def run_and_verify_dump(repo_dir):
"Runs 'svnadmin dump' and reports any errors, returning the dump content."
output, errput = main.run_svnadmin('dump', repo_dir)
if not output:
raise svntest.actions.SVNUnexpectedStdout("Missing stdout")
if not errput:
raise svntest.actions.SVNUnexpectedStderr("Missing stderr")
return output