Fix failing test

Signed-off-by: Lukasz Gryglicki <[email protected]>

Author: lukaszgryglicki

cla-backend/cla/tests/unit/test_github_models.py

@@ -55,6 +55,7 @@ def test_get_co_author_commits_invalid_gh_email(self, mock_github_instance):
         commit = MagicMock()
         commit.sha = "fake_sha"
         mock_github_instance.return_value.get_github_user_by_email.return_value = None
+        mock_github_instance.return_value.get_github_user_by_login.return_value = None
         pr = 1
         installation_id = 123
 
@@ -74,6 +75,7 @@ def test_get_co_author_commits_valid_gh_email(self, mock_github_instance):
         co_author = ("co_author", "co_author_email.gmail.com")
         commit = MagicMock()
         commit.sha = "fake_sha"
+        mock_github_instance.return_value.get_github_user_by_login.return_value = None
         mock_github_instance.return_value.get_github_user_by_email.return_value = Mock(
             id=123, login="co_author_login"
         )