Karate DSL : How to check if the JSON object is optional, 但如果该对象来自该对象内的键应该具有正确的架构？

Question

我想验证一个 JSON 模式，其中嵌套 JSON 响应中的对象是可选的，但如果该对象出现，则该对象中的键也应该出现。

响应示例:-

{
    "id" : "1234",
    "targetPhoneNumber" : "1234",
    "paid" : { //optional
      "units" : "asd", //mandatory if the paid object is coming
      "amount" : 12.00 //mandatory if the paid object is coming
    },
    "date" : "2019",
    "boolean" : false,
    "transactionId" : "1234"
  }

我需要对这些情况进行架构检查。

1) 如果付费对象即将到来，它应该是一个 JSON 对象，并且应包含字符串单位和强制金额。 2) 如果付费对象没有到来，架构验证仍然应该通过。

Answer 1

组合'self' validation expressions和 karate.match(actual, Expected) API 提供了一些方法来实现这一点，

这应该有效，

* def schema =
"""
{
      "boolean": "#boolean",
      "date": "#string",
      "id": "#string",
      "paid": "##object? karate.match(_,{\"amount\": \"#number\",\"units\": \"#string\"}).pass",
      "targetPhoneNumber": "#string",
      "transactionId": "#string"
}
"""

如果您不想内联添加子架构/如果您的子架构太大，您可以尝试此操作

* def passSchema =
"""
{
    "amount": "#number",
    "units": "#string"
}
"""
* def schema =
"""
{
    "boolean": "#boolean",
    "date": "#string",
    "id": "#string",
    "paid": "##object? karate.match(_,passSchema).pass",
    "targetPhoneNumber": "#string",
    "transactionId": "#string"
}
"""

简单的 JSON 架构:

{
      "boolean": "#boolean",
      "date": "#string",
      "id": "#string",
      "paid": "##object? karate.match(_,{\"amount\": \"#number\",\"units\": \"#string\"}).pass",
      "targetPhoneNumber": "#string",
      "transactionId": "#string"
}