#!/usr/bin/env python # Copyright (c) 2016 Ericsson AB and others. # # All rights reserved. This program and the accompanying materials # are made available under the terms of the Apache License, Version 2.0 # which accompanies this distribution, and is available at # http://www.apache.org/licenses/LICENSE-2.0 """ The entry of running tests: 1) Parses xtesting/ci/testcases.yaml to check which testcase(s) to be run 2) Execute the common operations on every testcase (run, push results to db...) 3) Return the right status code """ import argparse import errno import importlib import logging import logging.config import os import re import sys import textwrap import enum import pkg_resources import prettytable import six import yaml from xtesting.ci import tier_builder from xtesting.core import testcase from xtesting.utils import constants from xtesting.utils import env LOGGER = logging.getLogger('xtesting.ci.run_tests') class Result(enum.Enum): """The overall result in enumerated type""" # pylint: disable=too-few-public-methods EX_OK = os.EX_OK EX_ERROR = -1 class BlockingTestFailed(Exception): """Exception when the blocking test fails""" pass class RunTestsParser(object): """Parser to run tests""" # pylint: disable=too-few-public-methods def __init__(self): self.parser = argparse.ArgumentParser() self.parser.add_argument("-t", "--test", dest="test", action='store', help="Test case or tier (group of tests) " "to be executed. It will run all the test " "if not specified.") self.parser.add_argument("-n", "--noclean", help="Do not clean " "OpenStack resources after running each " "test (default=false).", action="store_true") self.parser.add_argument("-r", "--report", help="Push results to " "database (default=false).", action="store_true") def parse_args(self, argv=None): """Parse arguments. It can call sys.exit if arguments are incorrect. Returns: the arguments from cmdline """ return vars(self.parser.parse_args(argv)) class Runner(object): """Runner class""" def __init__(self): self.executed_test_cases = {} self.overall_result = Result.EX_OK self.clean_flag = True self.report_flag = False self.tiers = tier_builder.TierBuilder( pkg_resources.resource_filename('xtesting', 'ci/testcases.yaml')) @staticmethod def source_envfile(rc_file=constants.ENV_FILE): """Source the env file passed as arg""" if not os.path.isfile(rc_file): LOGGER.debug("No env file %s found", rc_file) return with open(rc_file, "r") as rcfd: for line in rcfd: var = (line.rstrip('"\n').replace('export ', '').split( "=") if re.search(r'(.*)=(.*)', line) else None) # The two next lines should be modified as soon as rc_file # conforms with common rules. Be aware that it could induce # issues if value starts with ' if var: key = re.sub(r'^["\' ]*|[ \'"]*$', '', var[0]) value = re.sub(r'^["\' ]*|[ \'"]*$', '', "".join(var[1:])) os.environ[key] = value rcfd.seek(0, 0) LOGGER.info("Sourcing env file %s\n\n%s", rc_file, rcfd.read()) @staticmethod def get_dict_by_test(testname): # pylint: disable=bad-continuation,missing-docstring with open(pkg_resources.resource_filename( 'xtesting', 'ci/testcases.yaml')) as tyaml: testcases_yaml = yaml.safe_load(tyaml) for dic_tier in testcases_yaml.get("tiers"): for dic_testcase in dic_tier['testcases']: if dic_testcase['case_name'] == testname: return dic_testcase LOGGER.error('Project %s is not defined in testcases.yaml', testname) return None @staticmethod def get_run_dict(testname): """Obtain the 'run' block of the testcase from testcases.yaml""" try: dic_testcase = Runner.get_dict_by_test(testname) if not dic_testcase: LOGGER.error("Cannot get %s's config options", testname) elif 'run' in dic_testcase: return dic_testcase['run'] return None except Exception: # pylint: disable=broad-except LOGGER.exception("Cannot get %s's config options", testname) return None def run_test(self, test): """Run one test case""" if not test.is_enabled() or test.is_skipped(): msg = prettytable.PrettyTable( header_style='upper', padding_width=5, field_names=['test case', 'project', 'duration', 'result']) msg.add_row([test.get_name(), test.get_project(), "00:00", "SKIP"]) LOGGER.info("Test result:\n\n%s\n", msg) return testcase.TestCase.EX_TESTCASE_SKIPPED result = testcase.TestCase.EX_TESTCASE_FAILED run_dict = self.get_run_dict(test.get_name()) if run_dict: try: LOGGER.info("Loading test case '%s'...", test.get_name()) module = importlib.import_module(run_dict['module']) cls = getattr(module, run_dict['class']) test_dict = Runner.get_dict_by_test(test.get_name()) test_case = cls(**test_dict) self.executed_test_cases[test.get_name()] = test_case test_case.check_requirements() if test_case.is_skipped: LOGGER.info("Skipping test case '%s'...", test.get_name()) return testcase.TestCase.EX_TESTCASE_SKIPPED LOGGER.info("Running test case '%s'...", test.get_name()) try: kwargs = run_dict['args'] test_case.run(**kwargs) except KeyError: test_case.run() if self.report_flag: test_case.push_to_db() result = test_case.is_successful() LOGGER.info("Test result:\n\n%s\n", test_case) if self.clean_flag: test_case.clean() except ImportError: LOGGER.exception("Cannot import module %s", run_dict['module']) except AttributeError: LOGGER.exception("Cannot get class %s", run_dict['class']) except Exception: # pylint: disable=broad-except LOGGER.exception( "\n\nPlease fix the testcase %s.\n" "All exceptions should be caught by the testcase instead!" "\n\n", test.get_name()) else: raise Exception("Cannot import the class for the test case.") return result def run_tier(self, tier): """Run one tier""" tests = tier.get_tests() if not tests: LOGGER.info("There are no supported test cases in this tier " "for the given scenario") self.overall_result = Result.EX_ERROR else: for test in tests: self.run_test(test) test_case = self.executed_test_cases[test.get_name()] if test_case.is_successful() == test_case.EX_TESTCASE_FAILED: LOGGER.error("The test case '%s' failed.", test.get_name()) self.overall_result = Result.EX_ERROR if test.is_blocking(): raise BlockingTestFailed( "The test case {} failed and is blocking".format( test.get_name())) return self.overall_result def run_all(self): """Run all available testcases""" tiers_to_run = [] msg = prettytable.PrettyTable( header_style='upper', padding_width=5, field_names=['tiers', 'order', 'CI Loop', 'description', 'testcases']) for tier in self.tiers.get_tiers(): ci_loop = env.get('CI_LOOP') if (tier.get_tests() and re.search(ci_loop, tier.get_ci_loop()) is not None): tiers_to_run.append(tier) msg.add_row([tier.get_name(), tier.get_order(), tier.get_ci_loop(), textwrap.fill(tier.description, width=40), textwrap.fill(' '.join([str(x.get_name( )) for x in tier.get_tests()]), width=40)]) LOGGER.info("TESTS TO BE EXECUTED:\n\n%s\n", msg) for tier in tiers_to_run: self.run_tier(tier) def main(self, **kwargs): """Entry point of class Runner""" if 'noclean' in kwargs: self.clean_flag = not kwargs['noclean'] if 'report' in kwargs: self.report_flag = kwargs['report'] try: LOGGER.info("Deployment description:\n\n%s\n", env.string()) self.source_envfile() if 'test' in kwargs: LOGGER.debug("Test args: %s", kwargs['test']) if self.tiers.get_tier(kwargs['test']): self.run_tier(self.tiers.get_tier(kwargs['test'])) elif self.tiers.get_test(kwargs['test']): result = self.run_test( self.tiers.get_test(kwargs['test'])) if result == testcase.TestCase.EX_TESTCASE_FAILED: LOGGER.error("The test case '%s' failed.", kwargs['test']) self.overall_result = Result.EX_ERROR elif kwargs['test'] == "all": self.run_all() else: LOGGER.error("Unknown test case or tier '%s', or not " "supported by the given scenario '%s'.", kwargs['test'], env.get('DEPLOY_SCENARIO')) LOGGER.debug("Available tiers are:\n\n%s", self.tiers) return Result.EX_ERROR else: self.run_all() except BlockingTestFailed: pass except Exception: # pylint: disable=broad-except LOGGER.exception("Failures when running testcase(s)") self.overall_result = Result.EX_ERROR if not self.tiers.get_test(kwargs['test']): self.summary(self.tiers.get_tier(kwargs['test'])) LOGGER.info("Execution exit value: %s", self.overall_result) return self.overall_result def summary(self, tier=None): """To generate xtesting report showing the overall results""" msg = prettytable.PrettyTable( header_style='upper', padding_width=5, field_names=['test case', 'project', 'tier', 'duration', 'result']) tiers = [tier] if tier else self.tiers.get_tiers() for each_tier in tiers: for test in each_tier.get_tests(): try: test_case = self.executed_test_cases[test.get_name()] except KeyError: msg.add_row([test.get_name(), test.get_project(), each_tier.get_name(), "00:00", "SKIP"]) else: if test_case.is_skipped: result = 'SKIP' else: result = 'PASS' if(test_case.is_successful( ) == test_case.EX_OK) else 'FAIL' msg.add_row( [test_case.case_name, test_case.project_name, self.tiers.get_tier_name(test_case.case_name), test_case.get_duration(), result]) for test in each_tier.get_skipped_test(): msg.add_row([test.get_name(), test.get_project(), each_tier.get_name(), "00:00", "SKIP"]) LOGGER.info("Xtesting report:\n\n%s\n", msg) def main(): """Entry point""" try: os.makedirs('/var/lib/xtesting/results/') except OSError as ex: if ex.errno != errno.EEXIST: six.print_("Cannot create /var/lib/xtesting/results/") return testcase.TestCase.EX_RUN_ERROR logging.config.fileConfig(pkg_resources.resource_filename( 'xtesting', 'ci/logging.ini')) logging.captureWarnings(True) parser = RunTestsParser() args = parser.parse_args(sys.argv[1:]) runner = Runner() return runner.main(**args).value