oeqa: Add selftest parallelisation support

This allows oe-selftest to take a -j option which specifies how much test
parallelisation to use. Currently this is "module" based with each module
being split and run in a separate build directory. Further splitting could
be done but this seems a good compromise between test setup and parallelism.

You need python-testtools and python-subunit installed to use this but only
when the -j option is specified.

See notes posted to the openedmbedded-architecture list for more details
about the design choices here.

Some of this functionality may make more sense in the oeqa core ultimately.

(From OE-Core rev: 326ababfd620ae5ea29bf486b9d68ba3d60cad30)

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

meta/lib/oeqa/core/runner.py

@@ -43,11 +43,17 @@ class OETestResult(_TestResult):
         super(OETestResult, self).__init__(*args, **kwargs)
 
         self.successes = []
+        self.starttime = {}
+        self.endtime = {}
+        self.progressinfo = {}
 
         self.tc = tc
         self._tc_map_results()
 
     def startTest(self, test):
+        # May have been set by concurrencytest
+        if test.id() not in self.starttime:
+            self.starttime[test.id()] = time.time()
         super(OETestResult, self).startTest(test)
 
     def _tc_map_results(self):
@@ -57,6 +63,12 @@ class OETestResult(_TestResult):
         self.tc._results['expectedFailures'] = self.expectedFailures
         self.tc._results['successes'] = self.successes
 
+    def stopTest(self, test):
+        self.endtime[test.id()] = time.time()
+        super(OETestResult, self).stopTest(test)
+        if test.id() in self.progressinfo:
+            print(self.progressinfo[test.id()])
+
     def logSummary(self, component, context_msg=''):
         elapsed_time = self.tc._run_end_time - self.tc._run_start_time
         self.tc.logger.info("SUMMARY:")
@@ -141,12 +153,16 @@ class OETestResult(_TestResult):
                     if hasattr(d, 'oeid'):
                         oeid = d.oeid
 
+            t = ""
+            if case.id() in self.starttime and case.id() in self.endtime:
+                t = " (" + "{0:.2f}".format(self.endtime[case.id()] - self.starttime[case.id()]) + "s)"
+
             if fail:
-                self.tc.logger.info("RESULTS - %s - Testcase %s: %s" % (case.id(),
-                    oeid, desc))
+                self.tc.logger.info("RESULTS - %s - Testcase %s: %s%s" % (case.id(),
+                    oeid, desc, t))
             else:
-                self.tc.logger.info("RESULTS - %s - Testcase %s: %s" % (case.id(),
-                    oeid, 'UNKNOWN'))
+                self.tc.logger.info("RESULTS - %s - Testcase %s: %s%s" % (case.id(),
+                    oeid, 'UNKNOWN', t))
 
 class OEListTestsResult(object):
     def wasSuccessful(self):