Synnefo

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"""

Common utils for burnin tests

"""

import sys

import traceback

# Use backported unittest functionality if Python < 2.7

try:

    import unittest2 as unittest

except ImportError:

    if sys.version_info < (2, 7):

        raise Exception("The unittest2 package is required for Python < 2.7")

    import unittest

from kamaki.clients.astakos import AstakosClient

from kamaki.clients.compute import ComputeClient

from logger import Log

# --------------------------------------------------------------------

# Global variables

logger = None  # Invalid constant name. pylint: disable-msg=C0103

AUTH_URL = "https://accounts.okeanos.grnet.gr/identity/v2.0/"

TOKEN = ""

CONNECTION_RETRY_LIMIT = 2

# --------------------------------------------------------------------

# BurninTestResult class

class BurninTestResult(unittest.TestResult):

    """Modify the TextTestResult class"""

    def __init__(self):

        super(BurninTestResult, self).__init__()

        # Test parameters

        self.failfast = True

    def startTest(self, test):  # noqa

        """Called when the test case test is about to be run"""

        super(BurninTestResult, self).startTest(test)

        # Access to a protected member. pylint: disable-msg=W0212

        logger.log(test.__class__.__name__, test._testMethodDoc)

    # Method could be a function. pylint: disable-msg=R0201

    def _test_failed(self, test, err):

        """Test failed"""

        # Access to a protected member. pylint: disable-msg=W0212

        err_msg = test._testMethodDoc + "... failed."

        logger.error(test.__class__.__name__, err_msg)

        (err_type, err_value, err_trace) = err

        trcback = traceback.format_exception(err_type, err_value, err_trace)

        logger.info(test.__class__.__name__, trcback)

    def addError(self, test, err):  # noqa

        """Called when the test case test raises an unexpected exception"""

        super(BurninTestResult, self).addError(test, err)

        self._test_failed(test, err)

    def addFailure(self, test, err):  # noqa

        """Called when the test case test signals a failure"""

        super(BurninTestResult, self).addFailure(test, err)

        self._test_failed(test, err)

# --------------------------------------------------------------------

# BurninTests class

# Too many public methods (45/20). pylint: disable-msg=R0904

class BurninTests(unittest.TestCase):

    """Common class that all burnin tests should implement"""

    @classmethod

    def setUpClass(cls):  # noqa

        """Initialize BurninTests"""

        cls.suite_name = cls.__name__

        cls.connection_retry_limit = CONNECTION_RETRY_LIMIT

        logger.testsuite_start(cls.suite_name)

        # Set test parameters

        cls.longMessage = True

    def test_clients_setup(self):

        """Initializing astakos/cyclades/pithos clients"""

        # Update class attributes

        cls = type(self)

        self.info("Astakos auth url is %s", AUTH_URL)

        cls.astakos = AstakosClient(AUTH_URL, TOKEN)

        cls.astakos.CONNECTION_RETRY_LIMIT = CONNECTION_RETRY_LIMIT

        cls.compute_url = \

            cls.astakos.get_service_endpoints('compute')['publicURL']

        self.info("Cyclades url is %s", cls.compute_url)

        cls.compute = ComputeClient(cls.compute_url, TOKEN)

        cls.compute.CONNECTION_RETRY_LIMIT = CONNECTION_RETRY_LIMIT

    def log(self, msg, *args):

        """Pass the section value to logger"""

        logger.log(self.suite_name, msg, *args)

    def info(self, msg, *args):

        """Pass the section value to logger"""

        logger.info(self.suite_name, msg, *args)

    def debug(self, msg, *args):

        """Pass the section value to logger"""

        logger.debug(self.suite_name, msg, *args)

    def warning(self, msg, *args):

        """Pass the section value to logger"""

        logger.warning(self.suite_name, msg, *args)

    def error(self, msg, *args):

        """Pass the section value to logger"""

        logger.error(self.suite_name, msg, *args)

# --------------------------------------------------------------------

# Helper functions

def was_succesful(tsuite, success):

    """Handle whether a testsuite was succesful or not"""

    if success:

        logger.testsuite_success(tsuite)

    else:

        logger.testsuite_failure(tsuite)

def setup_logger(output_dir, verbose=1, use_colors=True, in_parallel=False):

    """Setup our logger"""

    global logger  # Using global statement. pylint: disable-msg=C0103,W0603

    logger = Log(output_dir, verbose=verbose,

                 use_colors=use_colors, in_parallel=in_parallel)