{
  "id": "system-du-basic",
  "ruleId": "system/du",
  "input": {
    "toolName": "exec",
    "argv": ["du", "-sh", "."],
    "command": "du -sh .",
    "combinedText": "1.2G\t.\n300M\t./node_modules\n",
    "exitCode": 0
  },
  "expect": {
    "matchedReducer": "system/du",
    "family": "system-disk",
    "contains": ["entry", "node_modules"]
  }
}