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# Copyright: See the LICENSE file.
import itertools
import unittest
from factory import utils
class ImportObjectTestCase(unittest.TestCase):
def test_datetime(self):
imported = utils.import_object('datetime', 'date')
import datetime
d = datetime.date
self.assertEqual(d, imported)
def test_unknown_attribute(self):
with self.assertRaises(AttributeError):
utils.import_object('datetime', 'foo')
def test_invalid_module(self):
with self.assertRaises(ImportError):
utils.import_object('this-is-an-invalid-module', '__name__')
class LogPPrintTestCase(unittest.TestCase):
def test_nothing(self):
txt = str(utils.log_pprint())
self.assertEqual('', txt)
def test_only_args(self):
txt = str(utils.log_pprint((1, 2, 3)))
self.assertEqual('1, 2, 3', txt)
def test_only_kwargs(self):
txt = str(utils.log_pprint(kwargs={'a': 1, 'b': 2}))
self.assertIn(txt, ['a=1, b=2', 'b=2, a=1'])
def test_bytes_args(self):
txt = str(utils.log_pprint((b'\xe1\xe2',)))
expected = "b'\\xe1\\xe2'"
self.assertEqual(expected, txt)
def test_text_args(self):
txt = str(utils.log_pprint(('ŧêßŧ',)))
expected = "'ŧêßŧ'"
self.assertEqual(expected, txt)
def test_bytes_kwargs(self):
txt = str(utils.log_pprint(kwargs={'x': b'\xe1\xe2', 'y': b'\xe2\xe1'}))
expected1 = "x=b'\\xe1\\xe2', y=b'\\xe2\\xe1'"
expected2 = "y=b'\\xe2\\xe1', x=b'\\xe1\\xe2'"
self.assertIn(txt, (expected1, expected2))
def test_text_kwargs(self):
txt = str(utils.log_pprint(kwargs={'x': 'ŧêßŧ', 'y': 'ŧßêŧ'}))
expected1 = "x='ŧêßŧ', y='ŧßêŧ'"
expected2 = "y='ŧßêŧ', x='ŧêßŧ'"
self.assertIn(txt, (expected1, expected2))
class ResetableIteratorTestCase(unittest.TestCase):
def test_no_reset(self):
i = utils.ResetableIterator([1, 2, 3])
self.assertEqual([1, 2, 3], list(i))
def test_no_reset_new_iterator(self):
i = utils.ResetableIterator([1, 2, 3])
iterator = iter(i)
self.assertEqual(1, next(iterator))
self.assertEqual(2, next(iterator))
iterator2 = iter(i)
self.assertEqual(3, next(iterator2))
def test_infinite(self):
i = utils.ResetableIterator(itertools.cycle([1, 2, 3]))
iterator = iter(i)
values = [next(iterator) for _i in range(10)]
self.assertEqual([1, 2, 3, 1, 2, 3, 1, 2, 3, 1], values)
def test_reset_simple(self):
i = utils.ResetableIterator([1, 2, 3])
iterator = iter(i)
self.assertEqual(1, next(iterator))
self.assertEqual(2, next(iterator))
i.reset()
self.assertEqual(1, next(iterator))
self.assertEqual(2, next(iterator))
self.assertEqual(3, next(iterator))
def test_reset_at_begin(self):
i = utils.ResetableIterator([1, 2, 3])
iterator = iter(i)
i.reset()
i.reset()
self.assertEqual(1, next(iterator))
self.assertEqual(2, next(iterator))
self.assertEqual(3, next(iterator))
def test_reset_at_end(self):
i = utils.ResetableIterator([1, 2, 3])
iterator = iter(i)
self.assertEqual(1, next(iterator))
self.assertEqual(2, next(iterator))
self.assertEqual(3, next(iterator))
i.reset()
self.assertEqual(1, next(iterator))
self.assertEqual(2, next(iterator))
self.assertEqual(3, next(iterator))
def test_reset_after_end(self):
i = utils.ResetableIterator([1, 2, 3])
iterator = iter(i)
self.assertEqual(1, next(iterator))
self.assertEqual(2, next(iterator))
self.assertEqual(3, next(iterator))
with self.assertRaises(StopIteration):
next(iterator)
i.reset()
# Previous iter() has stopped
iterator = iter(i)
self.assertEqual(1, next(iterator))
self.assertEqual(2, next(iterator))
self.assertEqual(3, next(iterator))
def test_reset_twice(self):
i = utils.ResetableIterator([1, 2, 3, 4, 5])
iterator = iter(i)
self.assertEqual(1, next(iterator))
self.assertEqual(2, next(iterator))
i.reset()
self.assertEqual(1, next(iterator))
self.assertEqual(2, next(iterator))
self.assertEqual(3, next(iterator))
self.assertEqual(4, next(iterator))
i.reset()
self.assertEqual(1, next(iterator))
self.assertEqual(2, next(iterator))
self.assertEqual(3, next(iterator))
self.assertEqual(4, next(iterator))
def test_reset_shorter(self):
i = utils.ResetableIterator([1, 2, 3, 4, 5])
iterator = iter(i)
self.assertEqual(1, next(iterator))
self.assertEqual(2, next(iterator))
self.assertEqual(3, next(iterator))
self.assertEqual(4, next(iterator))
i.reset()
self.assertEqual(1, next(iterator))
self.assertEqual(2, next(iterator))
i.reset()
self.assertEqual(1, next(iterator))
self.assertEqual(2, next(iterator))
self.assertEqual(3, next(iterator))
self.assertEqual(4, next(iterator))
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