feat: replace tcptrace with PyShark in TraceProcessor - #34
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tcptrace is unmaintained. Replace the subprocess shell-out with pyshark.FileCapture, which wraps Wireshark's actively-maintained dissectors and exposes tcp.analysis.ack_rtt, tcp.analysis.retransmission, and per-stream packet grouping natively in Python. _FlowAccumulator tracks tx_packets, unique_bytes, rexmt_packets, timestamps, and RTT samples per flow direction. _dominant_flow() picks the flow with the most unique bytes. The 12-element metrics list is preserved unchanged for downstream compatibility. Update test_trace.py: replace exe_comm mocks with SimpleNamespace fake packets and pyshark.FileCapture mocks. Add _FlowAccumulator unit tests. 56 tests, 99% coverage. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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tcptrace is unmaintained. Replace the subprocess shell-out with pyshark.FileCapture, which wraps Wireshark's actively-maintained dissectors and exposes tcp.analysis.ack_rtt, tcp.analysis.retransmission, and per-stream packet grouping natively in Python.
_FlowAccumulator tracks tx_packets, unique_bytes, rexmt_packets, timestamps, and RTT samples per flow direction. _dominant_flow() picks the flow with the most unique bytes. The 12-element metrics list is preserved unchanged for downstream compatibility.
Update test_trace.py: replace exe_comm mocks with SimpleNamespace fake packets and pyshark.FileCapture mocks. Add _FlowAccumulator unit tests. 56 tests, 99% coverage.