tools: make --repeat work with -j in test.py

The repeat option in test.py did not work as expected if `-j` was set to more than one. Repeated tests running at the same time could share temp directories and cause test failures. This was observed with: tools/test.py -J --repeat=10 parallel/test-fs-watch-recursive By using copy.deepCopy(), the repeated tests are separate objects and not references to the same objects. Setting `thread_id` on one of them will now not change the `thread_id` on all of them. And `thread_id` is how the temp directory (and common.PORT as well) are determined. Refs: #9228 PR-URL: #9249 Reviewed-By: Sakthipriyan Vairamani <[email protected]> Reviewed-By: Gibson Fahnestock <[email protected]> Reviewed-By: Michael Dawson <[email protected]> Reviewed-By: James M Snell <[email protected]> Reviewed-By: Santiago Gimeno <[email protected]>

Author: Trott

tools/test.py

@@ -42,6 +42,7 @@
 importutils
 importmultiprocessing
 importerrno
+importcopy
 
 fromos.pathimportjoin, dirname, abspath, basename, isdir, exists
 fromdatetimeimportdatetime
@@ -773,7 +774,9 @@ def AddTestsToList(self, result, current_path, path, context, arch, mode):
 tests=self.GetConfiguration(context).ListTests(current_path, path,
 arch, mode)
 fortintests: t.variant_flags=v
-result+=tests*context.repeat
+result+=tests
+foriinrange(1, context.repeat):
+result+=copy.deepcopy(tests)
 
 defGetTestStatus(self, context, sections, defs):
 self.GetConfiguration(context).GetTestStatus(sections, defs)