Increase coverage.

see #980

modoboa/core/mocks.py

@@ -27,3 +27,15 @@ def modo_api_instance_create(url, request):
 def modo_api_instance_update(url, request):
     """Simulate successful update."""
     return {"status_code": 200}
+
+
+@httmock.urlmatch(
+    netloc=r"api\.modoboa\.org$", path=r"^/1/versions/", method="get")
+def modo_api_versions(url, request):
+    """Simulate versions check."""
+    return {
+        "status_code": 200,
+        "content": [
+            {"name": "modoboa", "version": "9.0.0", "url": ""},
+        ]
+    }

modoboa/core/tests.py

@@ -254,5 +254,11 @@ class APICommunicationTestCase(ModoTestCase):
         with httmock.HTTMock(
                 mocks.modo_api_instance_search,
                 mocks.modo_api_instance_create,
-                mocks.modo_api_instance_update):
+                mocks.modo_api_instance_update,
+                mocks.modo_api_versions):
             management.call_command("communicate_with_public_api")
+        self.assertEqual(models.LocalConfig.objects.first().api_pk, 100)
+
+        url = reverse("core:information")
+        response = self.ajax_request("get", url)
+        self.assertIn("9.0.0", response["content"])