[dts] [PATCH] Clear all buffers before every test suite

[Yong Liu]

From: Marvin Liu <yong.liu at intel.com>

Signed-off-by: Marvin Liu <yong.liu at intel.com>

diff --git a/framework/dts.py b/framework/dts.py
index b9cd370..6e38cac 100644
--- a/framework/dts.py
+++ b/framework/dts.py
@@ -552,6 +552,9 @@ def execute_test_setup_all(test_case):
     Execute suite setup_all function before cases.
     """
     try:
+        # clear all previous output
+        test_case.dut.get_session_output(timeout=0.1)
+        test_case.tester.get_session_output(timeout=0.1)
         test_case.set_up_all()
         return True
     except Exception:
-- 
1.9.3