Can I replace a step attachment if it has the same file name?

[kunalashar25]

I'm using Reqnroll with Allure and attaching JSON at the step level. Some steps have retry logic (if assertion fails), and when retried, the same file gets attached multiple times. Is there a way to replace the attachment if it has the same file name, instead of adding it again?

Image for reference

[delatrie]

Hi, @kunalashar25

You may post-process the step result in an AfterStep hook:

[Binding]
public static class Hooks
{
    [AfterStep]
    public static void DeduplicateAttachments()
    {
        AllureLifecycle.Instance.UpdateStep(s =>
        {
            var uniqueAttachments = new HashSet<string>();
            s.attachments = s.attachments.Reverse<Attachment>().Where(a =>
            {
                if (uniqueAttachments.Contains(a.name))
                {
                    return false;
                }

                uniqueAttachments.Add(a.name);
                return true;
            }).Reverse().ToList();
        });
    }
}

The hook above keeps the most recently added attachments. If you prefer keeping the earliest ones, remove two .Reverse calls.

Another option would be to wrap each attempt in a sub-step, but that may require execution context manipulations, which makes the task trickier and also depends on how exactly you run retries.