diff --git a/tests/scenario_purchase_request.rst b/tests/scenario_purchase_request.rst
index fac359f899..f2b570f728 100644
--- a/tests/scenario_purchase_request.rst
+++ b/tests/scenario_purchase_request.rst
@@ -7,36 +7,23 @@ Imports::
     >>> import datetime
     >>> from dateutil.relativedelta import relativedelta
     >>> from decimal import Decimal
-    >>> from proteus import config, Model, Wizard
+    >>> from proteus import Model, Wizard
+    >>> from trytond.tests.tools import install_modules
     >>> from trytond.modules.company.tests.tools import create_company, \
     ...     get_company
     >>> from trytond.modules.account.tests.tools import (create_chart,
     ...     get_accounts)
     >>> today = datetime.date.today()
 
-Create database::
-
-    >>> config = config.set_trytond()
-    >>> config.pool.test = True
-
 Install stock_supply Module::
 
-    >>> Module = Model.get('ir.module')
-    >>> module, = Module.find([('name', '=', 'stock_supply')])
-    >>> module.click('install')
-    >>> Wizard('ir.module.install_upgrade').execute('upgrade')
+    >>> config = install_modules('stock_supply')
 
 Create company::
 
     >>> _ = create_company()
     >>> company = get_company()
 
-Reload the context::
-
-    >>> User = Model.get('res.user')
-    >>> Group = Model.get('res.group')
-    >>> config._context = User.get_preferences(True, config.context)
-
 Create chart of accounts::
 
     >>> _ = create_chart(company)
@@ -53,6 +40,8 @@ Create parties::
 
 Create stock admin user::
 
+    >>> User = Model.get('res.user')
+    >>> Group = Model.get('res.group')
     >>> stock_admin_user = User()
     >>> stock_admin_user.name = 'Stock Admin'
     >>> stock_admin_user.login = 'stock_admin'
diff --git a/tests/test_purchase_request.py b/tests/test_purchase_request.py
index f3138a06e3..320b460dfd 100644
--- a/tests/test_purchase_request.py
+++ b/tests/test_purchase_request.py
@@ -7,7 +7,7 @@ import doctest
 
 from trytond.tests.test_tryton import ModuleTestCase
 from trytond.tests.test_tryton import suite as test_suite
-from trytond.tests.test_tryton import doctest_setup, doctest_teardown
+from trytond.tests.test_tryton import doctest_teardown
 from trytond.tests.test_tryton import doctest_checker
 
 
@@ -22,7 +22,7 @@ def suite():
             PurchaseRequestTestCase))
     suite.addTests(doctest.DocFileSuite(
             'scenario_purchase_request.rst',
-            setUp=doctest_setup, tearDown=doctest_teardown, encoding='utf-8',
+            tearDown=doctest_teardown, encoding='utf-8',
             checker=doctest_checker,
             optionflags=doctest.REPORT_ONLY_FIRST_FAILURE))
     return suite