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Test side effect (#1889)

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Function `prepare_exec_for_file` has a side effect where a path is added to
`sys.path` list.
This commit enhances an exisiting test case for `prepare_exec_for_file`
by testing the side effect of the function and adding necessary
comments.
This commit is contained in:
Hyunchel Kim 2016-06-05 10:32:00 -07:00 • committed by David Lord
parent 9f9e1fde8f
commit 64a37bb9b7
1 changed files with 18 additions and 3 deletions
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21
tests/test_cli.py
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@ -12,6 +12,8 @@
# Copyright (C) 2015 CERN.
#
from __future__ import absolute_import, print_function
import os
import sys
import click
import pytest
@ -50,10 +52,23 @@ def test_find_best_app(test_apps):
def test_prepare_exec_for_file(test_apps):
assert prepare_exec_for_file('test.py') == 'test'
assert prepare_exec_for_file('/usr/share/__init__.py') == 'share'
"""Expect the correct path to be set and the correct module name to be returned.
:func:`prepare_exec_for_file` has a side effect, where
the parent directory of given file is added to `sys.path`.
"""
realpath = os.path.realpath('/tmp/share/test.py')
dirname = os.path.dirname(realpath)
assert prepare_exec_for_file('/tmp/share/test.py') == 'test'
assert dirname in sys.path
realpath = os.path.realpath('/tmp/share/__init__.py')
dirname = os.path.dirname(os.path.dirname(realpath))
assert prepare_exec_for_file('/tmp/share/__init__.py') == 'share'
assert dirname in sys.path
with pytest.raises(NoAppException):
prepare_exec_for_file('test.txt')
prepare_exec_for_file('/tmp/share/test.txt')
def test_locate_app(test_apps):