def METHOD_NAME(self, reddit):
    reddit.read_only = False
    unpinned_posts = set()
    for post in reddit.user.me().new(limit=4):
        reddit.user.pin(post, state=False)
        unpinned_posts.add(post.title)
    new_posts = {submission.title for submission in reddit.user.me().new(limit=4)}
    assert unpinned_posts != new_posts