fn_join.json

{
  "title": "fn_join",
  "description": "FHIRPath `join` function.",
  "fhirVersion": ["5.0.0", "4.0.1"],
  "resources": [
    {
      "resourceType": "Patient",
      "id": "p1",
      "name": [
        {
          "use": "official",
          "given": ["p1.g1", "p1.g2"]
        }
      ]
    }
  ],
  "tests": [
    {
      "title": "join with comma",
      "tags": ["experimental"],
      "view": {
        "resource": "Patient",
        "select": [
          {
            "column": [
              {
                "path": "id",
                "name": "id",
                "type": "id"
              },
              {
                "path": "name.given.join(',')",
                "name": "given",
                "type": "string"
              }
            ]
          }
        ]
      },
      "expect": [
        {
          "id": "p1",
          "given": "p1.g1,p1.g2"
        }
      ]
    },
    {
      "title": "join with empty value",
      "tags": ["experimental"],
      "view": {
        "resource": "Patient",
        "select": [
          {
            "column": [
              {
                "path": "id",
                "name": "id",
                "type": "id"
              },
              {
                "path": "name.given.join('')",
                "name": "given",
                "type": "string"
              }
            ]
          }
        ]
      },
      "expect": [
        {
          "id": "p1",
          "given": "p1.g1p1.g2"
        }
      ]
    },
    {
      "title": "join with no value - default to no separator",
      "tags": ["experimental"],
      "view": {
        "resource": "Patient",
        "select": [
          {
            "column": [
              {
                "path": "id",
                "name": "id",
                "type": "id"
              },
              {
                "path": "name.given.join()",
                "name": "given",
                "type": "string"
              }
            ]
          }
        ]
      },
      "expect": [
        {
          "id": "p1",
          "given": "p1.g1p1.g2"
        }
      ]
    }
  ]
}