{"input": "MIMAT0000001", "source_db": "mirbase", "how": "remote", "expect": {"valid": true, "normalized": "MIMAT0000001"}, "note": "a real mature microRNA (cel-lin-4-5p)"}
{"input": "MIMAT0000002", "source_db": "mirbase", "how": "remote", "expect": {"valid": true, "normalized": "MIMAT0000002"}, "note": "a real mature microRNA"}
{"input": "MIMAT9999999", "source_db": "mirbase", "how": "remote", "expect": {"valid": false}, "note": "well-formed but no such accession"}
{"input": "mimat0000001", "source_db": "mirbase", "how": "remote", "expect": {"valid": false, "suggestion": "MIMAT0000001"}, "note": "lowercase; the canonical uppercase form exists remotely"}
{"input": "MIMAT001", "source_db": "mirbase", "how": "remote", "expect": {"valid": false}, "note": "too few digits; fails the grammar before any lookup"}
