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import datetime as dt
import decimal
import unittest
from datetime import datetime, time, timedelta, tzinfo
import django
import pytz
from django import forms
from django.test import TestCase, override_settings
from django.utils import timezone
from django_filters.fields import (
BaseCSVField,
BaseRangeField,
ChoiceField,
DateRangeField,
DateTimeRangeField,
IsoDateTimeField,
IsoDateTimeRangeField,
Lookup,
LookupChoiceField,
RangeField,
TimeRangeField,
)
from django_filters.widgets import BaseCSVWidget, CSVWidget, RangeWidget
def to_d(float_value):
return decimal.Decimal("%.2f" % float_value)
class LookupTests(TestCase):
def test_empty_attrs(self):
with self.assertRaisesMessage(ValueError, ""):
Lookup(None, None)
with self.assertRaisesMessage(ValueError, ""):
Lookup("", "")
def test_empty_value(self):
with self.assertRaisesMessage(ValueError, ""):
Lookup("", "exact")
def test_empty_lookup_expr(self):
with self.assertRaisesMessage(ValueError, ""):
Lookup("Value", "")
class RangeFieldTests(TestCase):
def test_field(self):
f = RangeField()
self.assertEqual(len(f.fields), 2)
def test_clean(self):
w = RangeWidget()
f = RangeField(widget=w, required=False)
self.assertEqual(f.clean(["12.34", "55"]), slice(to_d(12.34), to_d(55)))
self.assertIsNone(f.clean([]))
class ChoiceFieldTests(TestCase):
def test_callable_choices_is_lazy(self):
def choices():
self.fail("choices should not be called during initialization")
ChoiceField(choices=choices)
class DateRangeFieldTests(TestCase):
def test_field(self):
f = DateRangeField()
self.assertEqual(len(f.fields), 2)
@override_settings(USE_TZ=False)
def test_clean(self):
w = RangeWidget()
f = DateRangeField(widget=w, required=False)
self.assertEqual(
f.clean(["2015-01-01", "2015-01-10"]),
slice(
datetime(2015, 1, 1, 0, 0, 0), datetime(2015, 1, 10, 23, 59, 59, 999999)
),
)
self.assertIsNone(f.clean([]))
class DateTimeRangeFieldTests(TestCase):
def test_field(self):
f = DateTimeRangeField()
self.assertEqual(len(f.fields), 2)
@override_settings(USE_TZ=False)
def test_clean(self):
w = RangeWidget()
f = DateTimeRangeField(widget=w)
self.assertEqual(
f.clean(["2015-01-01 10:30", "2015-01-10 8:45"]),
slice(datetime(2015, 1, 1, 10, 30, 0), datetime(2015, 1, 10, 8, 45, 0)),
)
class IsoDateTimeRangeFieldTests(TestCase):
def test_field(self):
f = IsoDateTimeRangeField()
self.assertEqual(len(f.fields), 2)
def test_clean(self):
w = RangeWidget()
f = IsoDateTimeRangeField(widget=w)
expected = slice(
datetime(2015, 1, 1, 9, 30, 1, 123000, tzinfo=dt.timezone.utc),
datetime(2015, 1, 10, 7, 45, 2, 345000, tzinfo=dt.timezone.utc),
)
actual = f.clean(
["2015-01-01T10:30:01.123000+01:00", "2015-01-10T08:45:02.345000+01:00"]
)
self.assertEqual(expected, actual)
class TimeRangeFieldTests(TestCase):
def test_field(self):
f = DateRangeField()
self.assertEqual(len(f.fields), 2)
def test_clean(self):
w = RangeWidget()
f = TimeRangeField(widget=w)
self.assertEqual(
f.clean(["10:15", "12:30"]), slice(time(10, 15, 0), time(12, 30, 0))
)
class LookupChoiceFieldTests(TestCase):
def test_field(self):
inner = forms.DecimalField()
f = LookupChoiceField(inner, [("gt", "gt"), ("lt", "lt")])
self.assertEqual(len(f.fields), 2)
def test_clean(self):
inner = forms.DecimalField()
f = LookupChoiceField(inner, [("gt", "gt"), ("lt", "lt")], required=False)
self.assertEqual(f.clean(["12.34", "lt"]), Lookup(to_d(12.34), "lt"))
self.assertEqual(f.clean([]), None)
with self.assertRaisesMessage(forms.ValidationError, "Select a lookup."):
f.clean(["12.34", ""])
def test_render_used_html5(self):
inner = forms.DecimalField()
f = LookupChoiceField(inner, [("gt", "gt"), ("lt", "lt")], empty_label=None)
self.assertHTMLEqual(
f.widget.render("price", ""),
"""
<input type="number" step="any" name="price" />
<select name="price_lookup">
<option value="gt">gt</option>
<option value="lt">lt</option>
</select>""",
)
self.assertHTMLEqual(
f.widget.render("price", ["abc", "lt"]),
"""
<input type="number" step="any" name="price" value="abc" />
<select name="price_lookup">
<option value="gt">gt</option>
<option selected="selected" value="lt">lt</option>
</select>""",
)
class IsoDateTimeFieldTests(TestCase):
reference_str = "2015-07-19T13:34:51.759"
reference_dt = datetime(2015, 7, 19, 13, 34, 51, 759000)
field = IsoDateTimeField()
def parse_input(self, value):
return self.field.strptime(value, IsoDateTimeField.ISO_8601)
def test_datetime_string_is_parsed(self):
d = self.parse_input(self.reference_str)
self.assertTrue(isinstance(d, datetime))
def test_datetime_string_with_timezone_is_parsed(self):
d = self.parse_input(self.reference_str + "+01:00")
self.assertTrue(isinstance(d, datetime))
def test_datetime_zulu(self):
d = self.parse_input(self.reference_str + "Z")
self.assertTrue(isinstance(d, datetime))
@unittest.skipUnless(django.VERSION < (5, 0), "pytz support removed in Django 5.0")
@override_settings(TIME_ZONE="UTC")
def test_datetime_timezone_awareness(self):
utc, tokyo = pytz.timezone("UTC"), pytz.timezone("Asia/Tokyo")
# by default, use the server timezone
reference = utc.localize(self.reference_dt)
parsed = self.parse_input(self.reference_str)
self.assertIsInstance(parsed.tzinfo, tzinfo)
self.assertEqual(parsed, reference)
# if set, use the active timezone
reference = tokyo.localize(self.reference_dt)
with timezone.override(tokyo):
parsed = self.parse_input(self.reference_str)
self.assertIsInstance(parsed.tzinfo, tzinfo)
self.assertEqual(parsed.tzinfo.zone, tokyo.zone)
self.assertEqual(parsed, reference)
# if provided, utc offset should have precedence
reference = utc.localize(self.reference_dt - timedelta(hours=1))
parsed = self.parse_input(self.reference_str + "+01:00")
self.assertIsInstance(parsed.tzinfo, tzinfo)
self.assertEqual(parsed, reference)
@override_settings(USE_TZ=False)
def test_datetime_timezone_naivety(self):
reference = self.reference_dt.replace()
parsed = self.parse_input(self.reference_str + "+01:00")
self.assertIsNone(parsed.tzinfo)
self.assertEqual(parsed, reference - timedelta(hours=1))
parsed = self.parse_input(self.reference_str)
self.assertIsNone(parsed.tzinfo)
self.assertEqual(parsed, reference)
def test_datetime_non_iso_format(self):
f = IsoDateTimeField()
parsed = f.strptime("19-07-2015T51:34:13.759", "%d-%m-%YT%S:%M:%H.%f")
self.assertTrue(isinstance(parsed, datetime))
self.assertEqual(parsed, self.reference_dt)
def test_datetime_wrong_format(self):
with self.assertRaises(ValueError):
self.parse_input("19-07-2015T51:34:13.759")
class BaseCSVFieldTests(TestCase):
class DecimalCSVField(BaseCSVField, forms.DecimalField):
pass
def test_clean(self):
# Filter class sets required=False by default
field = self.DecimalCSVField(required=False)
self.assertEqual(field.clean(None), None)
self.assertEqual(field.clean(""), [])
self.assertEqual(field.clean(["1"]), [1])
self.assertEqual(field.clean(["1", "2"]), [1, 2])
self.assertEqual(field.clean(["1", "2", "3"]), [1, 2, 3])
def test_validation_error(self):
field = self.DecimalCSVField()
msg = "Enter a number."
with self.assertRaisesMessage(forms.ValidationError, msg):
field.clean(["a", "b", "c"])
def test_required_error(self):
field = self.DecimalCSVField(required=True)
msg = "This field is required."
with self.assertRaisesMessage(forms.ValidationError, msg):
field.clean(None)
with self.assertRaisesMessage(forms.ValidationError, msg):
field.clean([""])
def test_derived_widget(self):
with self.assertRaises(AssertionError) as excinfo:
BaseCSVField(widget=RangeWidget())
msg = str(excinfo.exception)
self.assertIn("'BaseCSVField.widget' must be a widget class", msg)
self.assertIn("RangeWidget", msg)
widget = CSVWidget(attrs={"class": "class"})
field = BaseCSVField(widget=widget)
self.assertIsInstance(field.widget, CSVWidget)
self.assertEqual(field.widget.attrs, {"class": "class"})
field = BaseCSVField(widget=CSVWidget)
self.assertIsInstance(field.widget, CSVWidget)
field = BaseCSVField(widget=forms.Select)
self.assertIsInstance(field.widget, forms.Select)
self.assertIsInstance(field.widget, BaseCSVWidget)
class BaseRangeFieldTests(TestCase):
class DecimalRangeField(BaseRangeField, forms.DecimalField):
pass
def test_clean(self):
# Filter class sets required=False by default
field = self.DecimalRangeField(required=False)
self.assertEqual(field.clean(None), None)
self.assertEqual(field.clean(""), [])
self.assertEqual(field.clean([]), [])
self.assertEqual(field.clean(["1", "2"]), [1, 2])
def test_validation_error(self):
field = self.DecimalRangeField()
msg = "Range query expects two values."
with self.assertRaisesMessage(forms.ValidationError, msg):
field.clean(["1"])
with self.assertRaisesMessage(forms.ValidationError, msg):
field.clean(["1", "2", "3"])
def test_required_error(self):
field = self.DecimalRangeField(required=True)
msg = "This field is required."
with self.assertRaisesMessage(forms.ValidationError, msg):
field.clean(None)
with self.assertRaisesMessage(forms.ValidationError, msg):
field.clean([""])
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