Fix: e2e `test_070_run_sdntrace_untagged_vlan`

Closes #225

Summary

e2e test_070_run_sdntrace_untagged_vlan fails when the evc it tries to create exists. To prevent this test from failing, it checks not only that the evc was created, but also whether it already exists. So, in these two cases /traces is called.

Local Tests

tests/test_e2e_40_sdntrace.py ........... [100%]

=============================== warnings summary =============================== test_e2e_40_sdntrace.py: 49 warnings /usr/lib/python3/dist-packages/mininet/node.py:1121: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead. return ( StrictVersion( cls.OVSVersion ) <

test_e2e_40_sdntrace.py: 49 warnings /usr/lib/python3/dist-packages/mininet/node.py:1122: DeprecationWarning: distutils Version classes are deprecated. Use packaging.version instead. StrictVersion( '1.10' ) )

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html ------------------------------- start/stop times ------------------------------- ================= 11 passed, 98 warnings in 256.92s (0:04:16) ==================

End-to-End Tests

N/A

@viniarck, In the last commit I implemented that solution. e2e tests passed, individually and with the entire test suite.

tests/test_e2e_40_sdntrace.py ........... [100%]

kytos-ng / kytos-end-to-end-tests