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from __future__ import unicode_literals
import unittest
from fs.memoryfs import MemoryFS
from fs.mountfs import MountError, MountFS
from fs.tempfs import TempFS
from fs.test import FSTestCases
class TestMountFS(FSTestCases, unittest.TestCase):
"""Test OSFS implementation."""
def make_fs(self):
fs = MountFS()
mem_fs = MemoryFS()
fs.mount("/", mem_fs)
return fs
class TestMountFS2(FSTestCases, unittest.TestCase):
"""Test OSFS implementation."""
def make_fs(self):
fs = MountFS()
mem_fs = MemoryFS()
fs.mount("/foo", mem_fs)
return fs.opendir("foo")
class TestMountFSBehaviours(unittest.TestCase):
def test_bad_mount(self):
mount_fs = MountFS()
with self.assertRaises(TypeError):
mount_fs.mount("foo", 5)
with self.assertRaises(TypeError):
mount_fs.mount("foo", b"bar")
def test_listdir(self):
mount_fs = MountFS()
self.assertEqual(mount_fs.listdir("/"), [])
m1 = MemoryFS()
m3 = MemoryFS()
m4 = TempFS()
mount_fs.mount("/m1", m1)
mount_fs.mount("/m2", "temp://")
mount_fs.mount("/m3", m3)
with self.assertRaises(MountError):
mount_fs.mount("/m3/foo", m4)
self.assertEqual(sorted(mount_fs.listdir("/")), ["m1", "m2", "m3"])
m3.makedir("foo")
self.assertEqual(sorted(mount_fs.listdir("/m3")), ["foo"])
def test_auto_close(self):
"""Test MountFS auto close is working"""
mount_fs = MountFS()
m1 = MemoryFS()
m2 = MemoryFS()
mount_fs.mount("/m1", m1)
mount_fs.mount("/m2", m2)
self.assertFalse(m1.isclosed())
self.assertFalse(m2.isclosed())
mount_fs.close()
self.assertTrue(m1.isclosed())
self.assertTrue(m2.isclosed())
def test_no_auto_close(self):
"""Test MountFS auto close can be disabled"""
mount_fs = MountFS(auto_close=False)
m1 = MemoryFS()
m2 = MemoryFS()
mount_fs.mount("/m1", m1)
mount_fs.mount("/m2", m2)
self.assertFalse(m1.isclosed())
self.assertFalse(m2.isclosed())
mount_fs.close()
self.assertFalse(m1.isclosed())
self.assertFalse(m2.isclosed())
def test_empty(self):
"""Test MountFS with nothing mounted."""
mount_fs = MountFS()
self.assertEqual(mount_fs.listdir("/"), [])
def test_mount_self(self):
mount_fs = MountFS()
with self.assertRaises(ValueError):
mount_fs.mount("/", mount_fs)
def test_desc(self):
mount_fs = MountFS()
mount_fs.desc("/")
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