无法在Python中解码Falcon测试的JSON主体

Question

我正在尝试为Falcon框架编写一些pytests，并按照这里的说明进行操作。我想模拟一个POST请求。然而，我不断得到以下错误

测试/测试应用。29岁：29岁：29岁：以下以下学校的学生：29岁：以下以下学校学校的学生：29：：uu\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\u..//harvester venv/lib/python2。7/现场包/猎鹰/测试/客户。py:170:in-json返回json。加载（self.text）/System/Library/Frameworks/Python。framework/Versions/2.7/lib/python2。7/json/init。py:338:in loads返回_default_解码器。解码/系统/库/框架/Python。framework/Versions/2.7/lib/python2。7/json/解码器。py:366:在解码obj中，end=self。原始解码（s，idx=_w（s，0）。end（））

self=， s = '', idx=0

def raw_decode(self, s, idx=0):
    """Decode a JSON document from ``s`` (a ``str`` or ``unicode``
        beginning with a JSON document) and return a 2-tuple of the Python
        representation and the index in ``s`` where the document ended.

        This can be used to decode a JSON document from a string that may
        have extraneous data at the end.

        """
    try:
        obj, end = self.scan_once(s, idx)
    except StopIteration:

      raise ValueError("No JSON object could be decoded") E           ValueError: No JSON object could be decoded

/系统/库/框架/Python。framework/Versions/2.7/lib/python2。7/json/解码器。py:384:ValueError

这是我试图写的猎鹰测试。当我验证JSON时，我把数据变量放在JSONlint上。com它告诉我数据是有效的，所以问题似乎不在于格式。

import json

import pytest
from falcon import testing

from harvester.app import api


@pytest.fixture()
def client():
    return testing.TestClient(api)


def test_elasticsearch_endpoint(client):
    data = {
        "Type": "SubscriptionConfirmation",
        "MessageId": "0a069ec4-2e6f-4436-9f1d-aa55c3b048f9",
        "Token": "2336412f37fb68751e6e241d59b68cb9ca332001818266bdd4984dd60a76ff2c8a43220b28241ad0ae6659d6313bb2336e98d19bdbc52e0c99578ad43934324b5e73a20e9ad517741cf14a57793d052e9986038ee688a059b34e49746d106bcd597f18f7ff3560be204ef8cd339a3c5276bfa3cc784a7904c8720519387a0",
        "TopicArn": "arn:aws:sns:ap-south-1:141592612890",
        "SubscribeURL": "https://sns.ap-south-1.amazonaws.com/?Action=ConfirmSubscription&TopicArn=arn:aws:sns:ap-south-1:141592612890:harvester_test&Token=2336412f37fb687f5d51e6e241d59b68cb9ca332001818266bdd4984dd60a76ff2c8a41ad0ae6659d6313bb2336e98d19bdbc52e0c99578ad43934324b5e73a20e9ad517741cf14a57793d052e9986038ee688a059b34e49746d106bcd597f18f7ff3560be204ef8cd339a3c5276bfa3cc784a7904c8720519387a0",
        "Timestamp": "2017-06-01T13:22:49.849Z",
        "SignatureVersion": "1",
        "Signature": "Pj9F8PrgqPkSuLjHtrJ9pmh3ZH3kZBaLs5Ywx1C0rrOc4PJp3hYiria9SZr1Xm8uE549khxDFIdAsnGee9fSeO7tZWSNI3W3gRLVnIJ0uAjxU0oicj3P7NnGQ5kUnihKva//Q39RlZOIr4OsxTvOrXnag6M32aC3pEFdBaXJqO0iJJOokT+mmoWa9BWfHXnb/ORAigo50BXsVNSN92PRZAZ7qTeypZSU70EF1+vKNt7mbxrOE2/wpOtb7uDfg/ZW8yZQQqr100bnQVfStDSp6MzID+vupQhM2PR/gS84INA+VdOUhxll/kEkDE98tR9OrNz/PITts5XSg==",
        "SigningCertURL": "https://sns.ap-south-1.amazonaws.com/SimpleNotificationService-b95095beb82e8f6a04.pem"
    }
    result = client.simulate_post('/v1/track/analytics', body=json.dumps(data))
    print result.json

你知道为什么会这样吗？

Answer 1

触发验证错误的是对result.json的调用，而不是您的POSTed JSON。大概您正在测试的elasticsearchendpoint正在发回一个非JSON错误文档。

https://github.com/falconry/falcon/blob/master/falcon/testing/client.py#L153

医生确实说，result。如果结果不能解析为json，json将抛出一个错误，但这肯定会更清晰！

http://falcon.readthedocs.io/en/stable/api/testing.html#falcon.testing.Result.json

Answer 2

不熟悉Falcon。但在这里大胆猜测一下：在您的夹具中，您只传递api类/函数定义，但您没有调用api（）或调用api.create（）。尝试：

@pytest.fixture()
def client():
    return testing.TestClient(api())  # or api.create() ?

同样错误的是，您在第29行发布了点，但您发布的代码段只包含27行。

Answer 3

第一步是在头中设置{“Content Type”：“application/json”}。

此外，您发送有效载荷的方式可以调整如下：

from urllib.parse import urlencode

data = urlencode({
        "Type": "SubscriptionConfirmation",
        "MessageId": "0a069ec4-2e6f-4436-9f1d-aa55c3b048f9",
        "Token": "2336412f37fb68751e6e241d59b68cb9ca332001818266bdd4984dd60a76ff2c8a43220b28241ad0ae6659d6313bb2336e98d19bdbc52e0c99578ad43934324b5e73a20e9ad517741cf14a57793d052e9986038ee688a059b34e49746d106bcd597f18f7ff3560be204ef8cd339a3c5276bfa3cc784a7904c8720519387a0",
        "TopicArn": "arn:aws:sns:ap-south-1:141592612890",
        "SubscribeURL": "https://sns.ap-south-1.amazonaws.com/?Action=ConfirmSubscription&TopicArn=arn:aws:sns:ap-south-1:141592612890:harvester_test&Token=2336412f37fb687f5d51e6e241d59b68cb9ca332001818266bdd4984dd60a76ff2c8a41ad0ae6659d6313bb2336e98d19bdbc52e0c99578ad43934324b5e73a20e9ad517741cf14a57793d052e9986038ee688a059b34e49746d106bcd597f18f7ff3560be204ef8cd339a3c5276bfa3cc784a7904c8720519387a0",
        "Timestamp": "2017-06-01T13:22:49.849Z",
        "SignatureVersion": "1",
        "Signature": "Pj9F8PrgqPkSuLjHtrJ9pmh3ZH3kZBaLs5Ywx1C0rrOc4PJp3hYiria9SZr1Xm8uE549khxDFIdAsnGee9fSeO7tZWSNI3W3gRLVnIJ0uAjxU0oicj3P7NnGQ5kUnihKva//Q39RlZOIr4OsxTvOrXnag6M32aC3pEFdBaXJqO0iJJOokT+mmoWa9BWfHXnb/ORAigo50BXsVNSN92PRZAZ7qTeypZSU70EF1+vKNt7mbxrOE2/wpOtb7uDfg/ZW8yZQQqr100bnQVfStDSp6MzID+vupQhM2PR/gS84INA+VdOUhxll/kEkDE98tR9OrNz/PITts5XSg==",
        "SigningCertURL": "https://sns.ap-south-1.amazonaws.com/SimpleNotificationService-b95095beb82e8f6a04.pem"
})

headers = {"Content-Type": "application/json"}
result = client.simulate_post('/v1/track/analytics', body=data, headers=headers)

那么，这应该可以解决问题。让我知道。