Replace test setuptools command by unittest discover

issue9215
review389851002

tests/test_module.py

@@ -0,0 +1,12 @@
+# 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 trytond.tests.test_tryton import ModuleTestCase
+
+
+class SaleHistoryTestCase(ModuleTestCase):
+    'Test Sale History module'
+    module = 'sale_history'
+
+
+del ModuleTestCase