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test_unknown_length.py

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import progressbar

from progressbar import ProgressBar, UnknownLength

def test_unknown_length():

pb = ProgressBar(widgets=[progressbar.AnimatedMarker()],

max_value=UnknownLength)

assert pb.max_value is UnknownLength

def test_unknown_length_default_widgets():

# The default widgets picked should work without a known max_value

pb = ProgressBar(max_value=UnknownLength).start()

for i in range(60):

pb.update(i)

pb.finish()

def test_unknown_length_at_start():

# The default widgets should be picked after we call .start()

pb = ProgressBar().start(max_value=UnknownLength)

for i in range(60):

pb.update(i)

pb.finish()

pb2 = ProgressBar().start(max_value=UnknownLength)

assert any([isinstance(w, progressbar.Bar) for w in pb2.widgets])