oeqa.buildperf: make tests independent

Add test set-up functionality so that the individual tests do not depend
on each other. This should make sure that a failure in one test does not
affect the results of another test. The patch also makes it reasonable
to run only a subset of the tests by using the --run-tests option.

The increase in total execution time of the full suite - caused by the
additional set-up steps - is insignificant because normally no
additional tasks need to be run. The previous test has already done all
set-up work.

(From OE-Core rev: 69b3c63e32d09ea4a41b21daacdff6bf1fc447c1)

Signed-off-by: Markus Lehtonen <markus.lehtonen@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/meta/lib/oeqa/buildperf/base.py b/meta/lib/oeqa/buildperf/base.py
index e4a79486f2..83439f1bdb 100644
--- a/meta/lib/oeqa/buildperf/base.py
+++ b/meta/lib/oeqa/buildperf/base.py
@@ -257,6 +257,7 @@ class BuildPerfTestCase(unittest.TestCase):
     """Base class for build performance tests"""
     SYSRES = 'sysres'
     DISKUSAGE = 'diskusage'
+    build_target = None
 
     def __init__(self, *args, **kwargs):
         super(BuildPerfTestCase, self).__init__(*args, **kwargs)
@@ -271,6 +272,12 @@ class BuildPerfTestCase(unittest.TestCase):
         self.times = []
         self.sizes = []
 
+    def setUp(self):
+        """Set-up fixture for each test"""
+        if self.build_target:
+            self.log_cmd_output(['bitbake', self.build_target,
+                                 '-c', 'fetchall'])
+
     def run(self, *args, **kwargs):
         """Run test"""
         self.start_time = datetime.now()