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# Copyright 2014 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Unittests for chroot management functions."""
from __future__ import print_function
import os
from chromite.cbuildbot import chroot_lib
from chromite.lib import cros_test_lib
from chromite.lib import osutils
class TestChrootManager(cros_test_lib.TempDirTestCase):
"""Class that tests the ChrootManager."""
sudo_cleanup = True
def setUp(self):
self.chroot_manager = chroot_lib.ChrootManager(self.tempdir)
def testGetChrootVersionWithNoChroot(self):
"""If there's no chroot, GetChrootVersion returns None."""
self.assertIsNone(self.chroot_manager.GetChrootVersion('foo'))
def testSetChrootVersionWithNoChroot(self):
"""If there's no chroot, SetChrootVersion does nothing."""
self.chroot_manager.SetChrootVersion('foo')
self.assertIsNone(self.chroot_manager.GetChrootVersion())
def testSetChrootVersionWithChroot(self):
"""SetChrootVersion sets the chroot version."""
osutils.SafeMakedirs(os.path.join(self.tempdir, 'chroot', 'etc'))
self.chroot_manager.SetChrootVersion('foo')
self.assertEquals('foo', self.chroot_manager.GetChrootVersion())
def testClearChrootVersion(self):
"""SetChrootVersion sets the chroot version."""
osutils.SafeMakedirs(os.path.join(self.tempdir, 'chroot', 'etc'))
self.chroot_manager.SetChrootVersion('foo')
self.assertEquals('foo', self.chroot_manager.GetChrootVersion())
self.chroot_manager.ClearChrootVersion()
self.assertIsNone(self.chroot_manager.GetChrootVersion())
def testUseExistingChroot(self):
"""Tests that EnsureChrootAtVersion succeeds with valid chroot."""
chroot = os.path.join(self.tempdir, 'chroot')
osutils.SafeMakedirs(os.path.join(chroot, 'etc'))
self.chroot_manager.SetChrootVersion('foo')
self.chroot_manager.EnsureChrootAtVersion('foo')
self.assertEquals(self.chroot_manager.GetChrootVersion(chroot), 'foo')
def testUseFreshChroot(self):
"""Tests that EnsureChrootAtVersion succeeds with invalid chroot."""
chroot = os.path.join(self.tempdir, 'chroot')
self.chroot_manager.EnsureChrootAtVersion('foo')
self.assertEquals(self.chroot_manager.GetChrootVersion(chroot), None)
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