oeqa: write @OETestTag content into json test reports for each case

This allows using these tags for classification and filtering of test results
according to various organization-specific criteria, such as teams
responsible for the test, internal test ids, feature domains and so on.

Test name itself meanwhile can stay short and human-readable.

(From OE-Core rev: 3801b126eb52cd46efe417111afcd27f05d8f72b)

Signed-off-by: Alexander Kanavin <alex.kanavin@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/core/runner.py

@@ -195,6 +195,20 @@ class OETestResult(_TestResult):
                 report['log'] = log
             if duration:
                 report['duration'] = duration
+
+            alltags = []
+            # pull tags from the case class
+            if hasattr(case, "__oeqa_testtags"):
+                alltags.extend(getattr(case, "__oeqa_testtags"))
+            # pull tags from the method itself
+            test_name = case._testMethodName
+            if hasattr(case, test_name):
+                method = getattr(case, test_name)
+                if hasattr(method, "__oeqa_testtags"):
+                    alltags.extend(getattr(method, "__oeqa_testtags"))
+            if alltags:
+                report['oetags'] = alltags
+
             if dump_streams and case.id() in self.logged_output:
                 (stdout, stderr) = self.logged_output[case.id()]
                 report['stdout'] = stdout