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Location: rattail-project/rattail/tests/db/test_changes.py
9343ba3fb2c8
8.6 KiB
text/x-python
Tweak `locking_copy_test()` to assume destination is always a folder.
Also add constant for "file exists" error.
Also add constant for "file exists" error.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 | # -*- coding: utf-8 -*-
from __future__ import unicode_literals
from unittest import TestCase
from mock import patch, DEFAULT, Mock, MagicMock, call
from . import DataTestCase
from rattail.db import changes
from rattail.db import model
from sqlalchemy.orm import RelationshipProperty
class TestChangeRecorder(TestCase):
def test_init(self):
recorder = changes.ChangeRecorder()
self.assertTrue(recorder.ignore_role_changes)
recorder = changes.ChangeRecorder(False)
self.assertFalse(recorder.ignore_role_changes)
def test_record_change(self):
session = Mock()
recorder = changes.ChangeRecorder()
recorder.ensure_uuid = Mock()
# don't record changes for changes
self.assertFalse(recorder.record_change(session, model.Change()))
# don't record changes for batch data
self.assertFalse(recorder.record_change(session, model.Batch()))
self.assertFalse(recorder.record_change(session, model.BatchColumn()))
self.assertFalse(recorder.record_change(session, model.BatchRow()))
# don't record changes for objects with no uuid attribute
self.assertFalse(recorder.record_change(session, object()))
# don't record changes for role data if so configured
recorder.ignore_role_changes = True
self.assertFalse(recorder.record_change(session, model.Role()))
self.assertFalse(recorder.record_change(session, model.UserRole()))
# none of the above should have involved a call to `ensure_uuid()`
self.assertFalse(recorder.ensure_uuid.called)
# make sure role data is *not* ignored if so configured
recorder.ignore_role_changes = False
self.assertTrue(recorder.record_change(session, model.Role()))
self.assertTrue(recorder.record_change(session, model.UserRole()))
# so far no *new* changes have been created
self.assertFalse(session.add.called)
# mock up session to force new change creation
session.query.return_value = session
session.get.return_value = None
self.assertTrue(recorder.record_change(session, model.Product()))
@patch.multiple('rattail.db.changes', get_uuid=DEFAULT, object_mapper=DEFAULT)
def test_ensure_uuid(self, get_uuid, object_mapper):
recorder = changes.ChangeRecorder()
uuid_column = Mock()
object_mapper.return_value.columns.__getitem__.return_value = uuid_column
# uuid already present
product = model.Product(uuid='some_uuid')
recorder.ensure_uuid(product)
self.assertEqual(product.uuid, 'some_uuid')
self.assertFalse(get_uuid.called)
# no uuid yet, auto-generate
uuid_column.foreign_keys = False
get_uuid.return_value = 'another_uuid'
product = model.Product()
self.assertTrue(product.uuid is None)
recorder.ensure_uuid(product)
get_uuid.assert_called_once_with()
self.assertEqual(product.uuid, 'another_uuid')
# some heavy mocking for following tests
uuid_column.foreign_keys = True
remote_side = MagicMock(key='uuid')
prop = MagicMock(__class__=RelationshipProperty, key='foreign_thing')
prop.remote_side.__len__.return_value = 1
prop.remote_side.__iter__.return_value = [remote_side]
object_mapper.return_value.iterate_properties.__iter__.return_value = [prop]
# uuid fetched from existing foreign key object
get_uuid.reset_mock()
instance = Mock(uuid=None, foreign_thing=Mock(uuid='secondary_uuid'))
recorder.ensure_uuid(instance)
self.assertFalse(get_uuid.called)
self.assertEqual(instance.uuid, 'secondary_uuid')
# foreign key object doesn't exist; uuid generated as fallback
get_uuid.return_value = 'fallback_uuid'
instance = Mock(uuid=None, foreign_thing=None)
recorder.ensure_uuid(instance)
get_uuid.assert_called_once_with()
self.assertEqual(instance.uuid, 'fallback_uuid')
class TestFunctionalChanges(DataTestCase):
def setUp(self):
super(TestFunctionalChanges, self).setUp()
changes.record_changes(self.session)
def test_add(self):
product = model.Product()
self.session.add(product)
self.session.commit()
self.assertEqual(self.session.query(model.Change).count(), 1)
change = self.session.query(model.Change).one()
self.assertEqual(change.class_name, 'Product')
self.assertEqual(change.uuid, product.uuid)
self.assertFalse(change.deleted)
def test_change(self):
product = model.Product()
self.session.add(product)
self.session.commit()
self.assertEqual(self.session.query(model.Change).count(), 1)
self.session.query(model.Change).delete()
self.assertEqual(self.session.query(model.Change).count(), 0)
product.description = 'Acme Bricks'
self.session.commit()
self.assertEqual(self.session.query(model.Change).count(), 1)
change = self.session.query(model.Change).one()
self.assertEqual(change.class_name, 'Product')
self.assertEqual(change.uuid, product.uuid)
self.assertFalse(change.deleted)
def test_delete(self):
product = model.Product()
self.session.add(product)
self.session.commit()
self.assertEqual(self.session.query(model.Change).count(), 1)
self.session.query(model.Change).delete()
self.assertEqual(self.session.query(model.Change).count(), 0)
self.session.delete(product)
self.assertEqual(self.session.query(model.Change).count(), 1)
change = self.session.query(model.Change).one()
self.assertEqual(change.class_name, 'Product')
self.assertEqual(change.uuid, product.uuid)
self.assertTrue(change.deleted)
def test_orphan_change(self):
department = model.Department()
subdepartment = model.Subdepartment()
department.subdepartments.append(subdepartment)
self.session.add(department)
self.session.commit()
self.assertEqual(self.session.query(model.Change).count(), 2)
change = self.session.query(model.Change).filter_by(class_name='Department').one()
self.assertFalse(change.deleted)
change = self.session.query(model.Change).filter_by(class_name='Subdepartment').one()
self.assertFalse(change.deleted)
self.session.query(model.Change).delete()
self.assertEqual(self.session.query(model.Change).count(), 0)
# Creating an orphaned Subdepartment, which should be recorded as a
# *change* due to the cascade rules in effect.
department.subdepartments.remove(subdepartment)
self.session.commit()
self.assertEqual(self.session.query(model.Change).count(), 2)
change = self.session.query(model.Change).filter_by(class_name='Department').one()
self.assertFalse(change.deleted)
change = self.session.query(model.Change).filter_by(class_name='Subdepartment').one()
self.assertFalse(change.deleted)
self.assertEqual(self.session.query(model.Subdepartment).count(), 1)
def test_orphan_delete(self):
customer = model.Customer()
group = model.CustomerGroup()
customer.groups.append(group)
self.session.add(customer)
self.session.commit()
self.assertEqual(self.session.query(model.Change).count(), 3)
change = self.session.query(model.Change).filter_by(class_name='Customer').one()
self.assertFalse(change.deleted)
change = self.session.query(model.Change).filter_by(class_name='CustomerGroup').one()
self.assertFalse(change.deleted)
change = self.session.query(model.Change).filter_by(class_name='CustomerGroupAssignment').one()
self.assertFalse(change.deleted)
self.session.query(model.Change).delete()
self.assertEqual(self.session.query(model.Change).count(), 0)
# Creating an orphaned CustomerGroupAssociation, which should be
# recorded as a *deletion* due to the cascade rules in effect. Note
# that the CustomerGroup is not technically an orphan and in fact is
# not even changed.
customer.groups.remove(group)
self.session.commit()
self.assertEqual(self.session.query(model.Change).count(), 2)
change = self.session.query(model.Change).filter_by(class_name='Customer').one()
self.assertFalse(change.deleted)
change = self.session.query(model.Change).filter_by(class_name='CustomerGroupAssignment').one()
self.assertTrue(change.deleted)
self.assertEqual(self.session.query(model.CustomerGroupAssignment).count(), 0)
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