--- /dev/null
+import gc
+import pprint
+import vpp_papi
+from vpp_papi_provider import VppPapiProvider
+import objgraph
+from pympler import tracker
+tr = tracker.SummaryTracker()
+
+"""
+ Internal debug module
+
+ The module provides functions for debugging test framework
+"""
+
+
+def on_tear_down_class(cls):
+ gc.collect()
+ tr.print_diff()
+ objects = gc.get_objects()
+ counter = 0
+ with open(cls.tempdir + '/python_objects.txt', 'w') as f:
+ interesting = [
+ o for o in objects
+ if isinstance(o, (VppPapiProvider, vpp_papi.VPP))]
+ del objects
+ gc.collect()
+ for o in interesting:
+ objgraph.show_backrefs([o], max_depth=5,
+ filename="%s/%s.png" %
+ (cls.tempdir, counter))
+ counter += 1
+ refs = gc.get_referrers(o)
+ pp = pprint.PrettyPrinter(indent=2)
+ f.write("%s\n" % pp.pformat(o))
+ for r in refs:
+ try:
+ f.write("%s\n" % pp.pformat(r))
+ except:
+ f.write("%s\n" % type(r))