[英]unit test of function in different directory gives AttributeError: module has no attribute
What specific syntax must be changed below in order for a unit test running in one part of a file system to successfully test a function in a class that is located in a completely different part of a file system?
为了使在文件系统的一个部分中运行的单元测试能够成功地测试位于文件系统的完全不同部分中的类中的函数,下面必须更改哪些特定语法?
The test file is located at C:\path\to\some-test-classes\test_an_example.py
测试文件位于
C:\path\to\some-test-classes\test_an_example.py
The class being tested is located at C:\\completely\\different\\path\\an_example.py
正在测试的类位于
C:\\completely\\different\\path\\an_example.py
The problem might be in the structure of C:\\completely\\different\\path\\an_example.py
, because the C:\\completely\\different\\path\\an_example.py
IS being imported into C:\path\to\some-test-classes\test_an_example.py
as shown below.问题可能出在
C:\\completely\\different\\path\\an_example.py
的结构中,因为C:\\completely\\different\\path\\an_example.py
正在导入到C:\path\to\some-test-classes\test_an_example.py
如下所示。
Here are the details:以下是详细信息:
TEST FILE:测试文件:
The test file located at C:\path\to\some-test-classes\test_an_example.py
is:位于
C:\path\to\some-test-classes\test_an_example.py
的测试文件是:
import unittest
import subprocess
#Run the tests in this file by running the following command in the terminal:
#python -m unittest test_an_example.py
class TestCommandBuilder(unittest.TestCase):
def test_someMethod(self):
import sys
sys.path.insert(0, 'C:\\completely\\different\\path\\')
print('sys.path is: ', str(sys.path))
import an_example
print('90909090')
firstString = "hello"
secondString = ' there'
returnBool = an_example.someMethod(firstString, secondString)
self.assertTrue(returnBool)
if __name__ == '__main__':
unittest.main()
CLASS BEING TESTED:正在测试的类:
The class being tested is located at C:\\completely\\different\\path\\an_example.py
and contains the following:正在测试的类位于
C:\\completely\\different\\path\\an_example.py
并包含以下内容:
class an_example:
def __init__(self):
pass
def someMethod(firstString, secondString):
print("^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^")
print("firstString is: ",firstString)
print("secondString is: ",secondString)
combinedString = firstString+secondString
print("^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^")
if combinedString == "hello there":
return True
else:
return False
CURRENT ERROR:当前错误:
Currently, the following error is being returned:目前,正在返回以下错误:
C:\path\to\some-test-classes>python -m unittest test_an_example.py
sys.path is: ['C:\\completely\\different\\path\\', 'C:\\path\\to\\some-test-classes', 'C:\\Users\\user\\AppData\\Local\\Programs\\Python\\Python310\\python310.zip', 'C:\\Users\\user\\AppData\\Local\\Programs\\Python\\Python310\\DLLs', 'C:\\Users\\user\\AppData\\Local\\Programs\\Python\\Python310\\lib', 'C:\\Users\\user\\AppData\\Local\\Programs\\Python\\Python310', 'C:\\Users\\user\\AppData\\Local\\Programs\\Python\\Python310\\lib\\site-packages']
90909090
E
======================================================================
ERROR: test_someMethod (test_an_example.TestCommandBuilder)
----------------------------------------------------------------------
Traceback (most recent call last):
File "C:\path\to\some-test-classes\test_an_example.py", line 62, in test_someMethod
returnBool = an_example.someMethod(firstString, secondString)
AttributeError: module 'an_example' has no attribute 'someMethod'
----------------------------------------------------------------------
Ran 1 test in 0.006s
FAILED (errors=1)
As you can see from the results of the print(...)
commands in the above, the class an_example
IS being loaded into test_an_example.py
, but the someMethod(firstString, secondString)
member of the an_example
class is NOT being found.从上面
print(...)
命令的结果可以看出,类an_example
正在加载到test_an_example.py
中,但未找到an_example
类的someMethod(firstString, secondString)
成员。
Your code works fine.您的代码工作正常。 The issue is that you never import the
an_example
class.问题是您从不导入
an_example
类。 In your test file you import an_example
but you are importing the module.在您的测试文件中,您导入
an_example
但您正在导入模块。 You can actually see it in the traceback:您实际上可以在回溯中看到它:
AttributeError: module 'an_example' has no attribute 'someMethod'
AttributeError:模块“an_example”没有属性“someMethod”
In order to import the class an_example
you would need to do something like this:为了导入类
an_example
你需要做这样的事情:
def test_someMethod(self):
import sys
sys.path.insert(0, 'C:\\completely\\different\\path\\')
print('sys.path is: ', str(sys.path))
# import an_example # remove this
from an_example import an_example # changed this
print('90909090')
firstString = "hello"
secondString = ' there'
returnBool = an_example.someMethod(firstString, secondString)
self.assertTrue(returnBool)
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.