- Improve the since logic for no release exist.

src/github_integration/github_manager.py

@@ -152,7 +152,7 @@ def fetch_issues(self, since: Optional[datetime] = None, state: Optional[str] =
             logging.error("Repository is not set.")
             return []
 
-        if not since:
+        if since is None:
             since = self.__get_since()
 
         try:
@@ -257,12 +257,11 @@ def __get_since(self) -> Optional[datetime]:
         Gets the 'since' datetime for fetching issues, pull requests, and commits.
         :return: The 'since' datetime, or None if it is not set.
         """
-        if not self.__repository:
+        if self.__repository is None:
             logging.error("Repository is not set.")
             return None
 
-        if not self.__git_release:
-            logging.error("Latest release is not set.")
-            return None
+        if self.__git_release is None:
+            return self.__repository.created_at
 
         return self.__git_release.published_at if self.__git_release.published_at else self.__git_release.created_at

tests/github_integration/test_github_manager.py

@@ -164,14 +164,16 @@ def test_fetch_issues_without_git_release():
     github_mock = Mock(spec=Github)
     GithubManager().github = github_mock
     repository_mock = Mock(spec=Repository)
+    repository_created_at = datetime(2023, 1, 1)
+    repository_mock.created_at = repository_created_at
     GithubManager()._GithubManager__repository = repository_mock
     issues_mock = [Mock(), Mock()]
     repository_mock.get_issues.return_value = issues_mock
 
     result = GithubManager().fetch_issues()
 
     assert len(issues_mock) == len(result)
-    repository_mock.get_issues.assert_called_with(state="all", since=None)      # get all state of issues in 'one' call
+    repository_mock.get_issues.assert_called_with(state="all", since=repository_created_at)      # get all state of issues in 'one' call
 
 
 def test_fetch_issues_without_git_release_no_repository():