Wait until some action is done or until timeout is reached.

WaitUtils.cs

public static class WaitUtils
{
    /// <summary>
    /// Wait until some action is done or until timeout is reached.
    /// <code>
    /// var waitResult = await WaitUtils.WaitUntilAsync(
    /// async () =>
    /// {
    ///     // some actions
    ///     var result = await db.FirstOrDefault(q=> q.Status == Status.Success);
    ///     return result;
    /// },
    /// timeout: TimeSpan.FromSeconds(50),
    /// pollInterval: TimeSpan.FromSeconds(2)
    /// );
    /// </code>
    /// </summary>
    public static async Task<bool> WaitUntilAsync(
        Func<Task<bool>> condition,
        TimeSpan timeout,
        TimeSpan? pollInterval = null
    )
    {
        pollInterval ??= TimeSpan.FromMilliseconds(500);
        var start = DateTime.UtcNow;

        while (DateTime.UtcNow - start < timeout)
        {
            if (await condition())
            {
                return true;
            }

            await Task.Delay(pollInterval.Value);
        }

        return false;
    }
}