[dts] [PATCH V1]framework/test_case: fix tear down fail will lost suite results

[Xiao Qimai <qimaix.xiao@intel.com>]

*. this patch fix if got exception in tear down method of testsuite will lost result
scilently

Signed-off-by: Xiao Qimai <qimaix.xiao@intel.com>
---
 framework/test_case.py | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/framework/test_case.py b/framework/test_case.py
index 110dafb..300b6ac 100644
--- a/framework/test_case.py
+++ b/framework/test_case.py
@@ -350,7 +350,7 @@ class TestCase(object):
                 'update_expected' in self.get_suite_cfg() and \
                 self.get_suite_cfg()['update_expected'] == True:
                 self._suite_conf.update_case_config(SUITE_SECTION_NAME)
-            self.tear_down()
+            self.execute_tear_down()
             return case_result
 
     def execute_test_cases(self):
@@ -440,6 +440,16 @@ class TestCase(object):
             # destroy all vfs
             dutobj.destroy_all_sriov_vfs()
 
+    def execute_tear_down(self):
+        """
+        execute suite tear_down function
+        """
+        try:
+            self.tear_down()
+        except Exception:
+            self.logger.error('tear_down failed:\n' + traceback.format_exc())
+            self.logger.warning("tear down %s failed, might iterfere next case's result!" % self.running_case)
+
     def enable_history(self, history):
         """
         Enable history for all CRB's default session
-- 
2.25.1