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import unittest
import logging
import os
import tempfile
# Execute shell commands with the 'sh' package.
from sh import rm
class Proj(object):
"""
Create a project temporary directory in /tmp.
"""
def __init__(self, prefix="", persist=False):
"""
Create a /tmp project dir.
Parameters
----------
prefix : str
Optional prefix appended to /tmp projdir directory name.
persist=False : bool
The projdir should persist after the cleanup function is called
only if persist=True.
"""
# This allows string or bool inputs.
if str(persist).lower() == "true":
self.persist = True
longevity = "persistent"
else:
self.persist = False
longevity = "temporary"
self.projdir = unicode(tempfile.mkdtemp(prefix=prefix), "utf-8")
logging.info("Created %s project directory in %s" %
(longevity, self.projdir))
def cleanup(self):
"""Perform cleanup (removal) of the proj directory if Proj persist==False."""
if not self.persist and self.projdir != "/" and self.projdir != "/home":
logging.info("Removing project dir %s" % self.projdir)
# TODO: Test whether we need to trap an exception if the directory
# has already been removed when cleanup is called.
rm("-rf", "--preserve-root", self.projdir)
self.projdir = None
else:
logging.info("Project dir %s will persist" % self.projdir)
class TestProj(unittest.TestCase):
"""Test the Proj class."""
def setUp(self):
self.persistdir = ""
def test_create(self):
self.proj = Proj()
self.assertNotEqual(self.proj.projdir, "")
def test_create_dir(self):
self.proj = Proj()
self.assertTrue(os.path.isdir(self.proj.projdir))
def test_create_with_prefix(self):
self.proj = Proj("testprefix")
self.assertTrue("testprefix" in self.proj.projdir)
def test_create_with_persist_bool(self):
self.proj = Proj(persist=True)
self.assertTrue(self.proj.persist)
self.persistdir = self.proj.projdir
def test_create_with_persist_str(self):
self.proj = Proj(persist="true")
self.assertTrue(self.proj.persist)
self.persistdir = self.proj.projdir
def test_create_with_persist_false_str(self):
self.proj = Proj(persist="false")
self.assertFalse(self.proj.persist)
# Just in-case it wasn't set properly
self.persistdir = self.proj.projdir
def test_create_with_persist_false_bool(self):
self.proj = Proj(persist=False)
self.assertFalse(self.proj.persist)
# Just in-case it wasn't removed properly
self.persistdir = self.proj.projdir
def test_create_with_persist_capstr(self):
self.proj = Proj(persist="TRUE")
self.assertTrue(self.proj.persist)
self.persistdir = self.proj.projdir
def test_cleanup(self):
self.proj = Proj()
projdir = self.proj.projdir
self.proj.cleanup()
# Verify that the directory has been removed.
self.assertFalse(os.path.isdir(projdir))
def test_cleanup_with_persist(self):
self.proj = Proj(persist=True)
projdir = self.proj.projdir
self.proj.cleanup()
self.assertTrue(os.path.isdir(projdir))
self.persistdir = self.proj.projdir
def test_cleanup_with_persist_and_prefix(self):
self.proj = Proj(persist=True, prefix="thingy")
projdir = self.proj.projdir
self.proj.cleanup()
self.assertTrue(os.path.isdir(projdir))
self.persistdir = self.proj.projdir
def tearDown(self):
# if persistdir is set and isdir then remove it or we'll pollute /tmp.
if os.path.isdir(self.persistdir):
if self.persistdir != "/" and self.persistdir != "/home":
rm("-rf", "--preserve-root", self.persistdir)
if __name__ == '__main__':
# logging.basicConfig(level="INFO")
unittest.main()
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