[test] Fix merging of test outcomes

tools/testrunner/local/testsuite_unittest.py

Index: tools/testrunner/local/testsuite_unittest.py
diff --git a/tools/testrunner/local/testsuite_unittest.py b/tools/testrunner/local/testsuite_unittest.py
index 003822afdf36a50ee984d2ff830c93d3db468566..1e10ef5564e375560e4f3496c564b9e4a2e78902 100755
--- a/tools/testrunner/local/testsuite_unittest.py
+++ b/tools/testrunner/local/testsuite_unittest.py
@@ -43,18 +43,20 @@ class TestSuiteTest(unittest.TestCase):
 
   def test_filter_testcases_by_status_second_pass(self):
     suite = TestSuite('foo', 'bar')
-    suite.tests = [
-      TestCase(suite, 'foo/bar', variant='default'),
-      TestCase(suite, 'foo/bar', variant='stress', flags=['-v']),
-      TestCase(suite, 'baz/bar', variant='default'),
-      TestCase(suite, 'baz/bar', variant='stress', flags=['-v']),
-    ]
+
+    test1 = TestCase(suite, 'foo/bar')
+    test2 = TestCase(suite, 'baz/bar')
 
     # Contrived outcomes from filtering by variant-independent rules.
-    suite.tests[0].outcomes = set(['PREV'])
-    suite.tests[1].outcomes = set(['PREV'])
-    suite.tests[2].outcomes = set(['PREV'])
-    suite.tests[3].outcomes = set(['PREV'])
+    test1.outcomes = set(['PREV'])
+    test2.outcomes = set(['PREV'])
+
+    suite.tests = [

[Michael Achenbach, 2016/08/05 09:02:41]

Btw: This test change reveals the problem.

+      test1.CopyAddingFlags(variant='default', flags=[]),
+      test1.CopyAddingFlags(variant='stress', flags=['-v']),
+      test2.CopyAddingFlags(variant='default', flags=[]),
+      test2.CopyAddingFlags(variant='stress', flags=['-v']),
+    ]
 
     suite.rules = {
       'default': {