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63 lines
2.4 KiB
63 lines
2.4 KiB
"""CRC payload dedup: only seq > 0 triggers drop."""
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from __future__ import annotations
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import pytest
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from tests.harness.assertions import assert_forwarded, assert_inject_ok
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from tests.harness.deterministic import (
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DeterministicScenario,
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PacketSpec,
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active_bridge,
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add_openbridge_system,
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patch_bridge_wall_time,
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)
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def test_hbp_crc_dedup_drops_duplicate_seq_gt_zero() -> None:
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bridges = active_bridge(91, (("MASTER-A", 2), ("MASTER-B", 2)))
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scenario = DeterministicScenario(bridges=bridges)
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base = PacketSpec(dst_id=91, stream_id=0xABCD1234)
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burst = DeterministicScenario.voice_burst_spec(base, seq=2, dtype_vseq=2)
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t0 = scenario.clock.time()
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scenario.inject_hbp(
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"MASTER-A",
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DeterministicScenario.voice_head_spec(base),
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ingress_pkt_time=t0,
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)
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scenario.inject_hbp("MASTER-A", burst, ingress_pkt_time=t0 + 0.06)
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ok = scenario.inject_hbp("MASTER-A", burst, ingress_pkt_time=t0 + 0.12)
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assert not ok
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@pytest.mark.behavior
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def test_hbp_crc_dedup_allows_seq_zero_repeat() -> None:
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"""Regression: duplicate VHEAD with seq 0 still forwards (not subject to crc dedup)."""
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bridges = active_bridge(91, (("MASTER-A", 2), ("MASTER-B", 2)))
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scenario = DeterministicScenario(bridges=bridges)
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base = PacketSpec(dst_id=91, stream_id=0xDEADBEEF, seq=0)
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vhead = DeterministicScenario.voice_head_spec(base)
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t0 = scenario.clock.time()
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ok1 = scenario.inject_hbp("MASTER-A", vhead, ingress_pkt_time=t0)
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ok2 = scenario.inject_hbp("MASTER-A", vhead, ingress_pkt_time=t0 + 0.06)
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assert_inject_ok(ok1)
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assert_inject_ok(ok2)
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assert_forwarded(scenario, "MASTER-B", count=2, dst_id=91)
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def test_obp_crc_dedup_drops_duplicate_seq_gt_zero() -> None:
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bridges = active_bridge(52090, (("OBP-CL", 1), ("MASTER-A", 2)))
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config = DeterministicScenario().config
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add_openbridge_system(config, "OBP-CL")
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config["SYSTEMS"]["MASTER-A"]["TS2_STATIC"] = "52090"
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scenario = DeterministicScenario(config=config, bridges=bridges)
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base = PacketSpec(dst_id=52090, stream_id=0xCAFEBABE, slot=1)
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burst = DeterministicScenario.voice_burst_spec(base, seq=3, dtype_vseq=3)
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with patch_bridge_wall_time(scenario.clock):
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scenario.inject_obp("OBP-CL", DeterministicScenario.voice_head_spec(base))
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scenario.inject_obp("OBP-CL", burst)
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ok = scenario.inject_obp("OBP-CL", burst)
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assert not ok
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