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import os
import unittest
from framework import VppTestCase, VppTestRunner
from vpp_papi import VppEnum
import json
class TestJsonApiTrace(VppTestCase):
"""JSON API trace related tests"""
@classmethod
def setUpClass(cls):
super(TestJsonApiTrace, cls).setUpClass()
def setUp(self):
self.vapi.cli("api trace free")
self.vapi.cli("api trace on")
self.vapi.cli("api trace tx on")
@classmethod
def tearDownClass(cls):
super(TestJsonApiTrace, cls).tearDownClass()
def test_json_api_trace_save(self):
self.vapi.show_version()
fname = "test_api_trace-%d.json" % self.vpp.pid
tmp_api_trace = "/tmp/%s" % fname
fpath = "%s/%s" % (self.tempdir, fname)
self.vapi.cli("api trace save-json {}".format(fname))
os.rename(tmp_api_trace, fpath)
with open(fpath, encoding="utf-8") as f:
s = f.read()
trace = json.loads(s)
found = False
for o in trace:
if o["_msgname"] == "show_version":
found = True
break
self.assertTrue(found)
self.assertEquals(o["_msgname"], "show_version")
def test_json_api_trace_replay(self):
fname = "/tmp/create_loop.json"
req = """
[
{
"_msgname": "create_loopback",
"_crc": "42bb5d22",
"mac_address": "00:00:00:00:00:00"
}]
"""
with open(fname, "w") as f:
f.write(req)
self.vapi.cli("api trace replay-json {}".format(fname))
r = self.vapi.sw_interface_dump(name_filter="loop", name_filter_valid=True)
self.assertEqual(len(r), 1)
self.assertEqual(r[0].interface_name, "loop0")
if __name__ == "__main__":
unittest.main(testRunner=VppTestRunner)
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