How can I import some functions and classes from modules into test file?

Question

How can I import NestedValueError class & validate_item function from modules into test.py ?

Should I use conftest.py as a mediator between modules and tests file or something?

# /modules/errors.py 

class EmptyValueError(Exception):
      pass

#/modules/validate_item.py
def validate_item():
    pass

#/tests/test.py

import pytest 

def test_item_validate_exception_nested_value():
    with pytest.raises(EmptyValueError):
        validate_item({})

How can you have files in `/modules` while having code directly in the same path? — iBug, Dec 26 '18 at 14:55
Possible duplicate of [PATH issue with pytest 'ImportError: No module named YadaYadaYada'](https://stackoverflow.com/questions/10253826/path-issue-with-pytest-importerror-no-module-named-yadayadayada) — hoefling, Dec 26 '18 at 15:36

iBug · Accepted Answer · 2018-12-26T15:22:13.210

1

Simple:

from modules.errors import EmptyValueError 
from modules.validate_item import validate_item

But be sure to run pytest in /, with the following command:

python3 -m pytest test/

From pytest documentation (linked above):

This is almost equivalent to invoking the command line script pytest [...] directly, except that calling via python will also add the current directory to sys.path.

edited Dec 26 '18 at 15:22

answered Dec 26 '18 at 15:15

iBug

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How can I import some functions and classes from modules into test file?

1 Answers1