25+5 Clock timer failing content tests #5-6

I’ve made the timer as described and am pretty happy with it, however for some reason tests 5 and 6 fail, and because many of the following tests rely on them passing they fail too.
Here’s a Link to the code

well, the tests clearly say “expected ‘05:00’ to equal '5” and “expected ‘25:00’ to equal ‘25’”

Now that you’ve pointed it out I definitely feel like an idiot. Thanks!