selftest: Optimize get_bb_var use

get_bb_var calls bitbake every time it is used and every call
would take about 7 seconds. There are tests that calls get_bb_var
several times when they can use get_bb_vars. Also there are tests
that calls it to fetch the same variable over and over again.

This will optimize the use of get_bb_var and get_bb_vars for a
little speed up in the tests.

[YOCTO #11037]

Signed-off-by: Mariano Lopez <mariano.lopez@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>

1 files changed, 6 insertions, 3 deletions

diff --git a/meta/lib/oeqa/selftest/prservice.py b/meta/lib/oeqa/selftest/prservice.py
index 0b2dfe6494..34d419762c 100644
--- a/meta/lib/oeqa/selftest/prservice.py
+++ b/meta/lib/oeqa/selftest/prservice.py
@@ -12,10 +12,13 @@ from oeqa.utils.decorators import testcase
 from oeqa.utils.network import get_free_port
 
 class BitbakePrTests(oeSelfTest):
- 
+
+    @classmethod
+    def setUpClass(cls):
+        cls.pkgdata_dir = get_bb_var('PKGDATA_DIR')
+
     def get_pr_version(self, package_name):
-        pkgdata_dir = get_bb_var('PKGDATA_DIR')
-        package_data_file = os.path.join(pkgdata_dir, 'runtime', package_name)
+        package_data_file = os.path.join(self.pkgdata_dir, 'runtime', package_name)
         package_data = ftools.read_file(package_data_file)
         find_pr = re.search("PKGR: r[0-9]+\.([0-9]+)", package_data)
         self.assertTrue(find_pr, "No PKG revision found in %s" % package_data_file)