public void CheckFollowerExistsTest()
{
// act
var parent = new User();
var follower = new User { UserId = Guid.NewGuid() };
var followers = new List<User> { follower };
_userRepositoryMock.Setup(x => x.GetChildren(parent)).Returns(followers);
var userManager = new UserManager(_userRepositoryMock.Object);
// actual
userManager.CheckFollowerExists(parent, follower);
// assert
// never reached
}
