{
  "version": "1.0",
  "testCases": [
    {
      "documentation": "standard region is a valid hostlabel",
      "params": {
        "Region": "us-east-1"
      },
      "expect": {
        "endpoint": {
          "url": "https://us-east-1.amazonaws.com"
        }
      }
    },
    {
      "documentation": "starting with a number is a valid hostlabel",
      "params": {
        "Region": "3aws4"
      },
      "expect": {
        "endpoint": {
          "url": "https://3aws4.amazonaws.com"
        }
      }
    },
    {
      "documentation": "when there are dots, only match if subdomains are allowed",
      "params": {
        "Region": "part1.part2"
      },
      "expect": {
        "endpoint": {
          "url": "https://part1.part2-subdomains.amazonaws.com"
        }
      }
    },
    {
      "documentation": "a space is never a valid hostlabel",
      "params": {
        "Region": "part1 part2"
      },
      "expect": {
        "error": "Invalid hostlabel"
      }
    },
    {
      "documentation": "an empty string is not a valid hostlabel",
      "params": {
        "Region": ""
      },
      "expect": {
        "error": "Invalid hostlabel"
      }
    }
  ]
}