Applied online and received a response within 2 days. Despite missing her call the first time, the recruiter was gracious and rescheduled. When we did connect, the recruiter was positive and did a good job selling the company. After a positive conversation, the recruiter scheduled a phone meeting with the hiring manager the next week. That call went so-so for me, but the manager was polite and the questions were reasonable. The questions were mostly probing about my experience, fitting for the team, with a few technical ones. There was an online coding whiteboard exercise on Google Docs. The hiring manager must have decided I wasn't a fit for the role because I received a very cold blow-off email a couple days later from the initial recruiter. That email turned an overall positive experience into a slightly negative one, but I am rating the overall experience as average since the process was efficient. Still, the experience left me sour on the company.

Write a method that detects if a string is a palindrome in the language of your choice. Write a test case to test this method. What types of issues would cause problems with this method?