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import datetime
import unittest
import django.test
from django import forms
from django.db import models
from django.core.exceptions import ValidationError
from models import Foo, Bar, Whiz, BigD, BigS
try:
from decimal import Decimal
except ImportError:
from django.utils._decimal import Decimal
class DecimalFieldTests(django.test.TestCase):
def test_to_python(self):
f = models.DecimalField(max_digits=4, decimal_places=2)
self.assertEqual(f.to_python(3), Decimal("3"))
self.assertEqual(f.to_python("3.14"), Decimal("3.14"))
self.assertRaises(ValidationError, f.to_python, "abc")
def test_default(self):
f = models.DecimalField(default=Decimal("0.00"))
self.assertEqual(f.get_default(), Decimal("0.00"))
def test_format(self):
f = models.DecimalField(max_digits=5, decimal_places=1)
self.assertEqual(f._format(f.to_python(2)), u'2.0')
self.assertEqual(f._format(f.to_python('2.6')), u'2.6')
self.assertEqual(f._format(None), None)
def test_get_db_prep_lookup(self):
f = models.DecimalField(max_digits=5, decimal_places=1)
self.assertEqual(f.get_db_prep_lookup('exact', None), [None])
def test_filter_with_strings(self):
"""
We should be able to filter decimal fields using strings (#8023)
"""
Foo.objects.create(id=1, a='abc', d=Decimal("12.34"))
self.assertEqual(list(Foo.objects.filter(d=u'1.23')), [])
def test_save_wihout_float_conversion(self):
"""
Ensure decimals don't go through a corrupting float conversion during
save (#5079).
"""
bd = BigD(d="12.9")
bd.save()
bd = BigD.objects.get(pk=bd.pk)
self.assertEqual(bd.d, Decimal("12.9"))
class ForeignKeyTests(django.test.TestCase):
def test_callable_default(self):
"""Test the use of a lazy callable for ForeignKey.default"""
a = Foo.objects.create(id=1, a='abc', d=Decimal("12.34"))
b = Bar.objects.create(b="bcd")
self.assertEqual(b.a, a)
class DateTimeFieldTests(unittest.TestCase):
def test_datetimefield_to_python_usecs(self):
"""DateTimeField.to_python should support usecs"""
f = models.DateTimeField()
self.assertEqual(f.to_python('2001-01-02 03:04:05.000006'),
datetime.datetime(2001, 1, 2, 3, 4, 5, 6))
self.assertEqual(f.to_python('2001-01-02 03:04:05.999999'),
datetime.datetime(2001, 1, 2, 3, 4, 5, 999999))
def test_timefield_to_python_usecs(self):
"""TimeField.to_python should support usecs"""
f = models.TimeField()
self.assertEqual(f.to_python('01:02:03.000004'),
datetime.time(1, 2, 3, 4))
self.assertEqual(f.to_python('01:02:03.999999'),
datetime.time(1, 2, 3, 999999))
class BooleanFieldTests(unittest.TestCase):
def _test_get_db_prep_lookup(self, f):
self.assertEqual(f.get_db_prep_lookup('exact', True), [True])
self.assertEqual(f.get_db_prep_lookup('exact', '1'), [True])
self.assertEqual(f.get_db_prep_lookup('exact', 1), [True])
self.assertEqual(f.get_db_prep_lookup('exact', False), [False])
self.assertEqual(f.get_db_prep_lookup('exact', '0'), [False])
self.assertEqual(f.get_db_prep_lookup('exact', 0), [False])
self.assertEqual(f.get_db_prep_lookup('exact', None), [None])
def test_booleanfield_get_db_prep_lookup(self):
self._test_get_db_prep_lookup(models.BooleanField())
def test_nullbooleanfield_get_db_prep_lookup(self):
self._test_get_db_prep_lookup(models.NullBooleanField())
def test_booleanfield_choices_blank(self):
"""
Test that BooleanField with choices and defaults doesn't generate a
formfield with the blank option (#9640, #10549).
"""
choices = [(1, u'Si'), (2, 'No')]
f = models.BooleanField(choices=choices, default=1, null=True)
self.assertEqual(f.formfield().choices, [('', '---------')] + choices)
f = models.BooleanField(choices=choices, default=1, null=False)
self.assertEqual(f.formfield().choices, choices)
class ChoicesTests(django.test.TestCase):
def test_choices_and_field_display(self):
"""
Check that get_choices and get_flatchoices interact with
get_FIELD_display to return the expected values (#7913).
"""
self.assertEqual(Whiz(c=1).get_c_display(), 'First') # A nested value
self.assertEqual(Whiz(c=0).get_c_display(), 'Other') # A top level value
self.assertEqual(Whiz(c=9).get_c_display(), 9) # Invalid value
self.assertEqual(Whiz(c=None).get_c_display(), None) # Blank value
self.assertEqual(Whiz(c='').get_c_display(), '') # Empty value
class SlugFieldTests(django.test.TestCase):
def test_slugfield_max_length(self):
"""
Make sure SlugField honors max_length (#9706)
"""
bs = BigS.objects.create(s = 'slug'*50)
bs = BigS.objects.get(pk=bs.pk)
self.assertEqual(bs.s, 'slug'*50)
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