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fix(lf): per-protocol identify label (native HID/AWID/FDX-B no longer KeyError)

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identify_lf built its label from emitted['id_hex'], which only EM4100 provides — a
native HID/AWID/FDX-B tag (no T5577 config) would KeyError. Add credential_label() to
format each decoder's own fields: "HID Prox H10301 FC.. Card..", "AWID-26 FC.. Card..",
"FDX-B 124-000000000555 (animal)", "EM4100 <id>". Tests for native FDX-B + HID labels.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
michael
2026-07-14 16:00:14 -07:00
parent 42d5f800cb
commit 5dd8e086cc
2 changed files with 29 additions and 2 deletions
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13
tests/test_lf_demod.py
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@@ -343,6 +343,19 @@ class TestIdentifyLF:
assert r["found"] and r["chip"] is None
assert r["label"] == "EM4100 1122334455"
def test_native_fdxb_label(self):
# a native FDX-B tag (no T55xx) must label per-protocol, not KeyError on id_hex
dev = _mock_lf_device(config_env=bytes([128] * 4000),
emitted_env=_fdxb_env(124, 555, animal=1))
r = identify_lf(dev)
assert r["found"] and r["chip"] is None
assert r["label"].startswith("FDX-B 124-000000000555")
def test_native_hid_label(self):
dev = _mock_lf_device(config_env=bytes([128] * 4000), emitted_env=_hid_env(12, 3456))
r = identify_lf(dev)
assert r["label"] == "HID Prox H10301 FC 12 Card 3456"
def test_nothing_on_antenna(self):
dev = _mock_lf_device(config_env=bytes([128] * 4000), emitted_env=bytes([128] * 4000))
assert identify_lf(dev) is None