oeqa/core/threaded: Add OETestContextThreaded class

This class sets the {loader,runner}Class to the threaded versions and
overrides loadTests method to be able specify the process_num.

[YOCTO #11450]

(From OE-Core rev: 3ec0d3825aa31219e0ccabc1f158d3a2f8adbda2)

Signed-off-by: Aníbal Limón <anibal.limon@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/core/threaded.py

@@ -10,6 +10,7 @@ from unittest.suite import TestSuite
 
 from oeqa.core.loader import OETestLoader
 from oeqa.core.runner import OEStreamLogger, OETestResult, OETestRunner
+from oeqa.core.context import OETestContext
 
 class OETestLoaderThreaded(OETestLoader):
     def __init__(self, tc, module_paths, modules, tests, modules_required,
@@ -258,3 +259,16 @@ class OETestRunnerThreaded(OETestRunner):
         result._fill_tc_results()
 
         return result
+
+class OETestContextThreaded(OETestContext):
+    loaderClass = OETestLoaderThreaded
+    runnerClass = OETestRunnerThreaded
+
+    def loadTests(self, module_paths, modules=[], tests=[],
+            modules_manifest="", modules_required=[], filters={}, process_num=0):
+        if modules_manifest:
+            modules = self._read_modules_from_manifest(modules_manifest)
+
+        self.loader = self.loaderClass(self, module_paths, modules, tests,
+                modules_required, filters, process_num)
+        self.suites = self.loader.discover()