空手道 - 能够动态决定空手道比赛的类型以进行验证

Question

假设我们为不断发展的服务器编写了以下场景的脚本

Actual server v1 response 
response = { id: "1", name: "karate" }
Mocking client v1 schema 
schema = { id: "#string", name: "#string }
* match response == schema

Actual server v2 response
response = { id: "2", name: "karate", value: "is" }
Mocking client v2 schema
schema = { id: "#string", name: "#string, value: "#string" }
* match response == schema

Actual server v3 response
response = { id: "3", name: "karate", value: "is", description: "easy" }
Mocking client v3 schema
schema = { id: "#string", name: "#string", value: "#string", description: "#string" }
* match response == schema

类似地，为了对我们不断发展的服务器进行向后兼容性测试，我们按照以下方式编写场景脚本

Actual server v3 response
response = { id: "3", name: "karate", value: "is", description: "easy" }
Mocking client v1 schema 
schema = { id: "#string", name: "#string }
* match response contains schema

Actual server v2 response
response = { id: "2", name: "karate", value: "is" }
Mocking client v1 schema 
schema = { id: "#string", name: "#string }
* match response contains schema

Actual server v1 response 
response = { id: "1", name: "karate" }
Mocking client v1 schema 
schema = { id: "#string", name: "#string }
* match response contains schema

提议是能够在匹配语句中使用某种标志，动态决定我们在测试期间进行的匹配类型。 假设标志的名称是 SOMEFLAG，我们提供了我们想要在测试期间进行的匹配类型（在 karate-config.js 中设置以实现全局效果）

var SOMEFLAG = "contains"; 
OR
var SOMEFLAG = "==";

现在在场景中我们执行以下操作

# Depending on what is set in karate-config.js, it will use either contains or == for verification.
* match response SOMEFLAG schema

在空手道中可以做到这一点吗？

还要注意，这个想法的成功实际上取决于https://github.com/intuit/karate/issues/826，因为使用包含匹配的能力匹配嵌套对象。

Answer 1

就我个人而言，我强烈反对这个想法，因为它会降低您的测试的可读性。一旦开始，这是一个滑坡。例如，当您尝试过多重用时会发生什么（是的，重用在测试自动化中可能是一件坏事，我真的不在乎您是否不同意 :) - 请参阅：https://stackoverflow.com/a/54126724/143475

我会做这样的事情：

* def lookup = 
"""
{
  dev: { id: "#string", name: "#string },
  stage: { id: "#string", name: "#string, value: "#string" },
  preprod: { id: "#string", name: "#string", value: "#string", description: "#string" }
}
"""
* def expected = lookup[karate.env]
* match response == expected

编辑 - 我觉得我们在这次讨论之后所做的改变也将解决你的问题 - 或者至少给你一些新的想法：https://github.com/intuit/karate/issues/810