New submission from Toshishige Hagihara:
There is a problem with unittest discovering with namespace packages.
Given the following directory structure, the following command fails with the
errors.
# Directory Structure
```
/home/hagihara/test.cybozu/infra/forest/lib/python3/
cybozu/ # <- namespace package
cmdb/
__init__.py
test.py
```
# Commands
```
# setup module path
echo /home/hagihara/test.cybozu/infra/forest/lib/python3 > sudo dd
of=/usr/lib/python3/dist-packages/cybozu.pth
cd /home/hagihara/test.cybozu/infra
python3 -m unittest discover -s cybozu
```
# Errors
```
$ python3 -m unittest discover -s cybozu
Traceback (most recent call last):
File "/usr/lib/python3.4/unittest/loader.py", line 221, in discover
os.path.dirname((the_module.__file__)))
AttributeError: 'module' object has no attribute '__file__'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/usr/lib/python3.4/runpy.py", line 170, in _run_module_as_main
"__main__", mod_spec)
File "/usr/lib/python3.4/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/usr/lib/python3.4/unittest/__main__.py", line 18, in <module>
main(module=None)
File "/usr/lib/python3.4/unittest/main.py", line 92, in __init__
self.parseArgs(argv)
File "/usr/lib/python3.4/unittest/main.py", line 116, in parseArgs
self._do_discovery(argv[2:])
File "/usr/lib/python3.4/unittest/main.py", line 225, in _do_discovery
self.test = loader.discover(self.start, self.pattern, self.top)
File "/usr/lib/python3.4/unittest/loader.py", line 242, in discover
namespace=True))
File "/usr/lib/python3.4/unittest/loader.py", line 349, in _find_tests
namespace=namespace)
File "/usr/lib/python3.4/unittest/loader.py", line 310, in _find_tests
name = self._get_name_from_path(full_path)
File "/usr/lib/python3.4/unittest/loader.py", line 284, in _get_name_from_path
assert not _relpath.startswith('..'), "Path must be within the project"
AssertionError: Path must be within the project
```
# Cause of the error
This error happens because TestLoader.discover does not set
`self._top_level_dir` properly.
`/usr/lib/python3.4/unittest/loader.py`
```
class TestLoader(object):
...
def discover(self, start_dir, pattern='test*.py', top_level_dir=None):
...
if os.path.isdir(os.path.abspath(start_dir)):
...
else:
# support for discovery from dotted module names
try:
__import__(start_dir)
except ImportError:
is_not_importable = True
else:
try:
start_dir = os.path.abspath(
os.path.dirname((the_module.__file__)))
except AttributeError:
# look for namespace packages
...
if spec and spec.loader is None:
if spec.submodule_search_locations is not None:
is_namespace = True
for path in the_module.__path__:
if (not set_implicit_top and
not path.startswith(top_level_dir)):
continue
self._top_level_dir = \ <---
cause of the error.
(path.split(the_module.__name__
.replace(".", os.path.sep))[0])
```
If path of the module contains the string same as the module name,
the path is split at incorrect position and invalid value is set to
`self._top_level_dir`.
```
path.split(the_module.__name__.replace(".", os.path.sep))[0]
```
the_module -> cybozu
cybozu.__path__ ->
['/home/hagihara/test.cybozu/infra/forest/lib/python3/cybozu']
path.split('cybozu')[0] -> '/home/hagihara/test.'
----------
components: Tests
messages: 242929
nosy: toshishige hagihara
priority: normal
severity: normal
status: open
title: Unittest discover fails with namespace package if the path contains the
string same as the module name
type: behavior
versions: Python 3.4
_______________________________________
Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue24168>
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