Update to 4.8 [CI SKIP]

.drone.yml

@@ -7,7 +7,8 @@ pipeline:
         image: ${IMAGE}
         environment:
             - CFLAGS=-O0
-            - TOX_TESTENV_PASSENV=CFLAGS
+            - DB_CACHE=/cache
+            - TOX_TESTENV_PASSENV=CFLAGS DB_CACHE
             - POSTGRESQL_URI=postgresql://postgres@postgresql:5432/
         commands:
             - pip install tox

tests/test_party_cross_reference.py

@@ -1,33 +1,29 @@
 # The COPYRIGHT file at the top level of this repository contains
 # the full copyright notices and license terms.
 import unittest
-from trytond.tests.test_tryton import ModuleTestCase
+from trytond.tests.test_tryton import ModuleTestCase, with_transaction
 from trytond.tests.test_tryton import suite as test_suite
-from trytond.tests.test_tryton import POOL, DB_NAME, USER, CONTEXT
-from trytond.transaction import Transaction
+from trytond.pool import Pool
 
 
 class PartyCrossReferenceTestCase(ModuleTestCase):
     """Test Party Cross Reference module"""
     module = 'party_cross_reference'
 
-    def setUp(self):
-        super(PartyCrossReferenceTestCase, self).setUp()
-        self.party = POOL.get('party.party')
-        self.cross_reference = POOL.get('party.cross_reference')
-
+    @with_transaction()
     def test0010create_cross_reference(self):
-        with Transaction().start(DB_NAME, USER,
-                context=CONTEXT) as transaction:
-            pty1, pty2 = self.party.create([{
-                'name': 'Customer 1'}, {
-                'name': 'Customer 2'}])
-            cr1, = self.cross_reference.create([{
-                'party': pty1.id,
-                'dest_party': pty2.id,
-                'code': '001',
-                'name': 'P001'}])
-            transaction.commit()
+        pool = Pool()
+        Party = pool.get('party.party')
+        Reference = pool.get('party.cross_reference')
+
+        pty1, pty2 = Party.create([{
+            'name': 'Customer 1'}, {
+            'name': 'Customer 2'}])
+        cr1, = Reference.create([{
+            'party': pty1.id,
+            'dest_party': pty2.id,
+            'code': '001',
+            'name': 'P001'}])
 
 
 def suite():

tox.ini

@@ -7,6 +7,7 @@ deps =
     {py27,py34,py35,py36}-postgresql: psycopg2 >= 2.5
     pypy-postgresql: psycopg2cffi >= 2.5
     mysql: MySQL-python
+    sqlite: sqlitebck
 setenv =
     sqlite: TRYTOND_DATABASE_URI={env:SQLITE_URI:sqlite://}
     postgresql: TRYTOND_DATABASE_URI={env:POSTGRESQL_URI:postgresql://}

tryton.cfg

@@ -1,5 +1,5 @@
 [tryton]
-version=4.2.0
+version=4.8.0
 depends:
     ir
     res