1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
import decimal
from django.core.exceptions import ValidationError
from django.forms import DecimalField, NumberInput, Widget
from django.test import SimpleTestCase, override_settings
from django.utils import formats, translation
from . import FormFieldAssertionsMixin
class DecimalFieldTest(FormFieldAssertionsMixin, SimpleTestCase):
def test_decimalfield_1(self):
f = DecimalField(max_digits=4, decimal_places=2)
self.assertWidgetRendersTo(f, '<input id="id_f" step="0.01" type="number" name="f" required>')
with self.assertRaisesMessage(ValidationError, "'This field is required.'"):
f.clean('')
with self.assertRaisesMessage(ValidationError, "'This field is required.'"):
f.clean(None)
self.assertEqual(f.clean('1'), decimal.Decimal("1"))
self.assertIsInstance(f.clean('1'), decimal.Decimal)
self.assertEqual(f.clean('23'), decimal.Decimal("23"))
self.assertEqual(f.clean('3.14'), decimal.Decimal("3.14"))
self.assertEqual(f.clean(3.14), decimal.Decimal("3.14"))
self.assertEqual(f.clean(decimal.Decimal('3.14')), decimal.Decimal("3.14"))
self.assertEqual(f.clean('1.0 '), decimal.Decimal("1.0"))
self.assertEqual(f.clean(' 1.0'), decimal.Decimal("1.0"))
self.assertEqual(f.clean(' 1.0 '), decimal.Decimal("1.0"))
with self.assertRaisesMessage(ValidationError, "'Ensure that there are no more than 4 digits in total.'"):
f.clean('123.45')
with self.assertRaisesMessage(ValidationError, "'Ensure that there are no more than 2 decimal places.'"):
f.clean('1.234')
msg = "'Ensure that there are no more than 2 digits before the decimal point.'"
with self.assertRaisesMessage(ValidationError, msg):
f.clean('123.4')
self.assertEqual(f.clean('-12.34'), decimal.Decimal("-12.34"))
with self.assertRaisesMessage(ValidationError, "'Ensure that there are no more than 4 digits in total.'"):
f.clean('-123.45')
self.assertEqual(f.clean('-.12'), decimal.Decimal("-0.12"))
self.assertEqual(f.clean('-00.12'), decimal.Decimal("-0.12"))
self.assertEqual(f.clean('-000.12'), decimal.Decimal("-0.12"))
with self.assertRaisesMessage(ValidationError, "'Ensure that there are no more than 2 decimal places.'"):
f.clean('-000.123')
with self.assertRaisesMessage(ValidationError, "'Ensure that there are no more than 4 digits in total.'"):
f.clean('-000.12345')
self.assertEqual(f.max_digits, 4)
self.assertEqual(f.decimal_places, 2)
self.assertIsNone(f.max_value)
self.assertIsNone(f.min_value)
def test_enter_a_number_error(self):
f = DecimalField(max_value=1, max_digits=4, decimal_places=2)
values = (
'-NaN', 'NaN', '+NaN',
'-sNaN', 'sNaN', '+sNaN',
'-Inf', 'Inf', '+Inf',
'-Infinity', 'Infinity', '+Infinity',
'a', 'łąść', '1.0a', '--0.12',
)
for value in values:
with self.subTest(value=value), self.assertRaisesMessage(ValidationError, "'Enter a number.'"):
f.clean(value)
def test_decimalfield_2(self):
f = DecimalField(max_digits=4, decimal_places=2, required=False)
self.assertIsNone(f.clean(''))
self.assertIsNone(f.clean(None))
self.assertEqual(f.clean('1'), decimal.Decimal("1"))
self.assertEqual(f.max_digits, 4)
self.assertEqual(f.decimal_places, 2)
self.assertIsNone(f.max_value)
self.assertIsNone(f.min_value)
def test_decimalfield_3(self):
f = DecimalField(
max_digits=4, decimal_places=2,
max_value=decimal.Decimal('1.5'),
min_value=decimal.Decimal('0.5')
)
self.assertWidgetRendersTo(
f,
'<input step="0.01" name="f" min="0.5" max="1.5" type="number" id="id_f" required>',
)
with self.assertRaisesMessage(ValidationError, "'Ensure this value is less than or equal to 1.5.'"):
f.clean('1.6')
with self.assertRaisesMessage(ValidationError, "'Ensure this value is greater than or equal to 0.5.'"):
f.clean('0.4')
self.assertEqual(f.clean('1.5'), decimal.Decimal("1.5"))
self.assertEqual(f.clean('0.5'), decimal.Decimal("0.5"))
self.assertEqual(f.clean('.5'), decimal.Decimal("0.5"))
self.assertEqual(f.clean('00.50'), decimal.Decimal("0.50"))
self.assertEqual(f.max_digits, 4)
self.assertEqual(f.decimal_places, 2)
self.assertEqual(f.max_value, decimal.Decimal('1.5'))
self.assertEqual(f.min_value, decimal.Decimal('0.5'))
def test_decimalfield_4(self):
f = DecimalField(decimal_places=2)
with self.assertRaisesMessage(ValidationError, "'Ensure that there are no more than 2 decimal places.'"):
f.clean('0.00000001')
def test_decimalfield_5(self):
f = DecimalField(max_digits=3)
# Leading whole zeros "collapse" to one digit.
self.assertEqual(f.clean('0000000.10'), decimal.Decimal("0.1"))
# But a leading 0 before the . doesn't count towards max_digits
self.assertEqual(f.clean('0000000.100'), decimal.Decimal("0.100"))
# Only leading whole zeros "collapse" to one digit.
self.assertEqual(f.clean('000000.02'), decimal.Decimal('0.02'))
with self.assertRaisesMessage(ValidationError, "'Ensure that there are no more than 3 digits in total.'"):
f.clean('000000.0002')
self.assertEqual(f.clean('.002'), decimal.Decimal("0.002"))
def test_decimalfield_6(self):
f = DecimalField(max_digits=2, decimal_places=2)
self.assertEqual(f.clean('.01'), decimal.Decimal(".01"))
msg = "'Ensure that there are no more than 0 digits before the decimal point.'"
with self.assertRaisesMessage(ValidationError, msg):
f.clean('1.1')
def test_decimalfield_scientific(self):
f = DecimalField(max_digits=4, decimal_places=2)
with self.assertRaisesMessage(ValidationError, "Ensure that there are no more"):
f.clean('1E+2')
self.assertEqual(f.clean('1E+1'), decimal.Decimal('10'))
self.assertEqual(f.clean('1E-1'), decimal.Decimal('0.1'))
self.assertEqual(f.clean('0.546e+2'), decimal.Decimal('54.6'))
def test_decimalfield_widget_attrs(self):
f = DecimalField(max_digits=6, decimal_places=2)
self.assertEqual(f.widget_attrs(Widget()), {})
self.assertEqual(f.widget_attrs(NumberInput()), {'step': '0.01'})
f = DecimalField(max_digits=10, decimal_places=0)
self.assertEqual(f.widget_attrs(NumberInput()), {'step': '1'})
f = DecimalField(max_digits=19, decimal_places=19)
self.assertEqual(f.widget_attrs(NumberInput()), {'step': '1e-19'})
f = DecimalField(max_digits=20)
self.assertEqual(f.widget_attrs(NumberInput()), {'step': 'any'})
f = DecimalField(max_digits=6, widget=NumberInput(attrs={'step': '0.01'}))
self.assertWidgetRendersTo(f, '<input step="0.01" name="f" type="number" id="id_f" required>')
def test_decimalfield_localized(self):
"""
A localized DecimalField's widget renders to a text input without
number input specific attributes.
"""
f = DecimalField(localize=True)
self.assertWidgetRendersTo(f, '<input id="id_f" name="f" type="text" required>')
def test_decimalfield_changed(self):
f = DecimalField(max_digits=2, decimal_places=2)
d = decimal.Decimal("0.1")
self.assertFalse(f.has_changed(d, '0.10'))
self.assertTrue(f.has_changed(d, '0.101'))
with translation.override('fr'), self.settings(USE_L10N=True):
f = DecimalField(max_digits=2, decimal_places=2, localize=True)
localized_d = formats.localize_input(d) # -> '0,1' in French
self.assertFalse(f.has_changed(d, localized_d))
@override_settings(USE_L10N=False, DECIMAL_SEPARATOR=',')
def test_decimalfield_support_decimal_separator(self):
f = DecimalField(localize=True)
self.assertEqual(f.clean('1001,10'), decimal.Decimal("1001.10"))
self.assertEqual(f.clean('1001.10'), decimal.Decimal("1001.10"))
@override_settings(USE_L10N=False, DECIMAL_SEPARATOR=',', USE_THOUSAND_SEPARATOR=True,
THOUSAND_SEPARATOR='.')
def test_decimalfield_support_thousands_separator(self):
f = DecimalField(localize=True)
self.assertEqual(f.clean('1.001,10'), decimal.Decimal("1001.10"))
msg = "'Enter a number.'"
with self.assertRaisesMessage(ValidationError, msg):
f.clean('1,001.1')
|
