auth_fc: restore button on registration page (#53241)

src/authentic2_auth_fc/authenticators.py

@@ -79,3 +79,6 @@ class FcAuthenticator(BaseAuthenticator):
             }
         )
         return render_to_string('authentic2_auth_fc/linking.html', context, request=request)
+
+    def registration(self, request, *args, **kwargs):
+        return self.login(request, *args, **kwargs)

tests/auth_fc/test_auth_fc.py

@@ -535,3 +535,18 @@ def test_authorization_error(app, franceconnect):
     messages = response.pyquery('.messages').text()
     assert error in messages
     assert error_description not in messages
+
+
+def test_registration_page(settings, app, franceconnect, hooks):
+    assert User.objects.count() == 0
+    response = app.get('/accounts/register/?service=portail&next=/idp/')
+    response = franceconnect.login_with_fc_fixed_params(app)
+
+    # a new user has been created
+    assert User.objects.count() == 1
+
+    # we must be connected
+    assert app.session['_auth_user_id']
+
+    # hook must have been called
+    assert hooks.calls['event'][0]['kwargs']['name'] == 'fc-create'