How to test an application for correct encoding (e.g. UTF-8)

You’ll need to complete a few actions and gain 15 reputation points before being able to upvote. Upvoting indicates when questions and answers are useful. What’s reputation and how do I get it? Instead, you can save this post to reference later. Encoding issues are among the one topic that have bitten me most often during development.

https://stackoverflow.com/questions/478201/how-to-test-an-application-for-correct-encoding-e-g-utf-8