def __init__(self, cwd, total_tests, stream, config=None):
super(ProgressiveResult, self).__init__(stream, None, 0, config=config)
self._cwd = cwd
self._options = config.options
self._term = Terminal(stream=stream,
force_styling=config.options.with_styling)
if self._term.is_a_tty or self._options.with_bar:
# 1 in case test counting failed and returned 0
self.bar = ProgressBar(total_tests or 1, self._term,
config.options.bar_filled_color,
config.options.bar_empty_color)
else:
self.bar = NullProgressBar()
# Declare errorclass-savviness so ErrorClassPlugins don't monkeypatch
# half my methods away:
self.errorClasses = {}
