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import time

import pytest

import progressbar

def test_list():

'''Progressbar can guess max_value automatically.'''

p = progressbar.ProgressBar()

for _ in p(range(10)):

time.sleep(0.001)

def test_iterator_with_max_value():

'''Progressbar can't guess max_value.'''

p = progressbar.ProgressBar(max_value=10)

for _ in p(iter(range(10))):

time.sleep(0.001)

def test_iterator_without_max_value_error():

'''Progressbar can't guess max_value.'''

p = progressbar.ProgressBar()

for _ in p(iter(range(10))):

time.sleep(0.001)

assert p.max_value is progressbar.UnknownLength

def test_iterator_without_max_value():

'''Progressbar can't guess max_value.'''

p = progressbar.ProgressBar(widgets=[

progressbar.AnimatedMarker(),

progressbar.FormatLabel('%(value)d'),

progressbar.BouncingBar(),

progressbar.BouncingBar(marker=progressbar.RotatingMarker()),

])

for _ in p(iter(range(10))):

time.sleep(0.001)

def test_iterator_with_incorrect_max_value():

'''Progressbar can't guess max_value.'''

p = progressbar.ProgressBar(max_value=10)

with pytest.raises(ValueError):

for _ in p(iter(range(20))):

time.sleep(0.001)

def test_adding_value():

p = progressbar.ProgressBar(max_value=10)

p.start()

p.update(5)

p += 2

p.increment(2)

with pytest.raises(ValueError):

p += 5