pycharm and unittesting - structuring project

Question

I am using pycharm at one of my university projects and I wanted to integrated it with unittest module, but I have a problem with structuring my project

Part of this project involves generating abstract syntax trees, so I created AST directory and put __init__.py there, then I created expression module. I wanted to put my tests in test/ subdirectory, so it would look like this:

AST/
  __init__.py
  expression.py
  test/
      some_test.py
  utils.py

now I have also module in my AST called symbol_table and module called utils, example test class looks like

import unittest
from ...AST import expression
from ...AST import utils


class ConstantExpressionTest(unittest.TestCase):

    def testConstantExpressionCheck(self):
        constantExpression = expression.ConstantExpression(17, 5, utils.TYPES.INT)
        self.assertTrue(constantExpression.check())

when I right click on this file and select Run Unittest in ... I am getting errors:

/usr/bin/python2.7 /home/xubuntu/Downloads/pycharm-2.7.2/helpers/pycharm/utrunner.py /home/xubuntu/Przedmioty/VI/kompilatory/tk-projekt/src/AST/test/test_constant_expression.py true
Testing started at 12:06 PM ...
Traceback (most recent call last):
  File "/home/xubuntu/Downloads/pycharm-2.7.2/helpers/pycharm/utrunner.py", line 110, in <module>
    modules = [loadSource(a[0])]
  File "/home/xubuntu/Downloads/pycharm-2.7.2/helpers/pycharm/utrunner.py", line 34, in loadSource
    module = imp.load_source(moduleName, fileName)
  File "/home/xubuntu/Przedmioty/VI/kompilatory/tk-projekt/src/AST/test/test_constant_expression.py", line 2, in <module>
    from ...AST import utils
ValueError: Attempted relative import in non-package

Process finished with exit code 1

I have read about this problem and if I understand this right, this file is treated as it would be in top-level package so I can't use any relative imports.

But if that is the case, how can I run unit-tests from pycharm and also keep my current project strcture?

If I am not mistaken, putting tests in sub-package is pretty popular (http://as.ynchrono.us/2007/12/filesystem-structure-of-python-project_21.html) so there must be some kind of solution

Andna · Accepted Answer · 2013-05-18 08:49:28Z

2

Well, that is a bit silly, I found out that pycharm adds the root of the project to path so I can just use normal imports from the root of my project.

So for example I can write

from AST import expression in my some_test file

answered May 18, 2013 at 8:49

Andna

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