twisted trial unittest gets ImportError
I'm trying to write some unittests using trial for my twisted application, I wrote my first 'empty' trial unittest class but when I try to run it I get ImportError for importing my app module.
This is as I suspect because trial changes the current working directory and when I try to import my module with the object class that I want to unittest it fails.
I keep my application modules in a single directory which I set up by myself, it's not in any directory from PYTHONPATH or else known, in my app the modules import other modules since they all are in the same dir.
The code looks similiar to this:
from twisted.trial import unit开发者_JS百科test
from twisted.spread import pb
from twisted.internet import reactor, protocol
from MyModule import MyTestSubject
class MyTestSubjectTest(unittest.TestCase):
def setUp(self):
print('\nset up')
def test_startConsoleServer(self):
ts = MyTestSubject()
.... # here goes the body of the test
def tearDown(self):
print('\ntear down')
So the error msg looks like this:
exceptions.ImportError: No module named MyModuleMaybe this is not the standard way of using trial or deploying a python app.
UPDATE: I just figured out a workaround for this, just append the app directory to sys.path so the imports part will look like this:
from twisted.trial import unittest
from twisted.spread import pb
from twisted.internet import reactor, protocol
import sys, os; sys.path.append(os.path.abspath(os.path.curdir))
from MyModule import MyTestSubject
How are your modules / packages organised? Perhaps try a structure like the following, then you won't need to do any path hackery:
$ ls -R mypackage
mypackage:
__init__.py __init__.pyc mymodule.py mymodule.pyc test
mypackage/test:
__init__.py __init__.pyc test_mymodule.py test_mymodule.pyc
run tests from just above the mypackage package dir:
$ trial mypackage
mypackage.test.test_mymodule
MyModuleTestCase
test_something ... [OK]
-------------------------------------------------------------------------------
Ran 1 tests in 0.002s
PASSED (successes=1)
inside file test_mymodule.py:
from twisted.trial import unittest
from mypackage.mymodule import MyTestSubject
class MyModuleTestCase(unittest.TestCase):
def test_something(self):
pass
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