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问题:如何修复测试文件中的导入语句?

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我运行以下命令:

运行测试的命令

cd cluster_health
python -m pytest tests/ -v -s

然后我收到以下错误!

    ImportError while importing test module '<full path>...\cluster_health\tests\unit\test_handler.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
tests\unit\test_handler.py:5: in <module>
    from health_check import app
health_check\app.py:3: in <module>
    import my_elastic_search
E   ModuleNotFoundError: No module named 'my_elastic_search'

.\cluster_health\tests\unit\test_handler.py

import json
import sys
import pytest
import health_check
from health_check import app
from health_check import my_elastic_search
# from unittest.mock import patch
import mock
from mock import Mock

def test_lambda_handler(apigw_event, monkeypatch):
    CONN = Mock(return_value="banana")
    monkeypatch.setattr('health_check.my_elastic_search.connect', CONN)
    ret = app.lambda_handler(apigw_event, "")    
    # etc...

.\cluster_health\health_check\app.py

import json
import sys
import my_elastic_search

def lambda_handler(event, context):
    print(my_elastic_search.connect("myhost", "myuser", "mypass"))
    # etc

.\cluster_health\health_check\my_elastic_search.py

def connect(the_host, the_user, the_pass):
    return "You are connected!"
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2 回答 2

1

health_check 是文件夹的名称。在 Python 中导入时,您无需命名文件夹。您只需使用import my_elastic_search. 但是,这可能会导致找不到模块。您可以使用一个名为“sys”的模块来定义程序应该在哪里搜索正在导入的模块,或者您可以将代码放在与模块相同的目录中。from当从文件中导入特定函数或从文件中导入类时,您将使用它。

于 2019-05-01T10:03:58.750 回答
1

感谢从父文件夹和@woofless(上图)导入模块,这是我对问题的解决方案(问题陈述实际上是我正在引用父目录中的模块。AWS Toolkit for Visual Studio with SAM 的脚手架没有提供适当的代码以充分引用其他父模块)!

请注意下面的sys.path.insert。此外,根据@woofless,我简化了命名空间引用,使其不引用根文件夹“health_check”。瞧!

.\cluster_health\tests\unit\test_handler.py

import sys, os, inspect
currentdir = os.path.dirname(os.path.abspath(inspect.getfile(inspect.currentframe())))
parentdir = os.path.dirname(currentdir)
parentdir = "%s\\health_check"%os.path.dirname(parentdir)
sys.path.insert(0,parentdir)
print(parentdir)

import json

import pytest
import health_check
import app
import my_elastic_search
于 2019-05-01T10:49:06.833 回答