TikTok prolong ‘testing’, three-minute videos TikTok allows all creators to upload videos up to a minute in length. It’s proven to be a successful length — longer than a Vine, shorter than most YouTube videos.   Brevity is the soul of wit — and the heart of TikTok — but the company wants to see if giving people the ability to record longer videos is something its creators want to explore. The company is reportedly rolling out the ability to record videos up to three minutes in length, according to social media consultant Matt Navarra. Navarra tweeted a screenshot of…