test_base_script.py

from __future__ import print_function

import gc
import mock
import os
import re
import shutil
import tempfile
import types
import unittest
PYWIN32 = False
if os.name == 'nt':
    try:
        import win32file
        PYWIN32 = True
    except ImportError:
        pass


import mozharness.base.errors as errors
import mozharness.base.log as log
from mozharness.base.log import DEBUG, INFO, WARNING, ERROR, CRITICAL, FATAL, IGNORE
import mozharness.base.script as script
from mozharness.base.config import parse_config_file


here = os.path.dirname(os.path.abspath(__file__))

test_string = '''foo
bar
baz'''


class CleanupObj(script.ScriptMixin, log.LogMixin):
    def __init__(self):
        super(CleanupObj, self).__init__()
        self.log_obj = None
        self.config = {'log_level': ERROR}


def cleanup(files=None):
    files = files or []
    files.extend(('test_logs', 'test_dir', 'tmpfile_stdout', 'tmpfile_stderr'))
    gc.collect()
    c = CleanupObj()
    for f in files:
        c.rmtree(f)


def get_debug_script_obj():
    s = script.BaseScript(config={'log_type': 'multi',
                                  'log_level': DEBUG},
                          initial_config_file='test/test.json')
    return s


def _post_fatal(self, **kwargs):
    fh = open('tmpfile_stdout', 'w')
    print(test_string, file=fh)
    fh.close()


# TestScript {{{1
class TestScript(unittest.TestCase):
    def setUp(self):
        cleanup()
        self.s = None
        self.tmpdir = tempfile.mkdtemp(suffix='.mozharness')

    def tearDown(self):
        # Close the logfile handles, or windows can't remove the logs
        if hasattr(self, 's') and isinstance(self.s, object):
            del(self.s)
        cleanup([self.tmpdir])

    # test _dump_config_hierarchy() when --dump-config-hierarchy is passed
    def test_dump_config_hierarchy_valid_files_len(self):
        try:
            self.s = script.BaseScript(
                initial_config_file='test/test.json',
                option_args=['--cfg', 'test/test_override.py,test/test_override2.py'],
                config={'dump_config_hierarchy': True}
            )
        except SystemExit:
            local_cfg_files = parse_config_file('test_logs/localconfigfiles.json')
            # first let's see if the correct number of config files were
            # realized
            self.assertEqual(
                len(local_cfg_files), 4,
                msg="--dump-config-hierarchy dumped wrong number of config files"
            )

    def test_dump_config_hierarchy_keys_unique_and_valid(self):
        try:
            self.s = script.BaseScript(
                initial_config_file='test/test.json',
                option_args=['--cfg', 'test/test_override.py,test/test_override2.py'],
                config={'dump_config_hierarchy': True}
            )
        except SystemExit:
            local_cfg_files = parse_config_file('test_logs/localconfigfiles.json')
            # now let's see if only unique items were added from each config
            t_override = local_cfg_files.get('test/test_override.py', {})
            self.assertTrue(
                t_override.get('keep_string') == "don't change me" and len(t_override.keys()) == 1,
                msg="--dump-config-hierarchy dumped wrong keys/value for "
                    "`test/test_override.py`. There should only be one "
                    "item and it should be unique to all the other "
                    "items in test_log/localconfigfiles.json."
            )

    def test_dump_config_hierarchy_matches_self_config(self):
        try:
            ######
            # we need temp_cfg because self.s will be gcollected (NoneType) by
            # the time we get to SystemExit exception
            # temp_cfg will differ from self.s.config because of
            # 'dump_config_hierarchy'. we have to make a deepcopy because
            # config is a locked dict
            temp_s = script.BaseScript(
                initial_config_file='test/test.json',
                option_args=['--cfg', 'test/test_override.py,test/test_override2.py'],
            )
            from copy import deepcopy
            temp_cfg = deepcopy(temp_s.config)
            temp_cfg.update({'dump_config_hierarchy': True})
            ######
            self.s = script.BaseScript(
                initial_config_file='test/test.json',
                option_args=['--cfg', 'test/test_override.py,test/test_override2.py'],
                config={'dump_config_hierarchy': True}
            )
        except SystemExit:
            local_cfg_files = parse_config_file('test_logs/localconfigfiles.json')
            # finally let's just make sure that all the items added up, equals
            # what we started with: self.config
            target_cfg = {}
            for cfg_file in local_cfg_files:
                target_cfg.update(local_cfg_files[cfg_file])
            self.assertEqual(
                target_cfg, temp_cfg,
                msg="all of the items (combined) in each cfg file dumped via "
                    "--dump-config-hierarchy does not equal self.config "
            )

    # test _dump_config() when --dump-config is passed
    def test_dump_config_equals_self_config(self):
        try:
            ######
            # we need temp_cfg because self.s will be gcollected (NoneType) by
            # the time we get to SystemExit exception
            # temp_cfg will differ from self.s.config because of
            # 'dump_config_hierarchy'. we have to make a deepcopy because
            # config is a locked dict
            temp_s = script.BaseScript(
                initial_config_file='test/test.json',
                option_args=['--cfg', 'test/test_override.py,test/test_override2.py'],
            )
            from copy import deepcopy
            temp_cfg = deepcopy(temp_s.config)
            temp_cfg.update({'dump_config': True})
            ######
            self.s = script.BaseScript(
                initial_config_file='test/test.json',
                option_args=['--cfg', 'test/test_override.py,test/test_override2.py'],
                config={'dump_config': True}
            )
        except SystemExit:
            target_cfg = parse_config_file('test_logs/localconfig.json')
            self.assertEqual(
                target_cfg, temp_cfg,
                msg="all of the items (combined) in each cfg file dumped via "
                    "--dump-config does not equal self.config "
            )

    def test_nonexistent_mkdir_p(self):
        self.s = script.BaseScript(initial_config_file='test/test.json')
        self.s.mkdir_p('test_dir/foo/bar/baz')
        self.assertTrue(os.path.isdir('test_dir/foo/bar/baz'),
                        msg="mkdir_p error")

    def test_existing_mkdir_p(self):
        self.s = script.BaseScript(initial_config_file='test/test.json')
        os.makedirs('test_dir/foo/bar/baz')
        self.s.mkdir_p('test_dir/foo/bar/baz')
        self.assertTrue(os.path.isdir('test_dir/foo/bar/baz'),
                        msg="mkdir_p error when dir exists")

    def test_chdir(self):
        self.s = script.BaseScript(initial_config_file='test/test.json')
        cwd = os.getcwd()
        self.s.chdir('test_logs')
        self.assertEqual(os.path.join(cwd, "test_logs"), os.getcwd(),
                         msg="chdir error")
        self.s.chdir(cwd)

    def _test_log_helper(self, obj):
        obj.debug("Testing DEBUG")
        obj.warning("Testing WARNING")
        obj.error("Testing ERROR")
        obj.critical("Testing CRITICAL")
        try:
            obj.fatal("Testing FATAL")
        except SystemExit:
            pass
        else:
            self.assertTrue(False, msg="fatal() didn't SystemExit!")

    def test_log(self):
        self.s = get_debug_script_obj()
        self.s.log_obj = None
        self._test_log_helper(self.s)
        del(self.s)
        self.s = script.BaseScript(initial_config_file='test/test.json')
        self._test_log_helper(self.s)

    def test_run_nonexistent_command(self):
        self.s = get_debug_script_obj()
        self.s.run_command(command="this_cmd_should_not_exist --help",
                           env={'GARBLE': 'FARG'},
                           error_list=errors.PythonErrorList)
        error_logsize = os.path.getsize("test_logs/test_error.log")
        self.assertTrue(error_logsize > 0,
                        msg="command not found error not hit")

    def test_run_command_in_bad_dir(self):
        self.s = get_debug_script_obj()
        self.s.run_command(command="ls",
                           cwd='/this_dir_should_not_exist',
                           error_list=errors.PythonErrorList)
        error_logsize = os.path.getsize("test_logs/test_error.log")
        self.assertTrue(error_logsize > 0,
                        msg="bad dir error not hit")

    def test_get_output_from_command_in_bad_dir(self):
        self.s = get_debug_script_obj()
        self.s.get_output_from_command(command="ls", cwd='/this_dir_should_not_exist')
        error_logsize = os.path.getsize("test_logs/test_error.log")
        self.assertTrue(error_logsize > 0,
                        msg="bad dir error not hit")

    def test_get_output_from_command_with_missing_file(self):
        self.s = get_debug_script_obj()
        self.s.get_output_from_command(command="ls /this_file_should_not_exist")
        error_logsize = os.path.getsize("test_logs/test_error.log")
        self.assertTrue(error_logsize > 0,
                        msg="bad file error not hit")

    def test_get_output_from_command_with_missing_file2(self):
        self.s = get_debug_script_obj()
        self.s.run_command(
            command="cat mozharness/base/errors.py",
            error_list=[{
                'substr': "error", 'level': ERROR
            }, {
                'regex': re.compile(',$'), 'level': IGNORE,
            }, {
                'substr': ']$', 'level': WARNING,
            }])
        error_logsize = os.path.getsize("test_logs/test_error.log")
        self.assertTrue(error_logsize > 0,
                        msg="error list not working properly")

    def test_download_unpack(self):
        # NOTE: The action is called *download*, however, it can work for files in disk
        self.s = get_debug_script_obj()

        archives_path = os.path.join(here, 'helper_files', 'archives')

        # Test basic decompression
        for archive in ('archive.tar', 'archive.tar.bz2', 'archive.tar.gz', 'archive.zip'):
            self.s.download_unpack(
                url=os.path.join(archives_path, archive),
                extract_to=self.tmpdir
            )
            self.assertIn('script.sh', os.listdir(os.path.join(self.tmpdir, 'bin')))
            self.assertIn('lorem.txt', os.listdir(self.tmpdir))
            shutil.rmtree(self.tmpdir)

        # Test permissions for extracted entries from zip archive
        self.s.download_unpack(
            url=os.path.join(archives_path, 'archive.zip'),
            extract_to=self.tmpdir,
        )
        file_stats = os.stat(os.path.join(self.tmpdir, 'bin', 'script.sh'))
        orig_fstats = os.stat(os.path.join(archives_path, 'reference', 'bin', 'script.sh'))
        self.assertEqual(file_stats.st_mode, orig_fstats.st_mode)
        shutil.rmtree(self.tmpdir)

        # Test unzip specific dirs only
        self.s.download_unpack(
            url=os.path.join(archives_path, 'archive.zip'),
            extract_to=self.tmpdir,
            extract_dirs=['bin/*']
        )
        self.assertIn('bin', os.listdir(self.tmpdir))
        self.assertNotIn('lorem.txt', os.listdir(self.tmpdir))
        shutil.rmtree(self.tmpdir)

        # Test for invalid filenames (Windows only)
        if PYWIN32:
            with self.assertRaises(IOError):
                self.s.download_unpack(
                    url=os.path.join(archives_path, 'archive_invalid_filename.zip'),
                    extract_to=self.tmpdir
                )

    def test_unpack(self):
        self.s = get_debug_script_obj()

        archives_path = os.path.join(here, 'helper_files', 'archives')

        # Test basic decompression
        for archive in ('archive.tar', 'archive.tar.bz2', 'archive.tar.gz', 'archive.zip'):
            self.s.unpack(os.path.join(archives_path, archive), self.tmpdir)
            self.assertIn('script.sh', os.listdir(os.path.join(self.tmpdir, 'bin')))
            self.assertIn('lorem.txt', os.listdir(self.tmpdir))
            shutil.rmtree(self.tmpdir)

        # Test permissions for extracted entries from zip archive
        self.s.unpack(os.path.join(archives_path, 'archive.zip'), self.tmpdir)
        file_stats = os.stat(os.path.join(self.tmpdir, 'bin', 'script.sh'))
        orig_fstats = os.stat(os.path.join(archives_path, 'reference', 'bin', 'script.sh'))
        self.assertEqual(file_stats.st_mode, orig_fstats.st_mode)
        shutil.rmtree(self.tmpdir)

        # Test extract specific dirs only
        self.s.unpack(os.path.join(archives_path, 'archive.zip'), self.tmpdir,
                      extract_dirs=['bin/*'])
        self.assertIn('bin', os.listdir(self.tmpdir))
        self.assertNotIn('lorem.txt', os.listdir(self.tmpdir))
        shutil.rmtree(self.tmpdir)

        # Test for invalid filenames (Windows only)
        if PYWIN32:
            with self.assertRaises(IOError):
                self.s.unpack(os.path.join(archives_path, 'archive_invalid_filename.zip'),
                              self.tmpdir)


# TestHelperFunctions {{{1
class TestHelperFunctions(unittest.TestCase):
    temp_file = "test_dir/mozilla"

    def setUp(self):
        cleanup()
        self.s = None

    def tearDown(self):
        # Close the logfile handles, or windows can't remove the logs
        if hasattr(self, 's') and isinstance(self.s, object):
            del(self.s)
        cleanup()

    def _create_temp_file(self, contents=test_string):
        os.mkdir('test_dir')
        fh = open(self.temp_file, "w+")
        fh.write(contents)
        fh.close

    def test_mkdir_p(self):
        self.s = script.BaseScript(initial_config_file='test/test.json')
        self.s.mkdir_p('test_dir')
        self.assertTrue(os.path.isdir('test_dir'),
                        msg="mkdir_p error")

    def test_get_output_from_command(self):
        self._create_temp_file()
        self.s = script.BaseScript(initial_config_file='test/test.json')
        contents = self.s.get_output_from_command(["bash", "-c", "cat %s" % self.temp_file])
        self.assertEqual(test_string, contents,
                         msg="get_output_from_command('cat file') differs from fh.write")

    def test_run_command(self):
        self._create_temp_file()
        self.s = script.BaseScript(initial_config_file='test/test.json')
        temp_file_name = os.path.basename(self.temp_file)
        self.assertEqual(self.s.run_command("cat %s" % temp_file_name,
                                            cwd="test_dir"), 0,
                         msg="run_command('cat file') did not exit 0")

    def test_move1(self):
        self._create_temp_file()
        self.s = script.BaseScript(initial_config_file='test/test.json')
        temp_file2 = '%s2' % self.temp_file
        self.s.move(self.temp_file, temp_file2)
        self.assertFalse(os.path.exists(self.temp_file),
                         msg="%s still exists after move()" % self.temp_file)

    def test_move2(self):
        self._create_temp_file()
        self.s = script.BaseScript(initial_config_file='test/test.json')
        temp_file2 = '%s2' % self.temp_file
        self.s.move(self.temp_file, temp_file2)
        self.assertTrue(os.path.exists(temp_file2),
                        msg="%s doesn't exist after move()" % temp_file2)

    def test_copyfile(self):
        self._create_temp_file()
        self.s = script.BaseScript(initial_config_file='test/test.json')
        temp_file2 = '%s2' % self.temp_file
        self.s.copyfile(self.temp_file, temp_file2)
        self.assertEqual(os.path.getsize(self.temp_file),
                         os.path.getsize(temp_file2),
                         msg="%s and %s are different sizes after copyfile()" %
                             (self.temp_file, temp_file2))

    def test_existing_rmtree(self):
        self._create_temp_file()
        self.s = script.BaseScript(initial_config_file='test/test.json')
        self.s.mkdir_p('test_dir/foo/bar/baz')
        self.s.rmtree('test_dir')
        self.assertFalse(os.path.exists('test_dir'),
                         msg="rmtree unsuccessful")

    def test_nonexistent_rmtree(self):
        self.s = script.BaseScript(initial_config_file='test/test.json')
        status = self.s.rmtree('test_dir')
        self.assertFalse(status, msg="nonexistent rmtree error")

    @unittest.skipUnless(PYWIN32, "PyWin32 specific")
    def test_long_dir_rmtree(self):
        self.s = script.BaseScript(initial_config_file='test/test.json')
        # create a very long path that the command-prompt cannot delete
        # by using unicode format (max path length 32000)
        path = u'\\\\?\\%s\\test_dir' % os.getcwd()
        win32file.CreateDirectoryExW(u'.', path)

        for x in range(0, 20):
            print("path=%s" % path)
            path = path + u'\\%sxxxxxxxxxxxxxxxxxxxx' % x
            win32file.CreateDirectoryExW(u'.', path)
        self.s.rmtree('test_dir')
        self.assertFalse(os.path.exists('test_dir'),
                         msg="rmtree unsuccessful")

    @unittest.skipUnless(PYWIN32, "PyWin32 specific")
    def test_chmod_rmtree(self):
        self._create_temp_file()
        win32file.SetFileAttributesW(self.temp_file, win32file.FILE_ATTRIBUTE_READONLY)
        self.s = script.BaseScript(initial_config_file='test/test.json')
        self.s.rmtree('test_dir')
        self.assertFalse(os.path.exists('test_dir'),
                         msg="rmtree unsuccessful")

    @unittest.skipIf(os.name == "nt", "Not for Windows")
    def test_chmod(self):
        self._create_temp_file()
        self.s = script.BaseScript(initial_config_file='test/test.json')
        self.s.chmod(self.temp_file, 0o100700)
        self.assertEqual(os.stat(self.temp_file)[0], 33216,
                         msg="chmod unsuccessful")

    def test_env_normal(self):
        self.s = script.BaseScript(initial_config_file='test/test.json')
        script_env = self.s.query_env()
        self.assertEqual(script_env, os.environ,
                         msg="query_env() != env\n%s\n%s" % (script_env, os.environ))

    def test_env_normal2(self):
        self.s = script.BaseScript(initial_config_file='test/test.json')
        self.s.query_env()
        script_env = self.s.query_env()
        self.assertEqual(script_env, os.environ,
                         msg="Second query_env() != env\n%s\n%s" % (script_env, os.environ))

    def test_env_partial(self):
        self.s = script.BaseScript(initial_config_file='test/test.json')
        script_env = self.s.query_env(partial_env={'foo': 'bar'})
        self.assertTrue('foo' in script_env and script_env['foo'] == 'bar')

    def test_env_path(self):
        self.s = script.BaseScript(initial_config_file='test/test.json')
        partial_path = "yaddayadda:%(PATH)s"
        full_path = partial_path % {'PATH': os.environ['PATH']}
        script_env = self.s.query_env(partial_env={'PATH': partial_path})
        self.assertEqual(script_env['PATH'], full_path)

    def test_query_exe(self):
        self.s = script.BaseScript(
            initial_config_file='test/test.json',
            config={'exes': {'foo': 'bar'}},
        )
        path = self.s.query_exe('foo')
        self.assertEqual(path, 'bar')

    def test_query_exe_string_replacement(self):
        self.s = script.BaseScript(
            initial_config_file='test/test.json',
            config={
                'base_work_dir': 'foo',
                'work_dir': 'bar',
                'exes': {'foo': os.path.join('%(abs_work_dir)s', 'baz')},
            },
        )
        path = self.s.query_exe('foo')
        self.assertEqual(path, os.path.join('foo', 'bar', 'baz'))

    def test_read_from_file(self):
        self._create_temp_file()
        self.s = script.BaseScript(initial_config_file='test/test.json')
        contents = self.s.read_from_file(self.temp_file)
        self.assertEqual(contents, test_string)

    def test_read_from_nonexistent_file(self):
        self.s = script.BaseScript(initial_config_file='test/test.json')
        contents = self.s.read_from_file("nonexistent_file!!!")
        self.assertEqual(contents, None)


# TestScriptLogging {{{1
class TestScriptLogging(unittest.TestCase):
    # I need a log watcher helper function, here and in test_log.
    def setUp(self):
        cleanup()
        self.s = None

    def tearDown(self):
        # Close the logfile handles, or windows can't remove the logs
        if hasattr(self, 's') and isinstance(self.s, object):
            del(self.s)
        cleanup()

    def test_info_logsize(self):
        self.s = script.BaseScript(config={'log_type': 'multi'},
                                   initial_config_file='test/test.json')
        info_logsize = os.path.getsize("test_logs/test_info.log")
        self.assertTrue(info_logsize > 0,
                        msg="initial info logfile missing/size 0")

    def test_add_summary_info(self):
        self.s = script.BaseScript(config={'log_type': 'multi'},
                                   initial_config_file='test/test.json')
        info_logsize = os.path.getsize("test_logs/test_info.log")
        self.s.add_summary('one')
        info_logsize2 = os.path.getsize("test_logs/test_info.log")
        self.assertTrue(info_logsize < info_logsize2,
                        msg="add_summary() info not logged")

    def test_add_summary_warning(self):
        self.s = script.BaseScript(config={'log_type': 'multi'},
                                   initial_config_file='test/test.json')
        warning_logsize = os.path.getsize("test_logs/test_warning.log")
        self.s.add_summary('two', level=WARNING)
        warning_logsize2 = os.path.getsize("test_logs/test_warning.log")
        self.assertTrue(warning_logsize < warning_logsize2,
                        msg="add_summary(level=%s) not logged in warning log" % WARNING)

    def test_summary(self):
        self.s = script.BaseScript(config={'log_type': 'multi'},
                                   initial_config_file='test/test.json')
        self.s.add_summary('one')
        self.s.add_summary('two', level=WARNING)
        info_logsize = os.path.getsize("test_logs/test_info.log")
        warning_logsize = os.path.getsize("test_logs/test_warning.log")
        self.s.summary()
        info_logsize2 = os.path.getsize("test_logs/test_info.log")
        warning_logsize2 = os.path.getsize("test_logs/test_warning.log")
        msg = ""
        if info_logsize >= info_logsize2:
            msg += "summary() didn't log to info!\n"
        if warning_logsize >= warning_logsize2:
            msg += "summary() didn't log to warning!\n"
        self.assertEqual(msg, "", msg=msg)

    def _test_log_level(self, log_level, log_level_file_list):
        self.s = script.BaseScript(config={'log_type': 'multi'},
                                   initial_config_file='test/test.json')
        if log_level != FATAL:
            self.s.log('testing', level=log_level)
        else:
            self.s._post_fatal = types.MethodType(_post_fatal, self.s)
            try:
                self.s.fatal('testing')
            except SystemExit:
                contents = None
                if os.path.exists('tmpfile_stdout'):
                    fh = open('tmpfile_stdout')
                    contents = fh.read()
                    fh.close()
                self.assertEqual(contents.rstrip(), test_string, "_post_fatal failed!")
        del(self.s)
        msg = ""
        for level in log_level_file_list:
            log_path = "test_logs/test_%s.log" % level
            if not os.path.exists(log_path):
                msg += "%s doesn't exist!\n" % log_path
            else:
                filesize = os.path.getsize(log_path)
                if not filesize > 0:
                    msg += "%s is size 0!\n" % log_path
        self.assertEqual(msg, "", msg=msg)

    def test_debug(self):
        self._test_log_level(DEBUG, [])

    def test_ignore(self):
        self._test_log_level(IGNORE, [])

    def test_info(self):
        self._test_log_level(INFO, [INFO])

    def test_warning(self):
        self._test_log_level(WARNING, [INFO, WARNING])

    def test_error(self):
        self._test_log_level(ERROR, [INFO, WARNING, ERROR])

    def test_critical(self):
        self._test_log_level(CRITICAL, [INFO, WARNING, ERROR, CRITICAL])

    def test_fatal(self):
        self._test_log_level(FATAL, [INFO, WARNING, ERROR, CRITICAL, FATAL])


# TestRetry {{{1
class NewError(Exception):
    pass


class OtherError(Exception):
    pass


class TestRetry(unittest.TestCase):
    def setUp(self):
        self.ATTEMPT_N = 1
        self.s = script.BaseScript(initial_config_file='test/test.json')

    def tearDown(self):
        # Close the logfile handles, or windows can't remove the logs
        if hasattr(self, 's') and isinstance(self.s, object):
            del(self.s)
        cleanup()

    def _succeedOnSecondAttempt(self, foo=None, exception=Exception):
        if self.ATTEMPT_N == 2:
            self.ATTEMPT_N += 1
            return
        self.ATTEMPT_N += 1
        raise exception("Fail")

    def _raiseCustomException(self):
        return self._succeedOnSecondAttempt(exception=NewError)

    def _alwaysPass(self):
        self.ATTEMPT_N += 1
        return True

    def _mirrorArgs(self, *args, **kwargs):
        return args, kwargs

    def _alwaysFail(self):
        raise Exception("Fail")

    def testRetrySucceed(self):
        # Will raise if anything goes wrong
        self.s.retry(self._succeedOnSecondAttempt, attempts=2, sleeptime=0)

    def testRetryFailWithoutCatching(self):
        self.assertRaises(Exception, self.s.retry, self._alwaysFail, sleeptime=0,
                          exceptions=())

    def testRetryFailEnsureRaisesLastException(self):
        self.assertRaises(SystemExit, self.s.retry, self._alwaysFail, sleeptime=0,
                          error_level=FATAL)

    def testRetrySelectiveExceptionSucceed(self):
        self.s.retry(self._raiseCustomException, attempts=2, sleeptime=0,
                     retry_exceptions=(NewError,))

    def testRetrySelectiveExceptionFail(self):
        self.assertRaises(NewError, self.s.retry, self._raiseCustomException, attempts=2,
                          sleeptime=0, retry_exceptions=(OtherError,))

    # TODO: figure out a way to test that the sleep actually happened
    def testRetryWithSleep(self):
        self.s.retry(self._succeedOnSecondAttempt, attempts=2, sleeptime=1)

    def testRetryOnlyRunOnce(self):
        """Tests that retry() doesn't call the action again after success"""
        self.s.retry(self._alwaysPass, attempts=3, sleeptime=0)
        # self.ATTEMPT_N gets increased regardless of pass/fail
        self.assertEquals(2, self.ATTEMPT_N)

    def testRetryReturns(self):
        ret = self.s.retry(self._alwaysPass, sleeptime=0)
        self.assertEquals(ret, True)

    def testRetryCleanupIsCalled(self):
        cleanup = mock.Mock()
        self.s.retry(self._succeedOnSecondAttempt, cleanup=cleanup, sleeptime=0)
        self.assertEquals(cleanup.call_count, 1)

    def testRetryArgsPassed(self):
        args = (1, 'two', 3)
        kwargs = dict(foo='a', bar=7)
        ret = self.s.retry(self._mirrorArgs, args=args, kwargs=kwargs.copy(), sleeptime=0)
        print(ret)
        self.assertEqual(ret[0], args)
        self.assertEqual(ret[1], kwargs)


class BaseScriptWithDecorators(script.BaseScript):
    def __init__(self, *args, **kwargs):
        super(BaseScriptWithDecorators, self).__init__(*args, **kwargs)

        self.pre_run_1_args = []
        self.raise_during_pre_run_1 = False
        self.pre_action_1_args = []
        self.raise_during_pre_action_1 = False
        self.pre_action_2_args = []
        self.pre_action_3_args = []
        self.post_action_1_args = []
        self.raise_during_post_action_1 = False
        self.post_action_2_args = []
        self.post_action_3_args = []
        self.post_run_1_args = []
        self.raise_during_post_run_1 = False
        self.post_run_2_args = []
        self.raise_during_build = False

    @script.PreScriptRun
    def pre_run_1(self, *args, **kwargs):
        self.pre_run_1_args.append((args, kwargs))

        if self.raise_during_pre_run_1:
            raise Exception(self.raise_during_pre_run_1)

    @script.PreScriptAction
    def pre_action_1(self, *args, **kwargs):
        self.pre_action_1_args.append((args, kwargs))

        if self.raise_during_pre_action_1:
            raise Exception(self.raise_during_pre_action_1)

    @script.PreScriptAction
    def pre_action_2(self, *args, **kwargs):
        self.pre_action_2_args.append((args, kwargs))

    @script.PreScriptAction('clobber')
    def pre_action_3(self, *args, **kwargs):
        self.pre_action_3_args.append((args, kwargs))

    @script.PostScriptAction
    def post_action_1(self, *args, **kwargs):
        self.post_action_1_args.append((args, kwargs))

        if self.raise_during_post_action_1:
            raise Exception(self.raise_during_post_action_1)

    @script.PostScriptAction
    def post_action_2(self, *args, **kwargs):
        self.post_action_2_args.append((args, kwargs))

    @script.PostScriptAction('build')
    def post_action_3(self, *args, **kwargs):
        self.post_action_3_args.append((args, kwargs))

    @script.PostScriptRun
    def post_run_1(self, *args, **kwargs):
        self.post_run_1_args.append((args, kwargs))

        if self.raise_during_post_run_1:
            raise Exception(self.raise_during_post_run_1)

    @script.PostScriptRun
    def post_run_2(self, *args, **kwargs):
        self.post_run_2_args.append((args, kwargs))

    def build(self):
        if self.raise_during_build:
            raise Exception(self.raise_during_build)


class TestScriptDecorators(unittest.TestCase):
    def setUp(self):
        cleanup()
        self.s = None

    def tearDown(self):
        if hasattr(self, 's') and isinstance(self.s, object):
            del self.s

        cleanup()

    def test_decorators_registered(self):
        self.s = BaseScriptWithDecorators(initial_config_file='test/test.json')

        self.assertEqual(len(self.s._listeners['pre_run']), 1)
        self.assertEqual(len(self.s._listeners['pre_action']), 3)
        self.assertEqual(len(self.s._listeners['post_action']), 3)
        self.assertEqual(len(self.s._listeners['post_run']), 2)

    def test_pre_post_fired(self):
        self.s = BaseScriptWithDecorators(initial_config_file='test/test.json')
        self.s.run()

        self.assertEqual(len(self.s.pre_run_1_args), 1)
        self.assertEqual(len(self.s.pre_action_1_args), 2)
        self.assertEqual(len(self.s.pre_action_2_args), 2)
        self.assertEqual(len(self.s.pre_action_3_args), 1)
        self.assertEqual(len(self.s.post_action_1_args), 2)
        self.assertEqual(len(self.s.post_action_2_args), 2)
        self.assertEqual(len(self.s.post_action_3_args), 1)
        self.assertEqual(len(self.s.post_run_1_args), 1)

        self.assertEqual(self.s.pre_run_1_args[0], ((), {}))

        self.assertEqual(self.s.pre_action_1_args[0], (('clobber',), {}))
        self.assertEqual(self.s.pre_action_1_args[1], (('build',), {}))

        # pre_action_3 should only get called for the action it is registered
        # with.
        self.assertEqual(self.s.pre_action_3_args[0], (('clobber',), {}))

        self.assertEqual(self.s.post_action_1_args[0][0], ('clobber',))
        self.assertEqual(self.s.post_action_1_args[0][1], dict(success=True))
        self.assertEqual(self.s.post_action_1_args[1][0], ('build',))
        self.assertEqual(self.s.post_action_1_args[1][1], dict(success=True))

        # post_action_3 should only get called for the action it is registered
        # with.
        self.assertEqual(self.s.post_action_3_args[0], (('build',),
                         dict(success=True)))

        self.assertEqual(self.s.post_run_1_args[0], ((), {}))

    def test_post_always_fired(self):
        self.s = BaseScriptWithDecorators(initial_config_file='test/test.json')
        self.s.raise_during_build = 'Testing post always fired.'

        with self.assertRaises(SystemExit):
            self.s.run()

        self.assertEqual(len(self.s.pre_run_1_args), 1)
        self.assertEqual(len(self.s.pre_action_1_args), 2)
        self.assertEqual(len(self.s.post_action_1_args), 2)
        self.assertEqual(len(self.s.post_action_2_args), 2)
        self.assertEqual(len(self.s.post_run_1_args), 1)
        self.assertEqual(len(self.s.post_run_2_args), 1)

        self.assertEqual(self.s.post_action_1_args[0][1], dict(success=True))
        self.assertEqual(self.s.post_action_1_args[1][1], dict(success=False))
        self.assertEqual(self.s.post_action_2_args[1][1], dict(success=False))

    def test_pre_run_exception(self):
        self.s = BaseScriptWithDecorators(initial_config_file='test/test.json')
        self.s.raise_during_pre_run_1 = 'Error during pre run 1'

        with self.assertRaises(SystemExit):
            self.s.run()

        self.assertEqual(len(self.s.pre_run_1_args), 1)
        self.assertEqual(len(self.s.pre_action_1_args), 0)
        self.assertEqual(len(self.s.post_run_1_args), 1)
        self.assertEqual(len(self.s.post_run_2_args), 1)

    def test_pre_action_exception(self):
        self.s = BaseScriptWithDecorators(initial_config_file='test/test.json')
        self.s.raise_during_pre_action_1 = 'Error during pre 1'

        with self.assertRaises(SystemExit):
            self.s.run()

        self.assertEqual(len(self.s.pre_run_1_args), 1)
        self.assertEqual(len(self.s.pre_action_1_args), 1)
        self.assertEqual(len(self.s.pre_action_2_args), 0)
        self.assertEqual(len(self.s.post_action_1_args), 1)
        self.assertEqual(len(self.s.post_action_2_args), 1)
        self.assertEqual(len(self.s.post_run_1_args), 1)
        self.assertEqual(len(self.s.post_run_2_args), 1)

    def test_post_action_exception(self):
        self.s = BaseScriptWithDecorators(initial_config_file='test/test.json')
        self.s.raise_during_post_action_1 = 'Error during post 1'

        with self.assertRaises(SystemExit):
            self.s.run()

        self.assertEqual(len(self.s.pre_run_1_args), 1)
        self.assertEqual(len(self.s.post_action_1_args), 1)
        self.assertEqual(len(self.s.post_action_2_args), 1)
        self.assertEqual(len(self.s.post_run_1_args), 1)
        self.assertEqual(len(self.s.post_run_2_args), 1)

    def test_post_run_exception(self):
        self.s = BaseScriptWithDecorators(initial_config_file='test/test.json')
        self.s.raise_during_post_run_1 = 'Error during post run 1'

        with self.assertRaises(SystemExit):
            self.s.run()

        self.assertEqual(len(self.s.post_run_1_args), 1)
        self.assertEqual(len(self.s.post_run_2_args), 1)


# main {{{1
if __name__ == '__main__':
    unittest.main()