def test_can_parse_multiple_ranges(self):
self.assertEquals(
ranges.DecimalRange("1.1, 3").items,
[(decimal.Decimal('1.1'), decimal.Decimal('1.1')), (3, 3)])
self.assertEquals(
ranges.DecimalRange("1...2.3, 5...").items,
[(1, decimal.Decimal('2.3')), (5, None)])
def test_can_get_upper_limit(self):
self.assertEquals(
ranges.DecimalRange("1...2.1").upper_limit, decimal.Decimal('2.1'))
self.assertEquals(ranges.DecimalRange("0...").upper_limit, None)
self.assertEquals(ranges.DecimalRange("...0").upper_limit, 0)
self.assertEquals(ranges.DecimalRange("...1, 3...").upper_limit, None)
self.assertEquals(
ranges.DecimalRange("1...2, 5...9.3").upper_limit,
decimal.Decimal('9.3'))
def test_can_handle_proper_decimal_ranges(self):
self.assertEquals(
ranges.DecimalRange("1.1").items,
[(decimal.Decimal('1.1'), decimal.Decimal('1.1'))])
self.assertEquals(ranges.DecimalRange("1...").items, [(1, None)])
self.assertEquals(
ranges.DecimalRange("...1.").items, [(None, decimal.Decimal('1'))])
self.assertEquals(
ranges.DecimalRange("1.1" + "\u2026" + "2.1").items,
[(decimal.Decimal('1.1'), decimal.Decimal('2.1'))])
self.assertEquals(
ranges.DecimalRange("-1.1...2").items,
[(decimal.Decimal('-1.1'), 2)])
self.assertEquals(
ranges.DecimalRange("1.1...").items,
[(decimal.Decimal('1.1'), None)])
self.assertEquals(
ranges.DecimalRange("...1.1").items,
[(None, decimal.Decimal('1.1'))])
self.assertEquals(
ranges.DecimalRange("1.1...2.1").items,
[(decimal.Decimal('1.1'), decimal.Decimal('2.1'))])
self.assertEquals(
ranges.DecimalRange("-1.1...2.1").items,
[(decimal.Decimal('-1.1'), decimal.Decimal('2.1'))])
def __init__(self, field_name, is_allowed_to_be_empty, length_text, rule, data_format, empty_value=None):
super(DecimalFieldFormat, self).__init__(
field_name, is_allowed_to_be_empty, "", "", data_format, empty_value)
assert rule is not None, 'to specify "no rule" use "" instead of None'
self.decimal_separator = data_format.decimal_separator
self.thousands_separator = data_format.thousands_separator
self.valid_range = ranges.DecimalRange(rule, ranges.DEFAULT_DECIMAL_RANGE_TEXT)
self._length = ranges.DecimalRange(length_text)
self._precision = self.valid_range.precision
self._scale = self.valid_range.scale
def test_can_set_precision_and_scale(self):
empty_range = ranges.DecimalRange('')
self.assertEqual(empty_range.precision, ranges.DEFAULT_PRECISION)
self.assertEqual(empty_range.scale, ranges.DEFAULT_SCALE)
range_without_digits_after_dot = ranges.DecimalRange('123')
self.assertEqual(range_without_digits_after_dot.precision, 0)
self.assertEqual(range_without_digits_after_dot.scale, 3)
single_range = ranges.DecimalRange('123.45')
self.assertEqual(single_range.precision, 2)
self.assertEqual(single_range.scale, 5)
trailing_zeroes_range = ranges.DecimalRange('123.00')
self.assertEqual(trailing_zeroes_range.precision, 2)
self.assertEqual(trailing_zeroes_range.scale, 5)
negative_range = ranges.DecimalRange('-123.45')
self.assertEqual(negative_range.precision, 2)
self.assertEqual(negative_range.scale, 5)
lower_and_upper_range = ranges.DecimalRange('123.45...5432.1')
self.assertEqual(lower_and_upper_range.precision, 2)
self.assertEqual(lower_and_upper_range.scale, 6)
multi_range = ranges.DecimalRange('1.2...45.678, 56.7...1234')
self.assertEqual(multi_range.precision, 3)
self.assertEqual(multi_range.scale, 7)
def test_fails_on_value_out_of_range(self):
lower_and_upper_range = ranges.DecimalRange("-1.2...1.5")
dev_test.assert_raises_and_fnmatches(
self, errors.RangeValueError, "x is Decimal('-1.3') but must be within range: '-1.2...1.5'",
lower_and_upper_range.validate, "x", '-1.3')
self.assertRaises(errors.RangeValueError, lower_and_upper_range.validate, "x", decimal.Decimal('1.6'))
lower_range = ranges.DecimalRange("1.1...")
self.assertRaises(errors.RangeValueError, lower_range.validate, "x", 1)
upper_range = ranges.DecimalRange("...1.1")
self.assertRaises(errors.RangeValueError, upper_range.validate, "x", decimal.Decimal('1.2'))
multi_range = ranges.DecimalRange("1.1...4.9, 7.1...9")
self.assertRaises(errors.RangeValueError, multi_range.validate, "x", 1)
self.assertRaises(errors.RangeValueError, multi_range.validate, "x", 5)
self.assertRaises(errors.RangeValueError, multi_range.validate, "x", 7)
self.assertRaises(errors.RangeValueError, multi_range.validate, "x", decimal.Decimal('9.1'))
def test_can_get_lower_limit(self):
self.assertEquals(ranges.DecimalRange("5.5...9").lower_limit, decimal.Decimal('5.5'))
self.assertEquals(ranges.DecimalRange("0...").lower_limit, 0)
self.assertEquals(ranges.DecimalRange("...0").lower_limit, None)
self.assertEquals(ranges.DecimalRange("...1, 3...").lower_limit, None)
self.assertEquals(ranges.DecimalRange("5...9").lower_limit, 5)
self.assertEquals(ranges.DecimalRange("1.1...2, 5...9").lower_limit, decimal.Decimal('1.1'))
self.assertEquals(ranges.DecimalRange("5...9, 1.1...2").lower_limit, decimal.Decimal('1.1'))
def _test_can_handle_empty_range(self, description):
empty_range = ranges.DecimalRange(description)
self.assertEquals(empty_range.items, None)
self.assertEquals(empty_range.lower_limit, None)
self.assertEquals(empty_range.upper_limit, None)
self.assertIsNone(empty_range.validate("x", decimal.Decimal(ranges.MIN_DECIMAL_TEXT) - 1))
self.assertIsNone(empty_range.validate("x", decimal.Decimal('1.1')))
self.assertIsNone(empty_range.validate("x", 0))
self.assertIsNone(empty_range.validate("x", decimal.Decimal('-1.1')))
self.assertIsNone(empty_range.validate("x", decimal.Decimal(ranges.MAX_DECIMAL_TEXT) + 1))
def test_can_validate_values(self):
lower_and_upper_range = ranges.DecimalRange("-1.2...1.5")
lower_and_upper_range.validate("x", '-1.2')
lower_and_upper_range.validate("x", 0)
lower_and_upper_range.validate("x", '1.5')
lower_range = ranges.DecimalRange("1.1...")
lower_range.validate("x", '1.1')
lower_range.validate("x", 2)
lower_range.validate("x", 2 ** 32)
upper_range = ranges.DecimalRange("...1.1")
upper_range.validate("x", '1.1')
upper_range.validate("x", - 2)
upper_range.validate("x", - (2 ** 32) - 1)
multi_range = ranges.DecimalRange("1.1...4.9, 7.1...9")
multi_range.validate("x", '1.1')
multi_range.validate("x", '4.9')
multi_range.validate("x", '7.1')
multi_range.validate("x", 9)
def test_can_handle_scientific_notation(self):
decimal_range = ranges.DecimalRange('1.23...1e4')
self.assertEqual(7, decimal_range.scale)
self.assertEqual(2, decimal_range.precision)
def test_can_process_empty_range(self):
self.assertEqual(ranges.DecimalRange("").items, None)
def test_can_override_default_range(self):
self.assertEquals(ranges.DecimalRange("1.1...2", "2...3").items, [(decimal.Decimal('1.1'), 2)])
def test_can_use_default_range(self):
self.assertEquals(ranges.DecimalRange("", "2.1...3").items, [(decimal.Decimal('2.1'), 3)])
def test_can_display_lower_is_upper_length(self):
self.assertEqual(six.text_type(ranges.DecimalRange("9.9...9.9")),
"9.9...9.9")
def test_fails_on_non_decimal_value_to_validate(self):
decimal_range = ranges.DecimalRange("1.1...2.2")
self.assertRaises(errors.RangeValueError, decimal_range.validate, "x",
"a")
def test_can_represent_range_containing_none(self):
none_range = ranges.DecimalRange(None)
self.assertEqual(six.text_type(none_range), six.text_type(None))
upper_none_range = ranges.DecimalRange("1...")
upper_none_range.items.append(None)
self.assertEqual(six.text_type(upper_none_range), "1, None")
def test_can_display_multi_range(self):
self.assertEqual(
six.text_type(ranges.DecimalRange("9.1...10.9, 11...13")),
"9.1...10.9, 11.0...13.0")
