🚚(backend) split users test file to improve readability

"test_api_users" was a single test file of 900+ lines.
We used gitfilesplit to split it into several shorter files
for readability.

src/backend/core/tests/users/__init__.py

@@ -0,0 +1 @@
+"""Users tests package."""

src/backend/core/tests/users/test_api_users_create.py

@@ -0,0 +1,50 @@
+"""
+Test users API endpoints in the People core app: focus on "create" action
+"""
+
+import pytest
+from rest_framework.status import (
+    HTTP_401_UNAUTHORIZED,
+    HTTP_405_METHOD_NOT_ALLOWED,
+)
+from rest_framework.test import APIClient
+
+from core import factories, models
+
+pytestmark = pytest.mark.django_db
+
+
+def test_api_users_create_anonymous():
+    """Anonymous users should not be able to create users via the API."""
+    response = APIClient().post(
+        "/api/v1.0/users/",
+        {
+            "language": "fr-fr",
+            "password": "mypassword",
+        },
+    )
+    assert response.status_code == HTTP_401_UNAUTHORIZED
+    assert "Authentication credentials were not provided." in response.content.decode(
+        "utf-8"
+    )
+    assert models.User.objects.exists() is False
+
+
+def test_api_users_create_authenticated():
+    """Authenticated users should not be able to create users via the API."""
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    response = client.post(
+        "/api/v1.0/users/",
+        {
+            "language": "fr-fr",
+            "password": "mypassword",
+        },
+        format="json",
+    )
+    assert response.status_code == HTTP_405_METHOD_NOT_ALLOWED
+    assert response.json() == {"detail": 'Method "POST" not allowed.'}
+    assert models.User.objects.exclude(id=user.id).exists() is False

src/backend/core/tests/users/test_api_users_delete.py

@@ -0,0 +1,81 @@
+"""
+Test users API endpoints in the People core app: focus on "delete" action
+"""
+
+import pytest
+from rest_framework.status import (
+    HTTP_401_UNAUTHORIZED,
+    HTTP_405_METHOD_NOT_ALLOWED,
+)
+from rest_framework.test import APIClient
+
+from core import factories, models
+
+pytestmark = pytest.mark.django_db
+
+
+def test_api_users_delete_list_anonymous():
+    """Anonymous users should not be allowed to delete a list of users."""
+    factories.UserFactory.create_batch(2)
+
+    client = APIClient()
+    response = client.delete("/api/v1.0/users/")
+
+    assert response.status_code == HTTP_401_UNAUTHORIZED
+    assert models.User.objects.count() == 2
+
+
+def test_api_users_delete_list_authenticated():
+    """Authenticated users should not be allowed to delete a list of users."""
+    user = factories.UserFactory()
+    factories.UserFactory.create_batch(2)
+
+    client = APIClient()
+    client.force_login(user)
+
+    response = client.delete(
+        "/api/v1.0/users/",
+    )
+
+    assert response.status_code == HTTP_405_METHOD_NOT_ALLOWED
+    assert models.User.objects.count() == 3
+
+
+def test_api_users_delete_anonymous():
+    """Anonymous users should not be allowed to delete a user."""
+    user = factories.UserFactory()
+
+    response = APIClient().delete(f"/api/v1.0/users/{user.id!s}/")
+
+    assert response.status_code == HTTP_401_UNAUTHORIZED
+    assert models.User.objects.count() == 1
+
+
+def test_api_users_delete_authenticated():
+    """
+    Authenticated users should not be allowed to delete a user other than themselves.
+    """
+    user, other_user = factories.UserFactory.create_batch(2)
+
+    client = APIClient()
+    client.force_login(user)
+
+    response = client.delete(f"/api/v1.0/users/{other_user.id!s}/")
+
+    assert response.status_code == HTTP_405_METHOD_NOT_ALLOWED
+    assert models.User.objects.count() == 2
+
+
+def test_api_users_delete_self():
+    """Authenticated users should not be able to delete their own user."""
+    user = factories.UserFactory()
+
+    client = APIClient()
+    client.force_login(user)
+
+    response = client.delete(
+        f"/api/v1.0/users/{user.id!s}/",
+    )
+
+    assert response.status_code == HTTP_405_METHOD_NOT_ALLOWED
+    assert models.User.objects.count() == 1