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import os
from subprocess import call
import unittest
from testpath.commands import *
class CommandsTests(unittest.TestCase):
def test_assert_calls(self):
initial_path = os.environ['PATH']
with assert_calls('foobar'):
call(['foobar'])
with self.assertRaises(AssertionError):
with assert_calls('foo'):
pass
# The context manager should clean up $PATH again
self.assertEqual(os.environ['PATH'], initial_path)
def test_assert_calls_with_args(self):
with assert_calls('foo', ['bar', 'baz']):
call(['foo', 'bar', 'baz'])
with self.assertRaises(AssertionError):
with assert_calls('cheese', ['crackers']):
call(['cheese', 'biscuits'])
call(['cheese', 'wine'])
def test_assert_calls_twice(self):
with assert_calls('git'):
call(['git'])
with self.assertRaises(AssertionError):
with assert_calls('git'):
pass
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