result = await Polling.WaitAsync(
    TimeSpan.FromSeconds(10),
    async ct =>
    {
        var response = await httpClient.GetAsync("/api/things", ct);
        return response.IsSuccessStatusCode
            ? Result.Success()
            : Result.Failure(Error.Failure("Http", $"Status {response.StatusCode}"));
    },
    TestContext.Current.CancellationToken);

result.IsSuccess.ShouldBeTrue();

When polling times out, PollingResult.PollingError exposes the individual errors collected from each failed attempt.