oeqa/runner: Ensure class setup errors are shown to bitbake logging

This took a bit of digging but failure messages from testimage are shown to bitbake's
logging through stopTest. In the case of a setUpClass failure stopTest is never
called and the bitbake logging never sees the error. It would still be in the task
logfile. Add some code+comment to ensure logs not shown to the user mid stream are shown
at the end.

(From OE-Core rev: 7342c418bda2cc3c337a190089864ea731ff62e4)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/core/runner.py

@@ -44,6 +44,7 @@ class OETestResult(_TestResult):
         self.endtime = {}
         self.progressinfo = {}
         self.extraresults = {}
+        self.shownmsg = []
 
         # Inject into tc so that TestDepends decorator can see results
         tc.results = self
@@ -74,6 +75,7 @@ class OETestResult(_TestResult):
             for (scase, msg) in getattr(self, t):
                 if test.id() == scase.id():
                     self.tc.logger.info(str(msg))
+                    self.shownmsg.append(test.id())
                     break
 
     def logSummary(self, component, context_msg=''):
@@ -169,7 +171,6 @@ class OETestResult(_TestResult):
 
     def logDetails(self, json_file_dir=None, configuration=None, result_id=None,
             dump_streams=False):
-        self.tc.logger.info("RESULTS:")
 
         result = self.extraresults
         logs = {}
@@ -193,6 +194,10 @@ class OETestResult(_TestResult):
             report = {'status': status}
             if log:
                 report['log'] = log
+                # Class setup failures wouldn't enter stopTest so would never display
+                if case.id() not in self.shownmsg:
+                    self.tc.logger.info("Failure (%s) for %s:\n" % (status, case.id()) + log)
+
             if duration:
                 report['duration'] = duration
 
@@ -215,6 +220,7 @@ class OETestResult(_TestResult):
                 report['stderr'] = stderr
             result[case.id()] = report
 
+        self.tc.logger.info("RESULTS:")
         for i in ['PASSED', 'SKIPPED', 'EXPECTEDFAIL', 'ERROR', 'FAILED', 'UNKNOWN']:
             if i not in logs:
                 continue