oeqa: avoid class setup method to run when skipping the whole class

For now, even if we have specified to skip the whole module/class via
command line, e.g., `oe-selftest -R gotoolchain', the class setup method
is still run. This at least results in unnecessary builds, and at worst
results in ERROR, if the setup method fails.

So improve the skipping mechanism to avoid class setup method to run
when specified to skip.

(From OE-Core rev: b0b79bf65f5e5e65958090a4a88622b42df896bf)

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/core/case.py

@@ -32,6 +32,8 @@ class OETestCase(unittest.TestCase):
     @classmethod
     def _oeSetUpClass(clss):
         _validate_td_vars(clss.td, clss.td_vars, "class")
+        if hasattr(clss, 'setUpHooker') and callable(getattr(clss, 'setUpHooker')):
+            clss.setUpHooker()
         clss.setUpClassMethod()
 
     @classmethod

meta/lib/oeqa/core/context.py

@@ -50,10 +50,18 @@ class OETestContext(object):
             def func():
                 raise unittest.SkipTest(skipmsg)
             return func
+        class_ids = {}
         for test in self.suites:
+            if test.__class__ not in class_ids:
+                class_ids[test.__class__] = '.'.join(test.id().split('.')[:-1])
             for skip in skips:
                 if (test.id()+'.').startswith(skip+'.'):
                     setattr(test, 'setUp', skipfuncgen('Skip by the command line argument "%s"' % skip))
+        for tclass in class_ids:
+            cid = class_ids[tclass]
+            for skip in skips:
+                if (cid + '.').startswith(skip + '.'):
+                    setattr(tclass, 'setUpHooker', skipfuncgen('Skip by the command line argument "%s"' % skip))
 
     def loadTests(self, module_paths, modules=[], tests=[],
             modules_manifest="", modules_required=[], filters={}):