Capital One Software Engineering Manager interview questions

This is my first, and I hope the last review of an interview process. It was absolutely wthe worst experience, so I felt compelled to post the review. I applied on Capital One wesbite for the Software Engineering Manager position in New York. The recruiter called me to discuss the process. She sent me a hackerank test -- the test was to write a web service in Go lang so it passes the included unit tests, and to add at least one new test case. The test was rather easy. I submitted the test, and never heard back. Sent two emails...nothing. I assume I failed the test, but to have spent around 4 hours on the test and not get ANY response was frustrating to say the least. Clearly, the recruiter I was working was very unprofessional.