diff --git a/‎gitlab/v4/objects/projects.py‎
Lines changed: 11 additions & 1 deletion b/‎gitlab/v4/objects/projects.py‎
Lines changed: 11 additions & 1 deletion
diff --git a/‎tests/functional/api/test_groups.py‎
Lines changed: 16 additions & 0 deletions b/‎tests/functional/api/test_groups.py‎
Lines changed: 16 additions & 0 deletions
diff --git a/‎tests/functional/api/test_projects.py‎
Lines changed: 14 additions & 0 deletions b/‎tests/functional/api/test_projects.py‎
Lines changed: 14 additions & 0 deletions
diff --git a/‎tests/unit/objects/test_groups.py‎
Lines changed: 23 additions & 2 deletions b/‎tests/unit/objects/test_groups.py‎
Lines changed: 23 additions & 2 deletions
diff --git a/‎tests/unit/objects/test_projects.py‎
Lines changed: 25 additions & 3 deletions b/‎tests/unit/objects/test_projects.py‎
Lines changed: 25 additions & 3 deletions
@@ -1,3 +1,4 @@
+import warnings
 from typing import Any, Callable, cast, Dict, List, Optional, TYPE_CHECKING, Union
 
 import requests
@@ -526,7 +527,7 @@ def mirror_pull(self, **kwargs: Any) -> None:
 
     @cli.register_custom_action("Project", ("to_namespace",))
     @exc.on_http_error(exc.GitlabTransferProjectError)
-    def transfer_project(self, to_namespace: str, **kwargs: Any) -> None:
+    def transfer(self, to_namespace: str, **kwargs: Any) -> None:
         """Transfer a project to the given namespace ID
 
         Args:
@@ -543,6 +544,15 @@ def transfer_project(self, to_namespace: str, **kwargs: Any) -> None:
             path, post_data={"namespace": to_namespace}, **kwargs
         )
 
+    @cli.register_custom_action("Project", ("to_namespace",))
+    def transfer_project(self, *args: Any, **kwargs: Any) -> None:
+        warnings.warn(
+            "The project.transfer_project() method is deprecated and will be "
+            "removed in a future version. Use project.transfer() instead.",
+            DeprecationWarning,
+        )
+        return self.transfer(*args, **kwargs)
+
     @cli.register_custom_action("Project", ("ref_name", "job"), ("job_token",))
     @exc.on_http_error(exc.GitlabGetError)
     def artifacts(
 
@@ -231,3 +231,19 @@ def test_group_hooks(group):
     hook = group.hooks.get(hook.id)
     assert hook.note_events is True
     hook.delete()
+
+
+@pytest.mark.skip(reason="Pending #1807")
+def test_group_transfer(gl, group):
+    transfer_group = gl.groups.create({"name": "transfer-test-group"})
+    assert group.namespace["path"] != group.full_path
+
+    transfer_group.transfer(group.id)
+
+    transferred_group = gl.projects.get(transfer_group.id)
+    assert transferred_group.namespace["path"] == group.full_path
+
+    transfer_group.transfer()
+
+    transferred_group = gl.projects.get(transfer_group.id)
+    assert transferred_group.path == transferred_group.full_path
@@ -329,3 +329,17 @@ def test_project_groups_list(gl, group):
     groups = project.groups.list()
     group_ids = set([x.id for x in groups])
     assert set((group.id, group2.id)) == group_ids
+
+
+def test_project_transfer(gl, project, group):
+    assert project.namespace["path"] != group.full_path
+    project.transfer_project(group.id)
+
+    project = gl.projects.get(project.id)
+    assert project.namespace["path"] == group.full_path
+
+    gl.auth()
+    project.transfer_project(gl.user.username)
+
+    project = gl.projects.get(project.id)
+    assert project.namespace["path"] == gl.user.username
@@ -10,6 +10,7 @@
 import gitlab
 from gitlab.v4.objects import GroupDescendantGroup, GroupSubgroup
 
+content = {"name": "name", "id": 1, "path": "path"}
 subgroup_descgroup_content = [
     {
         "id": 2,
@@ -41,8 +42,6 @@
 
 @pytest.fixture
 def resp_groups():
-    content = {"name": "name", "id": 1, "path": "path"}
-
     with responses.RequestsMock(assert_all_requests_are_fired=False) as rsps:
         rsps.add(
             method=responses.GET,
@@ -96,6 +95,22 @@ def resp_create_import(accepted_content):
         yield rsps
 
 
+@pytest.fixture
+def resp_transfer_group():
+    with responses.RequestsMock() as rsps:
+        rsps.add(
+            method=responses.PUT,
+            url="http://localhost/api/v4/groups/1/transfer",
+            json=content,
+            content_type="application/json",
+            status=200,
+            match=[
+                responses.matchers.json_params_matcher({"namespace": "test-namespace"})
+            ],
+        )
+        yield rsps
+
+
 def test_get_group(gl, resp_groups):
     data = gl.groups.get(1)
     assert isinstance(data, gitlab.v4.objects.Group)
@@ -153,3 +168,9 @@ def test_refresh_group_import_status(group, resp_groups):
     group_import = group.imports.get()
     group_import.refresh()
     assert group_import.import_status == "finished"
+
+
+@pytest.mark.skip("Pending #1807")
+def test_transfer_group(gl, resp_transfer_group):
+    group = gl.groups.get(1, lazy=True)
+    group.transfer("test-namespace")
@@ -54,6 +54,22 @@ def resp_import_bitbucket_server():
         yield rsps
 
 
+@pytest.fixture
+def resp_transfer_project():
+    with responses.RequestsMock() as rsps:
+        rsps.add(
+            method=responses.PUT,
+            url="http://localhost/api/v4/projects/1/transfer",
+            json=project_content,
+            content_type="application/json",
+            status=200,
+            match=[
+                responses.matchers.json_params_matcher({"namespace": "test-namespace"})
+            ],
+        )
+        yield rsps
+
+
 def test_get_project(gl, resp_get_project):
     data = gl.projects.get(1)
     assert isinstance(data, Project)
@@ -217,9 +233,15 @@ def test_delete_project_push_rule(gl):
     pass
 
 
-@pytest.mark.skip(reason="missing test")
-def test_transfer_project(gl):
-    pass
+def test_transfer_project(gl, resp_transfer_project):
+    project = gl.projects.get(1, lazy=True)
+    project.transfer("test-namespace")
+
+
+def test_transfer_project_deprecated_warns(gl, resp_transfer_project):
+    project = gl.projects.get(1, lazy=True)
+    with pytest.warns(DeprecationWarning):
+        project.transfer_project("test-namespace")
 
 
 @pytest.mark.skip(reason="missing test")