fix: allow config injection for sake of tests

per changes in wuttaweb, sideshow

tests/test_config.py

@@ -0,0 +1,18 @@
+# -*- coding: utf-8; -*-
+
+from wuttjamaican.testing import ConfigTestCase
+
+from sideshow_corepos import config as mod
+
+
+class TestSideshowCoreposConfig(ConfigTestCase):
+
+    def test_basic(self):
+
+        self.assertIsNone(self.config.get('wutta.batch.neworder.handler.spec'))
+
+        ext = mod.SideshowCoreposConfig()
+        ext.configure(self.config)
+
+        self.assertEqual(self.config.get('wutta.batch.neworder.handler.spec'),
+                         'sideshow_corepos.batch.neworder:NewOrderBatchHandler')