oetest.py: Add default pscmd to oeTest

pscmd is used by some tests to get the process
running on the target. If the test are exported
there won't be any pscmd attibute in the oeTest.

This adds "ps" as default pscmd.

(From OE-Core rev: 44aa8c3b6747179a0c4c156fc4922d838cdc19a4)

Signed-off-by: Mariano Lopez <mariano.lopez@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/oetest.py

@@ -54,6 +54,7 @@ def filterByTagExp(testsuite, tagexp):
 @LogResults
 class oeTest(unittest.TestCase):
 
+    pscmd = "ps"
     longMessage = True
 
     @classmethod
@@ -373,7 +374,8 @@ class RuntimeTestContext(TestContext):
 
     def loadTests(self):
         super(RuntimeTestContext, self).loadTests()
-        setattr(oeRuntimeTest, "pscmd", "ps -ef" if oeTest.hasPackage("procps") else "ps")
+        if oeTest.hasPackage("procps"):
+            oeRuntimeTest.pscmd = "ps -ef"
 
 class ImageTestContext(RuntimeTestContext):
     def __init__(self, d, target, host_dumper):