public void BackToRoles_returns_roles_view()
        {
            //Arrange
            var controller = new PermissionsController(_configuration, _contextAccessor);

            //Act
            var result = controller.BackToRoles();

            //Assert
            var redirectResult = Assert.IsType <RedirectToActionResult>(result); //Asserting that the return is a View

            Assert.Equal("Roles", redirectResult.ControllerName);                //Asserting that the returned Controller is "Role"
            Assert.Equal("Index", redirectResult.ActionName);                    //Asserting that the Action Methond of the controller is "Index"
        }