如何解决对进行 API 调用的函数的返回值进行 Pytest
我有一个调用 API 的函数,我想将该 API 调用的返回值 (response
) 设为 {"message":"nopong"}
,以便 ValueError
提高。到目前为止,我已经
# root_folder/subfolder/includes/abc/functions.py
from abc import ABC # 3rd party library
def _check_connection(conn_id):
api_key = get_api_key(conn_id)
api_client = ABC(api_key=api_key)
response = api_client.test_connection()
print(response)
if response['message'] != "pong":
raise ValueError("Failed connection to ABC")
---------------
# root_folder/tests/test_functions.py
import pytest
import sys
sys.path.insert(0,'../subfolder/')
from includes.abc.functions import _check_connection
def test_check_connection_raiseerror(mocker):
with pytest.raises(ValueError) as execinfo:
mocker.patch('includes.abc.functions.ABC.test_connection',return_value='{"message":"nopong"}')
_check_connection("conn_A")
assert str(execinfo.value) == 'Failed connection to ABC'
我得到的 pytest 结果是
================================================== FAILURES ==================================================
______________________________________ test_check_connection_raiseerror ______________________________________
mocker = <pytest_mock.plugin.MockerFixture object at 0x7f85f30c7220>
def test_check_connection_raiseerror(mocker):
with pytest.raises(ValueError) as execinfo:
mocker.patch('includes.abc.functions.ABC.test_connection',return_value='{"message":"nopong"}')
> _check_connection("conn_A")
test_functions.py:73:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
conn_id = 'conn_A'
def _check_connection(conn_id):
api_key = get_api_key(conn_id)
api_client = ABC(api_key=api_key)
response = api_client.test_connection()
print(response)
> if response['message'] != "pong":
E TypeError: string indices must be integers
../subfolder/includes/abc/functions.py:70: TypeError
-------------------------------------------- Captured stdout call --------------------------------------------
{"message":"nopong"}
========================================== short test summary info ===========================================
Failed test_functions.py::test_check_connection_raiseerror - TypeError: string indices must be integers
为什么 pytest 抱怨我的 _check_connection
函数?它使用键 message
正确访问字典,并且在 pytest 之外工作。
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