selftest: base: new object member to store the DISTRO value

Instead of quering it multiple times, query once and use it on
test method skip checks. Also, rename current distro sstate object
member to a more meaninful name.

(From OE-Core rev: bde9d99575a63ad2d7fd5974ce6ce19aad9a8984)

Signed-off-by: Leonardo Sandoval <leonardo.sandoval.gonzalez@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/lib/oeqa/selftest/base.py

@@ -41,6 +41,7 @@ class oeSelfTest(unittest.TestCase):
             self.testinc_path, self.testinc_bblayers_path,
             self.machineinc_path, self.localconf_backup,
             self.local_bblayers_backup]
+        self.distro = get_bb_var('DISTRO')
         super(oeSelfTest, self).__init__(methodName)
 
     def setUp(self):

meta/lib/oeqa/selftest/sstate.py

@@ -14,8 +14,8 @@ class SStateBase(oeSelfTest):
     def setUpLocal(self):
         self.temp_sstate_location = None
         self.sstate_path = get_bb_var('SSTATE_DIR')
-        self.distro = get_bb_var('NATIVELSBSTRING')
-        self.distro_specific_sstate = os.path.join(self.sstate_path, self.distro)
+        self.hostdistro = get_bb_var('NATIVELSBSTRING')
+        self.distro_specific_sstate = os.path.join(self.sstate_path, self.hostdistro)
 
     # Creates a special sstate configuration with the option to add sstate mirrors
     def config_sstate(self, temp_sstate_location=False, add_local_mirrors=[]):
@@ -27,8 +27,8 @@ class SStateBase(oeSelfTest):
             self.append_config(config_temp_sstate)
             self.track_for_cleanup(temp_sstate_path)
         self.sstate_path = get_bb_var('SSTATE_DIR')
-        self.distro = get_bb_var('NATIVELSBSTRING')
-        self.distro_specific_sstate = os.path.join(self.sstate_path, self.distro)
+        self.hostdistro = get_bb_var('NATIVELSBSTRING')
+        self.distro_specific_sstate = os.path.join(self.sstate_path, self.hostdistro)
 
         if add_local_mirrors:
             config_set_sstate_if_not_set = 'SSTATE_MIRRORS ?= ""'
@@ -42,7 +42,7 @@ class SStateBase(oeSelfTest):
     def search_sstate(self, filename_regex, distro_specific=True, distro_nonspecific=True):
         result = []
         for root, dirs, files in os.walk(self.sstate_path):
-            if distro_specific and re.search("%s/[a-z0-9]{2}$" % self.distro, root):
+            if distro_specific and re.search("%s/[a-z0-9]{2}$" % self.hostdistro, root):
                 for f in files:
                     if re.search(filename_regex, f):
                         result.append(f)