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# (C) Copyright 2005-2025 Enthought, Inc., Austin, TX
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in LICENSE.txt and may be redistributed only under
# the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
#
# Thanks for using Enthought open source!
""" Tests folder operations. """
# Standard library imports.
import os
import shutil
import stat
import unittest
from os.path import join
# Enthought library imports.
from apptools.io import File
class FolderTestCase(unittest.TestCase):
""" Tests folder operations on a local file system. """
###########################################################################
# 'TestCase' interface.
###########################################################################
def setUp(self):
""" Prepares the test fixture before each test method is called. """
shutil.rmtree("data", ignore_errors=True)
os.mkdir("data")
def tearDown(self):
""" Called immediately after each test method has been called. """
shutil.rmtree("data")
###########################################################################
# Tests.
###########################################################################
def test_properties(self):
""" folder properties """
# Properties of a non-existent folder.
f = File("data/bogus")
self.assertIn(os.path.abspath(os.path.curdir), f.absolute_path)
self.assertIsNone(f.children)
self.assertEqual(f.ext, "")
self.assertFalse(f.exists)
self.assertFalse(f.is_file)
self.assertFalse(f.is_folder)
self.assertFalse(f.is_package)
self.assertFalse(f.is_readonly)
self.assertEqual(f.mime_type, "content/unknown")
self.assertEqual(f.name, "bogus")
self.assertEqual(f.parent.path, "data")
self.assertEqual(f.path, "data/bogus")
self.assertIn(os.path.abspath(os.path.curdir), f.url)
self.assertEqual(str(f), "File(%s)" % f.path)
# Properties of an existing folder.
f = File("data/sub")
f.create_folder()
self.assertIn(os.path.abspath(os.path.curdir), f.absolute_path)
self.assertEqual(len(f.children), 0)
self.assertEqual(f.ext, "")
self.assertTrue(f.exists)
self.assertFalse(f.is_file)
self.assertTrue(f.is_folder)
self.assertFalse(f.is_package)
self.assertFalse(f.is_readonly)
self.assertEqual(f.mime_type, "content/unknown")
self.assertEqual(f.name, "sub")
self.assertEqual(f.parent.path, "data")
self.assertEqual(f.path, "data/sub")
self.assertIn(os.path.abspath(os.path.curdir), f.url)
# Make it readonly.
os.chmod(f.path, stat.S_IRUSR)
self.assertTrue(f.is_readonly)
# And then make it NOT readonly so that we can delete it at the end of
# the test!
os.chmod(f.path, stat.S_IRUSR | stat.S_IWUSR | stat.S_IXUSR)
self.assertFalse(f.is_readonly)
# Properties of a Python package folder.
f = File("data/package")
f.create_folder()
init = File("data/package/__init__.py")
init.create_file()
self.assertIn(os.path.abspath(os.path.curdir), f.absolute_path)
self.assertEqual(len(f.children), 1)
self.assertEqual(f.ext, "")
self.assertTrue(f.exists)
self.assertFalse(f.is_file)
self.assertTrue(f.is_folder)
self.assertTrue(f.is_package)
self.assertFalse(f.is_readonly)
self.assertEqual(f.mime_type, "content/unknown")
self.assertEqual(f.name, "package")
self.assertEqual(f.parent.path, "data")
self.assertEqual(f.path, "data/package")
self.assertIn(os.path.abspath(os.path.curdir), f.url)
def test_copy(self):
""" folder copy """
f = File("data/sub")
self.assertFalse(f.exists)
# Create the folder.
f.create_folder()
self.assertTrue(f.exists)
self.assertRaises(ValueError, f.create_folder)
self.assertEqual(len(f.children), 0)
self.assertEqual(f.ext, "")
self.assertFalse(f.is_file)
self.assertTrue(f.is_folder)
self.assertEqual(f.mime_type, "content/unknown")
self.assertEqual(f.name, "sub")
self.assertEqual(f.path, "data/sub")
# Copy the folder.
g = File("data/copy")
self.assertFalse(g.exists)
f.copy(g)
self.assertTrue(g.exists)
self.assertEqual(len(g.children), 0)
self.assertEqual(g.ext, "")
self.assertFalse(g.is_file)
self.assertTrue(g.is_folder)
self.assertEqual(g.mime_type, "content/unknown")
self.assertEqual(g.name, "copy")
self.assertEqual(g.path, "data/copy")
# Attempt to copy a non-existent folder (should do nothing).
f = File("data/bogus")
self.assertFalse(f.exists)
g = File("data/bogus_copy")
self.assertFalse(g.exists)
f.copy(g)
self.assertFalse(g.exists)
def test_create_folder(self):
""" folder creation """
f = File("data/sub")
self.assertFalse(f.exists)
# Create the folder.
f.create_folder()
self.assertTrue(f.exists)
parent = File("data")
self.assertEqual(len(parent.children), 1)
self.assertEqual(parent.children[0].path, join("data", "sub"))
# Try to create it again.
self.assertRaises(ValueError, f.create_folder)
def test_create_folders(self):
""" nested folder creation """
f = File("data/sub/foo")
self.assertFalse(f.exists)
# Attempt to create the folder with 'create_folder' which requires
# that all intermediate folders exist.
self.assertRaises(OSError, f.create_folder)
# Create the folder.
f.create_folders()
self.assertTrue(f.exists)
self.assertTrue(File("data/sub").exists)
# Try to create it again.
self.assertRaises(ValueError, f.create_folders)
def test_delete(self):
""" folder deletion """
f = File("data/sub")
self.assertFalse(f.exists)
# Create the folder.
f.create_folder()
self.assertTrue(f.exists)
self.assertRaises(ValueError, f.create_folder)
self.assertEqual(len(f.children), 0)
self.assertEqual(f.ext, "")
self.assertFalse(f.is_file)
self.assertTrue(f.is_folder)
self.assertEqual(f.mime_type, "content/unknown")
self.assertEqual(f.name, "sub")
self.assertEqual(f.path, "data/sub")
# Delete it.
f.delete()
self.assertFalse(f.exists)
# Attempt to delete a non-existet folder (should do nothing).
f = File("data/bogus")
self.assertFalse(f.exists)
f.delete()
self.assertFalse(f.exists)
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