fix test

Author: sparesparrow

src/git/src/mcp_server_git/server.py

@@ -196,6 +196,8 @@ def get_repo(self, repo_path: str) -> git.Repo:
         Raises:
             ValueError: If the path is invalid or not a Git repository
         """
+        if not self.base_path:
+            raise ValueError("No base repository path configured")
         try:
             resolved_path = self.resolve_repo_path(repo_path)
             validated_path = self.path_validator.validate_path(resolved_path)