public void TestGetAllFollower()
{
IEnumerable <User> ienumableUsers = new List <User>()
{
user, userSecond
};
mockFollowRepository.Setup(x => x.GetAllFollower(It.IsAny <string>())).Returns(ienumableUsers);
var followService = new FollowService(mockFollowRepository.Object);
IEnumerable <User> ienumableReturn = followService.GetAllFollower("5d111299f3b75e0001f4ed78");
User userActual = ienumableReturn.FirstOrDefault();
Assert.AreEqual(userActual, user);
}