[OE-core] [PATCHv2 2/2] oeqa/core/loader.py: Avoid importing tests with built-ins name

[mariano.lopez at linux.intel.com]

From: Mariano Lopez <mariano.lopez at linux.intel.com>

If importing a test with the same name as a built-in module,
it will silently import the built-in and check for tests in
built-in module. This happened with syslog module in debian
based machines, so add a raise to avoid this behavior.

[YOCTO #10978]

Signed-off-by: Mariano Lopez <mariano.lopez at linux.intel.com>
---
 meta/lib/oeqa/core/loader.py | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/meta/lib/oeqa/core/loader.py b/meta/lib/oeqa/core/loader.py
index b9ba923..74f1117 100644
--- a/meta/lib/oeqa/core/loader.py
+++ b/meta/lib/oeqa/core/loader.py
@@ -216,6 +216,13 @@ class OETestLoader(unittest.TestLoader):
     # use_load_tests deprecation via *args and **kws.  See issue 16662.
     if sys.version_info >= (3,5):
         def loadTestsFromModule(self, module, *args, pattern=None, **kws):
+            """
+                Returns a suite of all tests cases contained in module.
+            """
+            if module.__name__ in sys.builtin_module_names:
+                msg = 'Tried to import %s test module but is a built-in'
+                raise ImportError(msg % module.__name__)
+
             if not self.modules or "all" in self.modules or \
                     module.__name__ in self.modules:
                 return super(OETestLoader, self).loadTestsFromModule(
@@ -227,6 +234,10 @@ class OETestLoader(unittest.TestLoader):
             """
                 Returns a suite of all tests cases contained in module.
             """
+            if module.__name__ in sys.builtin_module_names:
+                msg = 'Tried to import %s test module but is a built-in'
+                raise ImportError(msg % module.__name__)
+
             if not self.modules or "all" in self.modules or \
                     module.__name__ in self.modules:
                 return super(OETestLoader, self).loadTestsFromModule(
-- 
2.6.6