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?
The test file is located at C:\path\to\some-test-classes\test_an_example.py
The class being tested is located at 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.
Here are the details:
TEST FILE:
The test file located at C:\path\to\some-test-classes\test_an_example.py
is:
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:
The class being tested is located at C:\\completely\\different\\path\\an_example.py
and contains the following:
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:
Currently, the following error is being returned:
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.
CodePudding user response:
Your code works fine. The issue is that you never import the an_example
class. In your test file you import an_example
but you are importing the module. You can actually see it in the traceback:
AttributeError: module 'an_example' has no attribute 'someMethod'
In order to import the class an_example
you would need to do something like this:
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)