[OE-core] [PATCH 1/1] selftest/eSDK.py: fix sstate dir not found error

[Chen Qi]

Fix the error below when SSTATE_DIR is not "${BUILDDIR}/sstate-cache".

  FileNotFoundError: [Errno 2] No such file or directory: '/xxx/../sstate-cache'

Signed-off-by: Chen Qi <Qi.Chen at windriver.com>
---
 meta/lib/oeqa/selftest/eSDK.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/lib/oeqa/selftest/eSDK.py b/meta/lib/oeqa/selftest/eSDK.py
index 9d5c680..b43a452 100644
--- a/meta/lib/oeqa/selftest/eSDK.py
+++ b/meta/lib/oeqa/selftest/eSDK.py
@@ -55,7 +55,7 @@ class oeSDKExtSelfTest(oeSelfTest):
     @classmethod
     def setUpClass(cls):
         # Start to serve sstate dir
-        sstate_dir = os.path.join(os.environ['BUILDDIR'], 'sstate-cache')
+        sstate_dir = get_bb_var('SSTATE_DIR')
         cls.http_service = HTTPService(sstate_dir)
         cls.http_service.start()
 
-- 
1.9.1