def test_nan_interval_extreme(self):
expected_message = 'NaN is not a valid interval upper bound.'
with self.assertRaises(ValueError) as ex:
rf.limited(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(10, float('nan'), 5)
self.assertEqual(expected_message, str(ex.exception))
def test_custom_exception_type(self):
expected_message = 'Value must be in range [100, 1000]. ' \
'2 found instead.'
with self.assertRaises(FileNotFoundError) as ex:
rf.limited(2, 100, 1000, ex=FileNotFoundError)
self.assertEqual(expected_message, str(ex.exception))
expected_message = 'HELLO must be in range [100, 1000]. ' \
'2 found instead.'
with self.assertRaises(FileNotFoundError) as ex:
rf.limited(2, 100, 1000, name='HELLO', ex=FileNotFoundError)
self.assertEqual(expected_message, str(ex.exception))
def test_minus_infinity(self):
minf = float('-inf')
expected_message = 'Value must be in range [0.0, 1.0]. ' \
'-inf found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited(minf, 0.0, 1.0)
self.assertEqual(expected_message, str(ex.exception))
expected_message = 'Value must be in range [0.0, +inf[. ' \
'-inf found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited(minf, 0.0, None)
self.assertEqual(expected_message, str(ex.exception))
self.assertEqual(minf, rf.limited(minf, None, 0))
def test_custom_value_name(self):
expected_message = 'HELLO must be in range [100, 1000]. ' \
'2 found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited(2, 100, 1000, 'HELLO')
self.assertEqual(expected_message, str(ex.exception))
expected_message = 'HELLO must be in range [100, +inf[. ' \
'2 found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited(2, 100, None, 'HELLO')
self.assertEqual(expected_message, str(ex.exception))
expected_message = 'HELLO must be in range [100, 1000]. ' \
'2000 found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited(2000, 100, 1000, 'HELLO')
self.assertEqual(expected_message, str(ex.exception))
expected_message = 'HELLO must be in range ]-inf, 1000]. ' \
'2000 found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited(2000, None, 1000, 'HELLO')
self.assertEqual(expected_message, str(ex.exception))
def test_nan(self):
nan = float('nan')
expected_message = 'Value must be in range [0.0, 1.0]. ' \
'nan found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited(nan, 0.0, 1.0)
self.assertEqual(expected_message, str(ex.exception))
expected_message = 'Value must be in range [0.0, +inf[. ' \
'nan found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited(nan, 0.0, None)
self.assertEqual(expected_message, str(ex.exception))
expected_message = 'Value must be in range ]-inf, 0]. ' \
'nan found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited(nan, None, 0)
self.assertEqual(expected_message, str(ex.exception))
def test_custom_exception_type_does_not_affect_dtype(self):
with self.assertRaises(FileNotFoundError) as ex:
rf.limited(2.0, 100, 1000, dtype=float, ex=FileNotFoundError)
with self.assertRaises(TypeError) as ex:
rf.limited(2.0, 100, 1000, dtype=int, ex=FileNotFoundError)
def test_enforce_type(self):
self.assertEqual(2, rf.limited(2, 0, 10, dtype=int))
expected_message = 'Value must be of type int. float found instead.'
with self.assertRaises(TypeError) as ex:
rf.limited(2.0, 0, 10, dtype=int)
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(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(10, None, None)
self.assertEqual(expected_message, str(ex.exception))
def test_infinity_instead_of_none(self):
self.assertEqual(10, rf.limited(10, float('-inf'), 20))
def test_above_open_range_on_lower_bound(self):
expected_message = 'Value must be in range ]-inf, 1000]. ' \
'2000 found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited(2000, None, 1000)
self.assertEqual(expected_message, str(ex.exception))
def test_above_closed_range(self):
expected_message = 'Value must be in range [100, 1000]. ' \
'2000 found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited(2000, 100, 1000)
self.assertEqual(expected_message, str(ex.exception))
def test_below_open_range_on_upper_bound(self):
expected_message = 'Value must be in range [100, +inf[. ' \
'2 found instead.'
with self.assertRaises(rf.RangeError) as ex:
rf.limited(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(i, rf.limited(i, None, 99))
for i in range(100):
self.assertEqual(i + 0.1, rf.limited(i + 0.1, None, 99.2))
def test_in_open_range_upper_bound(self):
for i in range(100):
self.assertEqual(i, rf.limited(i, 0, None))
for i in range(100):
self.assertEqual(i + 0.1, rf.limited(i + 0.1, 0, None))
def test_in_closed_range(self):
for i in range(100):
self.assertEqual(i, rf.limited(i, 0, 99))
for i in range(100):
self.assertEqual(i + 0.1, rf.limited(i + 0.1, 0, 100))