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# Copyright 2011 OpenStack Foundation

# All Rights Reserved.

#

# Licensed under the Apache License, Version 2.0 (the "License"); you may

# not use this file except in compliance with the License. You may obtain

# a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT

# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the

# License for the specific language governing permissions and limitations

# under the License.

"""Functional test case that tests logging output"""

import httplib2

import os

import stat

from glance.tests import functional

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class TestLogging(functional.FunctionalTest):

"""Functional tests for Glance's logging output"""

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    def test_verbose_debug(self):

        """

        Test logging output proper when verbose and debug

        is on.

        """

        self.cleanup()

        self.start_servers()

        # The default functional test case has both verbose

        # and debug on. Let's verify that debug statements

        # appear in both the API and registry logs.

        self.assertTrue(os.path.exists(self.api_server.log_file))

        api_log_out = open(self.api_server.log_file, 'r').read()

        self.assertTrue('DEBUG glance' in api_log_out)

        self.assertTrue(os.path.exists(self.registry_server.log_file))

        registry_log_out = open(self.registry_server.log_file, 'r').read()

        self.assertTrue('DEBUG glance' in registry_log_out)

        self.stop_servers()

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    def test_no_verbose_no_debug(self):

        """

        Test logging output proper when verbose and debug

        is off.

        """

        self.cleanup()

        self.start_servers(debug=False, verbose=False)

        self.assertTrue(os.path.exists(self.api_server.log_file))

        api_log_out = open(self.api_server.log_file, 'r').read()

        self.assertFalse('DEBUG glance' in api_log_out)

        self.assertTrue(os.path.exists(self.registry_server.log_file))

        registry_log_out = open(self.registry_server.log_file, 'r').read()

        self.assertFalse('DEBUG glance' in registry_log_out)

        self.stop_servers()

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    def assertNotEmptyFile(self, path):

        self.assertTrue(os.path.exists(path))

        self.assertNotEqual(os.stat(path)[stat.ST_SIZE], 0)

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    def test_logrotate(self):

        """

        Test that we notice when our log file has been rotated

        """

        self.cleanup()

        self.start_servers()

        self.assertNotEmptyFile(self.api_server.log_file)

        os.rename(self.api_server.log_file, self.api_server.log_file + ".1")

        path = "http://%s:%d/" % ("127.0.0.1", self.api_port)

        response, content = httplib2.Http().request(path, 'GET')

        self.assertEqual(response.status, 300)

        self.assertNotEmptyFile(self.api_server.log_file)

        self.stop_servers()