tests: specify svn.erp5.org certificate file.

python 2.7.9 validates certificates by default.

product/ERP5/tests/svn.erp5.org.cert

+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----

product/ERP5/tests/testTemplateTool.py

@@ -42,6 +42,19 @@ from Products.ERP5.Tool.TemplateTool import BusinessTemplateUnknownError
 
 from Products.ERP5Type.tests.ERP5TypeTestCase import ERP5TypeTestCase
 
+# Specify svn.erp5.org certificate file.
+import ssl
+_create_default_https_context_orig = ssl._create_default_https_context
+def _create_default_https_context(purpose=ssl.Purpose.SERVER_AUTH, cafile=None,
+                           capath=None, cadata=None):
+  return _create_default_https_context_orig(
+    purpose,
+    cafile=os.path.join(os.path.dirname(__file__), 'svn.erp5.org.cert'),
+    capath=capath,
+    cadata=cadata,
+  )
+ssl._create_default_https_context = _create_default_https_context
+
 class TestTemplateTool(ERP5TypeTestCase):
   """
   Test the template tool