It looks like Samsung isn't the only smartphone manufacturer to post a video of their phone getting bend-tested. The folks at OnePlus shared one for their One. As you can see in the above video, the OnePlus One holds up well to a battery of tests, including some pseudo-butt-simulations, and it comes through just fine.
The video also includes a few other tests to satisfy any latent curiosity. It's very cool of OnePlus to "invite" us into their testing facilities...