Creating a random GUID is not as straightforward as setting all 128 bits randomly. Ref: https://en.wikipedia.org/wiki/Universally_unique_identifier#Version_4_.28random.29

nunit/nunit3-vs-adapter#331 is an example of where someone needs random GUIDs using the repeatable randomness from TestContext.CurrentContext.Random.