public async Task ShouldListAllStudentUids()
{
var mockRepo = new Mock <IDataRepository>();
mockRepo.Setup(repo => repo.StudentListAsync()).
ReturnsAsync(GetStudentData());
StudentsController controller = new StudentsController(mockRepo.Object);
var result = await controller.GetAllStudentUids();
Assert.IsInstanceOfType(result.Result, typeof(OkObjectResult));
var okResult = result.Result as OkObjectResult;
var uids = okResult.Value as List <string>;
Assert.AreEqual(2, uids.Count);
Assert.AreEqual("mwj7", uids[0]);
Assert.AreEqual("dop2", uids[1]);
}