def test_nan_interval_extreme(self):
expected_message = 'NaN is not a valid interval upper bound.'
with self.assertRaises(ValueError) as ex:
rf.limited_len([2] * 10, 5, float('nan'))
self.assertEqual(expected_message, str(ex.exception))
expected_message = 'NaN is not a valid interval lower bound.'
with self.assertRaises(ValueError) as ex:
rf.limited_len([2] * 10, float('nan'), 5)
self.assertEqual(expected_message, str(ex.exception))
def test_custom_exception_type(self):
expected_message = 'Length of value must be in range [100, 1000]. ' \
'1 found instead.'
with self.assertRaises(FileNotFoundError) as ex:
rf.limited_len([2], 100, 1000, ex=FileNotFoundError)
self.assertEqual(expected_message, str(ex.exception))
expected_message = 'Length of HELLO must be in range [100, 1000]. ' \
'1 found instead.'
with self.assertRaises(FileNotFoundError) as ex:
rf.limited_len([2], 100, 1000, name='HELLO', ex=FileNotFoundError)
self.assertEqual(expected_message, str(ex.exception))
def test_custom_value_name(self):
expected_message = 'Length of HELLO must be in range [100, 1000]. ' \
'2 found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited_len([2] * 2, 100, 1000, 'HELLO')
self.assertEqual(expected_message, str(ex.exception))
expected_message = 'Length of HELLO must be in range [100, +inf[. ' \
'2 found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited_len([2] * 2, 100, None, 'HELLO')
self.assertEqual(expected_message, str(ex.exception))
expected_message = 'Length of HELLO must be in range [100, 1000]. ' \
'2000 found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited_len([2] * 2000, 100, 1000, 'HELLO')
self.assertEqual(expected_message, str(ex.exception))
expected_message = 'Length of HELLO must be in range ]-inf, 1000]. ' \
'2000 found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited_len([2] * 2000, None, 1000, 'HELLO')
self.assertEqual(expected_message, str(ex.exception))
def test_unsorted_bounds(self):
expected_message = 'Interval extremes [20, 15] not in order.'
with self.assertRaises(ValueError) as ex:
rf.limited_len([2] * 10, 20, 15)
self.assertEqual(expected_message, str(ex.exception))
def test_double_none(self):
expected_message = '[min, max] interval must be closed on at least ' \
'one extreme.'
with self.assertRaises(ValueError) as ex:
rf.limited_len([2] * 10, None, None)
self.assertEqual(expected_message, str(ex.exception))
def test_infinity_instead_of_none(self):
self.assertEqual([2] * 10, rf.limited_len([2] * 10, 2, float('+inf')))
def test_negative_max_length(self):
expected_message = 'Length upper bound must be non-negative. ' \
'-3 found instead.'
with self.assertRaises(ValueError) as ex:
rf.limited_len([2] * 2, 0.0, -3)
self.assertEqual(expected_message, str(ex.exception))
def test_above_open_range_on_lower_bound(self):
expected_message = 'Length of value must be in range ]-inf, 1000]. ' \
'2000 found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited_len([2] * 2000, None, 1000)
self.assertEqual(expected_message, str(ex.exception))
def test_above_closed_range(self):
expected_message = 'Length of value must be in range [100, 1000]. ' \
'2000 found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited_len([2] * 2000, 100, 1000)
self.assertEqual(expected_message, str(ex.exception))
def test_below_open_range_on_upper_bound(self):
expected_message = 'Length of value must be in range [100, +inf[. ' \
'2 found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited_len([2] * 2, 100, None)
self.assertEqual(expected_message, str(ex.exception))
def test_in_open_range_on_lower_bound(self):
for i in range(100):
self.assertEqual([2] * i, rf.limited_len([2] * i, None, 99))
def test_in_open_range_upper_bound(self):
for i in range(100):
self.assertEqual([2] * i, rf.limited_len([2] * i, 0, None))
def test_in_closed_range(self):
for i in range(100):
self.assertEqual([2] * i, rf.limited_len([2] * i, 0, 99))