diff --git a/tests/__init__.py b/tests/__init__.py
index 7c00f68..e69de29 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -1,5 +0,0 @@
-# The COPYRIGHT file at the top level of this repository contains the full
-# copyright notices and license terms.
-from .test_quality_control_stress_test import suite
-
-__all__ = ['suite']
diff --git a/tests/test_quality_control_stress_test.py b/tests/test_module.py
similarity index 93%
rename from tests/test_quality_control_stress_test.py
rename to tests/test_module.py
index a311e63..e677bc4 100644
--- a/tests/test_quality_control_stress_test.py
+++ b/tests/test_module.py
@@ -1,17 +1,18 @@
-# The COPYRIGHT file at the top level of this repository contains the full
-# copyright notices and license terms.
-import unittest
+
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
 from decimal import Decimal
 
-import trytond.tests.test_tryton
 from trytond.pool import Pool
 from trytond.tests.test_tryton import ModuleTestCase, with_transaction
 
-from trytond.modules.company.tests import create_company, set_company
+from trytond.modules.company.tests import (CompanyTestMixin, create_company,
+    set_company)
 
 
-class TestCase(ModuleTestCase):
-    'Test module'
+class QualityControlStressTestTestCase(CompanyTestMixin, ModuleTestCase):
+    'Test QualityControlStressTest module'
     module = 'quality_control_stress_test'
 
     @with_transaction()
@@ -151,7 +152,4 @@ class TestCase(ModuleTestCase):
             self.assertEqual(qt_line.stress_test, low_stress_test)
 
 
-def suite():
-    suite = trytond.tests.test_tryton.suite()
-    suite.addTests(unittest.TestLoader().loadTestsFromTestCase(TestCase))
-    return suite
+del ModuleTestCase
diff --git a/tests/test_scenario.py b/tests/test_scenario.py
new file mode 100644
index 0000000..b5e24ad
--- /dev/null
+++ b/tests/test_scenario.py
@@ -0,0 +1,23 @@
+
+# This file is part of Tryton.  The COPYRIGHT file at the top level of
+# this repository contains the full copyright notices and license terms.
+
+import doctest
+import glob
+import os
+
+from trytond.tests.test_tryton import doctest_checker, doctest_teardown
+
+
+def load_tests(loader, tests, pattern):
+    cwd = os.getcwd()
+    try:
+        os.chdir(os.path.dirname(__file__))
+        for scenario in glob.glob('*.rst'):
+            tests.addTests(doctest.DocFileSuite(
+                    scenario, tearDown=doctest_teardown, encoding='utf-8',
+                    checker=doctest_checker,
+                    optionflags=doctest.REPORT_ONLY_FIRST_FAILURE))
+    finally:
+        os.chdir(cwd)
+    return tests
\ No newline at end of file