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How to use _assert_is_all_blank_lines method in autotest

Best Python code snippet using autotest_python

monitors_util.py

Source:monitors_util.py

...60        formatted_msg = msg_type + "\t" + msg_template % params61        timestamped_msg = prepend_timestamp(formatted_msg, timestamp_format)62        print >> warnfile, timestamped_msg63    return alert64def _assert_is_all_blank_lines(lines, source_file):65    if sum(len(line.strip()) for line in lines) > 0:66        raise ValueError('warning patterns are not separated by blank lines '67                         'in %s' % source_file)68def _read_overrides(overrides_file):69    """70    Read pattern overrides from overrides_file, which may be None.  Overrides71    files are expected to have the format:72    <old regex> <newline> <new regex> <newline> <newline>73            old regex = a regex from the patterns file74            new regex = the regex to replace it75    Lines beginning with # are ignored.76    Returns a dict mapping old regexes to their replacements.77    """78    if not overrides_file:79        return {}80    overrides_lines = [line for line in overrides_file.readlines()81                       if not line.startswith('#')]82    overrides_pairs = zip(overrides_lines[0::3], overrides_lines[1::3])83    _assert_is_all_blank_lines(overrides_lines[2::3], overrides_file)84    return dict(overrides_pairs)85def build_alert_hooks(patterns_file, warnfile, overrides_file=None):86    """Parse data in patterns file and transform into alert_hook list.87    Args:88      patterns_file: file; File to read alert pattern definitions from.89      warnfile: file; File to configure alert function to write warning to.90    Returns:91      list; Regex to alert function mapping.92          [(regex, alert_function), ...]93    """94    pattern_lines = patterns_file.readlines()95    # expected pattern format:96    # <msgtype> <newline> <regex> <newline> <alert> <newline> <newline>97    #   msgtype = a string categorizing the type of the message - used for98    #             enabling/disabling specific categories of warnings99    #   regex   = a python regular expression100    #   alert   = a string describing the alert message101    #             if the regex matches the line, this displayed warning will102    #             be the result of (alert % match.groups())103    patterns = zip(pattern_lines[0::4], pattern_lines[1::4],104                   pattern_lines[2::4])105    _assert_is_all_blank_lines(pattern_lines[3::4], patterns_file)106    overrides_map = _read_overrides(overrides_file)107    hooks = []108    for msgtype, regex, alert in patterns:109        regex = overrides_map.get(regex, regex)110        regex = re.compile(regex.rstrip('\n'))111        alert_function = make_alert(warnfile, msgtype.rstrip('\n'),112                                    alert.rstrip('\n'))113        hooks.append((regex, alert_function))114    return hooks115def build_alert_hooks_from_path(patterns_path, warnfile):116    """117    Same as build_alert_hooks, but accepts a path to a patterns file and118    automatically finds the corresponding site overrides file if one exists.119    """...

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