public void Test_AnswersController_PostAnswer()
{
AnswersController controller = new AnswersController(_context);
var result = controller.PostAnswer(new Answer()
{
Id = Guid.NewGuid(),
Question = _context.Questions.FirstOrDefault(),
Creator = _context.Users.FirstOrDefault(),
Body = "test"
});
Assert.IsInstanceOf <ActionResult <Answer> >(result.Result);
}