tests: ensure the use of exceptions is well defined

Some tests expect that exceptions won't be thrown out of LMIShell's
functions. Others prefers them and enable them globally. This causes
problems when running under nosetests all provider tests at once.
Tests that modified enablement of exception throws globally caused
others to fail.

This patch makes sure that each TestCase has defined use of exceptions.
Default state is to have them disabled. If a TestCase prefers having
them enabled, just one variable needs to be overriden in its body:

    class AccountBase(lmibase.LmiTestCase):
        USE_EXCEPTIONS = True

1 files changed, 2 insertions, 2 deletions

diff --git a/src/account/test/common.py b/src/account/test/common.py
index 8bb18e2..1476d10 100644
--- a/src/account/test/common.py
+++ b/src/account/test/common.py
@@ -24,17 +24,17 @@ Base class and utilities for all OpenLMI Account tests.
 import os
 
 from lmi.test import lmibase
-import lmi.shell
 
 class AccountBase(lmibase.LmiTestCase):
     """
     Base class for all LMI Account tests.
     """
 
+    USE_EXCEPTIONS = True
+
     @classmethod
     def setUpClass(cls):
         lmibase.LmiTestCase.setUpClass.im_func(cls)
-        lmi.shell.LMIUtil.lmi_set_use_exceptions(True)
         cls.user_name = os.environ.get("LMI_ACCOUNT_USER")
         cls.group_name = os.environ.get("LMI_ACCOUNT_GROUP")