feat(users): add follow/unfollow APIfeat/user-follow-api

3 files changed, 138 insertions, 0 deletions

diff --git a/gitlab/exceptions.py b/gitlab/exceptions.py
index fd2ff2a..f5b3600 100644
--- a/gitlab/exceptions.py
+++ b/gitlab/exceptions.py
@@ -261,6 +261,14 @@ class GitlabLicenseError(GitlabOperationError):
     pass
 
 
+class GitlabFollowError(GitlabOperationError):
+    pass
+
+
+class GitlabUnfollowError(GitlabOperationError):
+    pass
+
+
 def on_http_error(error):
     """Manage GitlabHttpError exceptions.
 
diff --git a/gitlab/tests/objects/test_users.py b/gitlab/tests/objects/test_users.py
index f84e877..e46a315 100644
--- a/gitlab/tests/objects/test_users.py
+++ b/gitlab/tests/objects/test_users.py
@@ -108,6 +108,72 @@ def resp_delete_user_identity(no_content):
         yield rsps
 
 
+@pytest.fixture
+def resp_follow_unfollow():
+    user = {
+        "id": 1,
+        "username": "john_smith",
+        "name": "John Smith",
+        "state": "active",
+        "avatar_url": "http://localhost:3000/uploads/user/avatar/1/cd8.jpeg",
+        "web_url": "http://localhost:3000/john_smith",
+    }
+    with responses.RequestsMock() as rsps:
+        rsps.add(
+            method=responses.POST,
+            url="http://localhost/api/v4/users/1/follow",
+            json=user,
+            content_type="application/json",
+            status=201,
+        )
+        rsps.add(
+            method=responses.POST,
+            url="http://localhost/api/v4/users/1/unfollow",
+            json=user,
+            content_type="application/json",
+            status=201,
+        )
+        yield rsps
+
+
+@pytest.fixture
+def resp_followers_following():
+    content = [
+        {
+            "id": 2,
+            "name": "Lennie Donnelly",
+            "username": "evette.kilback",
+            "state": "active",
+            "avatar_url": "https://www.gravatar.com/avatar/7955171a55ac4997ed81e5976287890a?s=80&d=identicon",
+            "web_url": "http://127.0.0.1:3000/evette.kilback",
+        },
+        {
+            "id": 4,
+            "name": "Serena Bradtke",
+            "username": "cammy",
+            "state": "active",
+            "avatar_url": "https://www.gravatar.com/avatar/a2daad869a7b60d3090b7b9bef4baf57?s=80&d=identicon",
+            "web_url": "http://127.0.0.1:3000/cammy",
+        },
+    ]
+    with responses.RequestsMock() as rsps:
+        rsps.add(
+            method=responses.GET,
+            url="http://localhost/api/v4/users/1/followers",
+            json=content,
+            content_type="application/json",
+            status=200,
+        )
+        rsps.add(
+            method=responses.GET,
+            url="http://localhost/api/v4/users/1/following",
+            json=content,
+            content_type="application/json",
+            status=200,
+        )
+        yield rsps
+
+
 def test_get_user(gl, resp_get_user):
     user = gl.users.get(1)
     assert isinstance(user, User)
@@ -135,3 +201,17 @@ def test_user_activate_deactivate(user, resp_activate):
 
 def test_delete_user_identity(user, resp_delete_user_identity):
     user.identityproviders.delete("test_provider")
+
+
+def test_user_follow_unfollow(user, resp_follow_unfollow):
+    user.follow()
+    user.unfollow()
+
+
+def test_list_followers(user, resp_followers_following):
+    followers = user.followers_users.list()
+    followings = user.following_users.list()
+    assert isinstance(followers[0], User)
+    assert followers[0].id == 2
+    assert isinstance(followings[0], User)
+    assert followings[1].id == 4
diff --git a/gitlab/v4/objects/users.py b/gitlab/v4/objects/users.py
index c332435..530383d 100644
--- a/gitlab/v4/objects/users.py
+++ b/gitlab/v4/objects/users.py
@@ -106,6 +106,8 @@ class User(SaveMixin, ObjectDeleteMixin, RESTObject):
     _managers = (
         ("customattributes", "UserCustomAttributeManager"),
         ("emails", "UserEmailManager"),
+        ("followers_users", "UserFollowersManager"),
+        ("following_users", "UserFollowingManager"),
         ("events", "UserEventManager"),
         ("gpgkeys", "UserGPGKeyManager"),
         ("identityproviders", "UserIdentityProviderManager"),
@@ -138,6 +140,42 @@ class User(SaveMixin, ObjectDeleteMixin, RESTObject):
         return server_data
 
     @cli.register_custom_action("User")
+    @exc.on_http_error(exc.GitlabFollowError)
+    def follow(self, **kwargs):
+        """Follow the user.
+
+        Args:
+            **kwargs: Extra options to send to the server (e.g. sudo)
+
+        Raises:
+            GitlabAuthenticationError: If authentication is not correct
+            GitlabFollowError: If the user could not be followed
+
+        Returns:
+            dict: The new object data (*not* a RESTObject)
+        """
+        path = "/users/%s/follow" % self.id
+        return self.manager.gitlab.http_post(path, **kwargs)
+
+    @cli.register_custom_action("User")
+    @exc.on_http_error(exc.GitlabUnfollowError)
+    def unfollow(self, **kwargs):
+        """Unfollow the user.
+
+        Args:
+            **kwargs: Extra options to send to the server (e.g. sudo)
+
+        Raises:
+            GitlabAuthenticationError: If authentication is not correct
+            GitlabUnfollowError: If the user could not be followed
+
+        Returns:
+            dict: The new object data (*not* a RESTObject)
+        """
+        path = "/users/%s/unfollow" % self.id
+        return self.manager.gitlab.http_post(path, **kwargs)
+
+    @cli.register_custom_action("User")
     @exc.on_http_error(exc.GitlabUnblockError)
     def unblock(self, **kwargs):
         """Unblock the user.
@@ -454,3 +492,15 @@ class UserProjectManager(ListMixin, CreateMixin, RESTManager):
         else:
             path = "/users/%s/projects" % kwargs["user_id"]
         return ListMixin.list(self, path=path, **kwargs)
+
+
+class UserFollowersManager(ListMixin, RESTManager):
+    _path = "/users/%(user_id)s/followers"
+    _obj_cls = User
+    _from_parent_attrs = {"user_id": "id"}
+
+
+class UserFollowingManager(ListMixin, RESTManager):
+    _path = "/users/%(user_id)s/following"
+    _obj_cls = User
+    _from_parent_attrs = {"user_id": "id"}