PostMan测试脚本：检查响应JSON的内容 [英] PostMan Test scripts: Inspecting contents of response JSON

问题描述

PostMan 6.0.10在这里。我试图理解如何更好地编写测试脚本，并在阅读它们后以其他方式精湛的文档我仍然对如何查询&检查来自请求的JSON响应。

PostMan 6.0.10 here. I'm trying to understand how to write test scripts a little better, and after reading their otherwise superb documentation I still have some confusion surrounding how to query & examine the JSON response coming back from requests.

具体来说，考虑以下JavaScript代码段：

Specifically, given the following snippet of JavaScript:

pm.test("Verify the contents of the response payload are correct", function () {
    // ???
});

我需要能够查询响应JSON和：

I need to be able to query the response JSON and:

• 确定响应是单个JSON对象还是JSON对象数组


• 如果响应是数组，请确定大小（


• 否则，如果它是单个对象，则我需要能够查询该对象的特定字段（例如，名为 fizzbuzz ）并获取这些字段的值和JSON类型（字符串，数字，布尔值，空值）

• Determine if the response is a single JSON object or an array of JSON objects
• If its an array, determine the size (# of elements in the array)
• Else if its a single object, I need to be able to query that object for specific fields (say, a field called "fizzbuzz") and obtain the values and JSON types (string, number, bool, null) of those fields

示例：

[
    {
        "fizz": "buzz",
        "foo": 53
    },
    {
        "fizz": "bozz",
        "foo": 291
    }
]

场景＃ 2：JSON响应是单个对象

示例：

Scenario #2: JSON response is a single object

Example:

{
    "fizz": "buzz",
    "foo": 293
}

有什么想法可以对响应负载进行JSON检查吗？

推荐答案

这是基本的，但应该可以获取动态信息。

This is basic but should work to get the dynamics:

pm.test("Verify payload of example one",  () => {
    pm.expect(pm.response.json()[0].fizz).to.equal('buzz')
    pm.expect(pm.response.json()[0].foo).to.equal(53)
    pm.expect(pm.response.json()[1].fizz).to.equal('bozz')
    pm.expect(pm.response.json()[1].foo).to.equal(291)
});

pm.test("Verify payload of example two",  () => {
    pm.expect(pm.response.json().fizz).to.equal('buzz')
    pm.expect(pm.response.json().foo).to.equal(293)
});

可能值得研究一些基本的JavaScript以及如何解析 JSON对象。

Might be worth researching some basic JavaScript and how to parse JSON objects.

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