{
  "validFuelLog": {
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    "dateTime": "2024-01-15T10:30:00Z",
    "odometerReading": 52000,
    "tripDistance": 325,
    "fuelType": "gasoline",
    "fuelGrade": "premium",
    "fuelUnits": 12.5,
    "costPerUnit": 3.299,
    "locationData": "123 Main St, City, ST",
    "notes": "Full tank, premium gas"
  },
  "validFuelLogRegular": {
    "vehicleId": "550e8400-e29b-41d4-a716-446655440000",
    "dateTime": "2024-01-10T09:15:00Z",
    "odometerReading": 51675,
    "tripDistance": 300,
    "fuelType": "gasoline",
    "fuelGrade": "regular",
    "fuelUnits": 12.0,
    "costPerUnit": 3.099,
    "locationData": "456 Oak Ave, Town, ST",
    "notes": "Regular unleaded"
  },
  "validFuelLogDiesel": {
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    "dateTime": "2024-01-20T14:45:00Z",
    "odometerReading": 48000,
    "tripDistance": 280,
    "fuelType": "diesel",
    "fuelGrade": null,
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    "costPerUnit": 3.499,
    "locationData": "789 Elm St, City, ST",
    "notes": "Diesel fill-up"
  },
  "fuelLogWithoutTripDistance": {
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    "dateTime": "2024-01-22T11:00:00Z",
    "odometerReading": 52325,
    "tripDistance": null,
    "fuelType": "gasoline",
    "fuelGrade": "premium",
    "fuelUnits": 12.0,
    "costPerUnit": 3.299,
    "locationData": "999 Main St, City, ST",
    "notes": null
  },
  "invalidFuelLogNegativeFuel": {
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    "dateTime": "2024-01-15T10:30:00Z",
    "odometerReading": 52000,
    "tripDistance": 325,
    "fuelType": "gasoline",
    "fuelGrade": "premium",
    "fuelUnits": -5.0,
    "costPerUnit": 3.299,
    "locationData": "123 Main St, City, ST",
    "notes": "Invalid negative fuel units"
  },
  "invalidFuelLogFutureDatetime": {
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    "dateTime": "2099-12-31T23:59:59Z",
    "odometerReading": 52000,
    "tripDistance": 325,
    "fuelType": "gasoline",
    "fuelGrade": "premium",
    "fuelUnits": 12.5,
    "costPerUnit": 3.299,
    "locationData": "123 Main St, City, ST",
    "notes": "Future date not allowed"
  },
  "responseWithEfficiency": {
    "id": "f47ac10b-58cc-4372-a567-0e02b2c3d479",
    "userId": "auth0|user123",
    "vehicleId": "550e8400-e29b-41d4-a716-446655440000",
    "dateTime": "2024-01-15T10:30:00Z",
    "odometerReading": 52000,
    "tripDistance": 325,
    "fuelType": "gasoline",
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    "costPerUnit": 3.299,
    "totalCost": 41.24,
    "locationData": "123 Main St, City, ST",
    "notes": "Full tank, premium gas",
    "efficiency": 26.0,
    "efficiencyLabel": "MPG",
    "createdAt": "2024-01-15T10:30:00Z",
    "updatedAt": "2024-01-15T10:30:00Z"
  },
  "vehicleStatsResponse": {
    "logCount": 5,
    "totalFuelUnits": 60.5,
    "totalCost": 200.25,
    "averageCostPerUnit": 3.31,
    "totalDistance": 1625,
    "averageEfficiency": 26.8,
    "unitLabels": {
      "distance": "miles",
      "fuelUnits": "gallons",
      "efficiencyUnits": "MPG"
    }
  }
}
