How to use the unittest2.result.TestResult function in unittest2

def defaultTestResult(self):
        return result.TestResult()

def __init__(self, stream):
        self.stream = stream

    def __getattr__(self, attr):
        if attr in ('stream', '__getstate__'):
            raise AttributeError(attr)
        return getattr(self.stream, attr)

    def writeln(self, arg=None):
        if arg:
            self.write(arg)
        self.write('\n')  # text-mode streams translate to \r\n if needed


class TextTestResult(result.TestResult):
    """A test result class that can print formatted text results to a stream.

    Used by TextTestRunner.
    """
    separator1 = '=' * 70
    separator2 = '-' * 70

    def __init__(self, stream, descriptions, verbosity):
        super(TextTestResult, self).__init__()
        self.stream = stream
        self.showAll = verbosity > 1
        self.dots = verbosity == 1
        self.descriptions = descriptions
        self.progressbar = None

        if self.dots:

def defaultTestResult(self):
        return result.TestResult()

def defaultTestResult(self):
        return result.TestResult()

def defaultTestResult(self):
        return result.TestResult()

def defaultTestResult(self):
        return result.TestResult()

"""Used to decorate file-like objects with a handy 'writeln' method"""
    def __init__(self,stream):
        self.stream = stream

    def __getattr__(self, attr):
        if attr in ('stream', '__getstate__'):
            raise AttributeError(attr)
        return getattr(self.stream,attr)

    def writeln(self, arg=None):
        if arg:
            self.write(arg)
        self.write('\n') # text-mode streams translate to \r\n if needed


class TextTestResult(result.TestResult):
    """A test result class that can print formatted text results to a stream.

    Used by TextTestRunner.
    """
    separator1 = '=' * 70
    separator2 = '-' * 70

    def __init__(self, stream, descriptions, verbosity):
        super(TextTestResult, self).__init__()
        self.stream = stream
        self.showAll = verbosity > 1
        self.dots = verbosity == 1
        self.descriptions = descriptions

    def getDescription(self, test):
        doc_first_line = test.shortDescription()