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# Copyright 2013 GRNET S.A. All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or
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# without modification, are permitted provided that the following
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# conditions are met:
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#
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#   1. Redistributions of source code must retain the above
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#      copyright notice, this list of conditions and the following
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#      disclaimer.
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#
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#   2. Redistributions in binary form must reproduce the above
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#      copyright notice, this list of conditions and the following
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#      disclaimer in the documentation and/or other materials
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#      provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
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# OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
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# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# The views and conclusions contained in the software and
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# documentation are those of the authors and should not be
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# interpreted as representing official policies, either expressed
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# or implied, of GRNET S.A.
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"""
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This is the burnin class that tests the Flavors/Images functionality
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"""
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import os
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import shutil
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from kamaki.clients import ClientError
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from synnefo_tools.burnin.common import BurninTests, Proper
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# Too many public methods. pylint: disable-msg=R0904
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class FlavorsTestSuite(BurninTests):
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    """Test flavor lists for consistency"""
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    simple_flavors = Proper(value=None)
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    detailed_flavors = Proper(value=None)
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    simple_names = Proper(value=None)
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    def test_001_simple_flavors(self):
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        """Test flavor list actually returns flavors"""
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        self.simple_flavors = self._get_list_of_flavors(detail=False)
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        self.assertGreater(len(self.simple_flavors), 0)
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    def test_002_get_detailed_flavors(self):
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        """Test detailed flavor list is the same length as list"""
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        self.detailed_flavors = self._get_list_of_flavors(detail=True)
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        self.assertEquals(len(self.simple_flavors), len(self.detailed_flavors))
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    def test_003_same_flavor_names(self):
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        """Test detailed and simple flavor list contain same names"""
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        names = sorted([flv['name'] for flv in self.simple_flavors])
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        self.simple_names = names
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        detailed_names = sorted([flv['name'] for flv in self.detailed_flavors])
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        self.assertEqual(self.simple_names, detailed_names)
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    def test_004_unique_flavor_names(self):
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        """Test flavors have unique names"""
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        self.assertEqual(sorted(list(set(self.simple_names))),
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                         self.simple_names)
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    def test_005_well_formed_names(self):
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        """Test flavors have well formed names
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        Test flavors have names of the form CxxRyyDzz, where xx is vCPU count,
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        yy is RAM in MiB, zz is Disk in GiB
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        """
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        for flv in self.detailed_flavors:
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            flavor = (flv['vcpus'], flv['ram'], flv['disk'],
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                      flv['SNF:disk_template'])
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            self.assertEqual("C%dR%dD%d%s" % flavor, flv['name'],
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                             "Flavor %s doesn't match its specs" % flv['name'])
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# --------------------------------------------------------------------
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# Too many public methods. pylint: disable-msg=R0904
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class ImagesTestSuite(BurninTests):
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    """Test image lists for consistency"""
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    simple_images = Proper(value=None)
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    detailed_images = Proper(value=None)
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    system_images = Proper(value=None)
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    temp_dir = Proper(value=None)
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    temp_image_name = Proper(value=None)
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    temp_image_file = Proper(value=None)
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    def test_001_list_images(self):
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        """Test simple image list actually returns images"""
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        self.simple_images = self._get_list_of_images(detail=False)
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        self.assertGreater(len(self.simple_images), 0)
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    def test_002_list_images_detailed(self):
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        """Test detailed image list is the same length as simple list"""
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        self.detailed_images = self._get_list_of_images(detail=True)
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        self.assertEqual(len(self.simple_images), len(self.detailed_images))
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    def test_003_same_image_names(self):
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        """Test detailed and simple image list contain the same names"""
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        snames = sorted([i['name'] for i in self.simple_images])
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        dnames = sorted([i['name'] for i in self.detailed_images])
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        self.assertEqual(snames, dnames)
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    def test_004_system_images(self):
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        """Test that there are system images registered"""
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        images = self._get_list_of_sys_images(images=self.detailed_images)
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        self.system_images = images
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        self.assertGreater(len(images), 0)
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    def test_005_unique_image_names(self):
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        """Test system images have unique names"""
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        names = sorted([i['name'] for i in self.system_images])
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        self.assertEqual(sorted(list(set(names))), names)
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    def test_006_image_metadata(self):
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        """Test every system image has specific metadata defined"""
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        keys = frozenset(["osfamily", "root_partition"])
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        for i in self.system_images:
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            self.assertTrue(keys.issubset(i['properties'].keys()))
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    def test_007_download_image(self):
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        """Download image from Pithos"""
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        # Find the 'Debian Base' image
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        images = self._find_images(["name:^Debian Base$"],
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                                   images=self.system_images)
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        image = images[0]
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        self.info("Will use %s with id %s", image['name'], image['id'])
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        image_location = \
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            image['location'].replace("://", " ").replace("/", " ").split()
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        image_owner = image_location[1]
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        self.info("Image's owner is %s", image_owner)
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        image_container = image_location[2]
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        self.info("Image's container is %s", image_container)
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        image_name = image_location[3]
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        self.info("Image's name is %s", image_name)
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        self.temp_image_name = image_name
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        self._set_pithos_account(image_owner)
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        self._set_pithos_container(image_container)
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        # Create temp directory
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        self.temp_dir = self._create_tmp_directory()
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        self.temp_image_file = \
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            os.path.join(self.temp_dir, self.temp_image_name)
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        # Write to file
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        self.info("Downloading image to %s", self.temp_image_file)
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        with open(self.temp_image_file, "w+b") as fout:
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            self.clients.pithos.download_object(image_name, fout)
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    def test_008_upload_image(self):
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        """Upload the image to Pithos"""
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        self._set_pithos_account(self._get_uuid())
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        self._create_pithos_container("burnin-images")
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        file_size = os.path.getsize(self.temp_image_file)
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        with open(self.temp_image_file, "r+b") as fin:
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            self.clients.pithos.upload_object(self.temp_image_name, fin)
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        # Verify quotas
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        self._check_quotas(diskspace=file_size)
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    def test_009_register_image(self):
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        """Register image to Plankton"""
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        location = "pithos://" + self._get_uuid() + \
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            "/burnin-images/" + self.temp_image_name
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        self.info("Registering image %s", location)
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        params = {'is_public': False}
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        properties = {'OSFAMILY': "linux", 'ROOT_PARTITION': 1}
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        self.clients.image.register(self.temp_image_name, location,
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                                    params, properties)
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        # Check that image is registered
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        self.info("Checking that image has been registered")
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        images = self._get_list_of_images(detail=True)
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        images = [i for i in images if i['location'] == location]
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        self.assertEqual(len(images), 1)
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        self.info("Image registered with id %s", images[0]['id'])
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    def test_010_cleanup_image(self):
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        """Remove uploaded image from Pithos"""
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        # Remove uploaded image
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        self.info("Deleting uploaded image %s", self.temp_image_name)
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        self.clients.pithos.del_object(self.temp_image_name)
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        # Verify quotas
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        file_size = os.path.getsize(self.temp_image_file)
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        self._check_quotas(diskspace=-file_size)
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        self.temp_image_name = None
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        # Remove temp directory
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        self.info("Deleting temp directory %s", self.temp_dir)
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        self._remove_tmp_directory(self.temp_dir)
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        self.temp_dir = None
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    @classmethod
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    def tearDownClass(cls):  # noqa
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        """Clean up"""
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        if cls.temp_image_name is not None:
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            try:
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                cls.clients.pithos.del_object(cls.temp_image_name)
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            except ClientError:
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                pass
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        if cls.temp_dir is not None:
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            try:
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                shutil.rmtree(cls.temp_dir)
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            except OSError:
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                pass