ComponentTestBase: fix env restore in teardown

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/tests/component/__init__.py b/tests/component/__init__.py
index 9bc126dc..a6334cba 100644
--- a/tests/component/__init__.py
+++ b/tests/component/__init__.py
@@ -89,7 +89,8 @@ class ComponentTestBase(object):
     def teardown_class(cls):
         """Test class case teardown"""
         # Return original environment
-        os.environ = cls.orig_env
+        os.environ.clear()
+        os.environ.update(cls.orig_env)
 
     def __init__(self):
         """Object initialization"""