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Migrated the force_insert_update tests. Thanks to Alex Gaynor.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@13782 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Russell Keith-Magee 2010-09-12 20:04:04 +00:00
parent a45c687ecf
commit f1f86e0173
2 changed files with 38 additions and 51 deletions

View File

@ -11,54 +11,3 @@ class Counter(models.Model):
class WithCustomPK(models.Model):
name = models.IntegerField(primary_key=True)
value = models.IntegerField()
__test__ = {"API_TESTS": """
>>> c = Counter.objects.create(name="one", value=1)
# The normal case
>>> c.value = 2
>>> c.save()
# Same thing, via an update
>>> c.value = 3
>>> c.save(force_update=True)
# Won't work because force_update and force_insert are mutually exclusive
>>> c.value = 4
>>> c.save(force_insert=True, force_update=True)
Traceback (most recent call last):
...
ValueError: Cannot force both insert and updating in model saving.
# Try to update something that doesn't have a primary key in the first place.
>>> c1 = Counter(name="two", value=2)
>>> c1.save(force_update=True)
Traceback (most recent call last):
...
ValueError: Cannot force an update in save() with no primary key.
>>> c1.save(force_insert=True)
# Won't work because we can't insert a pk of the same value.
>>> sid = transaction.savepoint()
>>> c.value = 5
>>> try:
... c.save(force_insert=True)
... except Exception, e:
... if isinstance(e, IntegrityError):
... print "Pass"
... else:
... print "Fail with %s" % type(e)
Pass
>>> transaction.savepoint_rollback(sid)
# Trying to update should still fail, even with manual primary keys, if the
# data isn't in the database already.
>>> obj = WithCustomPK(name=1, value=1)
>>> obj.save(force_update=True)
Traceback (most recent call last):
...
DatabaseError: ...
"""
}

View File

@ -0,0 +1,38 @@
from django.db import transaction, IntegrityError, DatabaseError
from django.test import TestCase
from models import Counter, WithCustomPK
class ForceTests(TestCase):
def test_force_update(self):
c = Counter.objects.create(name="one", value=1)
# The normal case
c.value = 2
c.save()
# Same thing, via an update
c.value = 3
c.save(force_update=True)
# Won't work because force_update and force_insert are mutually
# exclusive
c.value = 4
self.assertRaises(ValueError, c.save, force_insert=True, force_update=True)
# Try to update something that doesn't have a primary key in the first
# place.
c1 = Counter(name="two", value=2)
self.assertRaises(ValueError, c1.save, force_update=True)
c1.save(force_insert=True)
# Won't work because we can't insert a pk of the same value.
sid = transaction.savepoint()
c.value = 5
self.assertRaises(IntegrityError, c.save, force_insert=True)
transaction.savepoint_rollback(sid)
# Trying to update should still fail, even with manual primary keys, if
# the data isn't in the database already.
obj = WithCustomPK(name=1, value=1)
self.assertRaises(DatabaseError, obj.save, force_update=True)