oeqa/runtime/ptest: Make returning no test results a failure

Ensure that even if a ptests results section is empty, the log parser adds that
empty section. Then ensure that empty sections trigger warnings.

This means if a ptest suddently stops returning any results, we notice and see
warnings about it. This has gone unnoticed on the autobuilder far too many times
so is very much worth highlighting as a regression. We shouldn't have empty ptests.

(From OE-Core rev: 5ad0cf57b41ec7f44647a03bc568d0b24906cc8d)

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

meta/lib/oeqa/runtime/cases/ptest.py

@@ -83,12 +83,15 @@ class PtestRunnerTest(OERuntimeTestCase):
 
         extras['ptestresult.sections'] = sections
 
+        zerolength = []
         trans = str.maketrans("()", "__")
         for section in results:
             for test in results[section]:
                 result = results[section][test]
                 testname = "ptestresult." + (section or "No-section") + "." + "_".join(test.translate(trans).split())
                 extras[testname] = {'status': result}
+            if not results[section]:
+                zerolength.append(section)
 
         failed_tests = {}
 
@@ -107,7 +110,10 @@ class PtestRunnerTest(OERuntimeTestCase):
             failmsg = "ERROR: Processes were killed by the OOM Killer:\n%s\n" % output
 
         if failed_tests:
-            failmsg = failmsg + "Failed ptests:\n%s" % pprint.pformat(failed_tests)
+            failmsg = failmsg + "\nFailed ptests:\n%s\n" % pprint.pformat(failed_tests)
+
+        if zerolength:
+            failmsg = failmsg + "\nptests which had no test results:\n%s" % pprint.pformat(zerolength)
 
         if failmsg:
             self.logger.warning("There were failing ptests.")

meta/lib/oeqa/utils/logparser.py

@@ -44,6 +44,8 @@ class PtestParser(object):
                 result = section_regex['begin'].search(line)
                 if result:
                     current_section['name'] = result.group(1)
+                    if current_section['name'] not in self.results:
+                        self.results[current_section['name']] = {}
                     continue
 
                 result = section_regex['end'].search(line)
@@ -75,8 +77,6 @@ class PtestParser(object):
                 for t in test_regex:
                     result = test_regex[t].search(line)
                     if result:
-                        if current_section['name'] not in self.results:
-                            self.results[current_section['name']] = {}
                         self.results[current_section['name']][result.group(1).strip()] = t
 
         # Python performance for repeatedly joining long strings is poor, do it all at once at the end.