Hyundai: add platform code fuzzy FW test (commaai#29847)

add test to assert no crashing

selfdrive/car/hyundai/tests/test_hyundai.py

@@ -1,4 +1,5 @@
 #!/usr/bin/env python3
+from hypothesis import settings, given, strategies as st
 import unittest
 
 from cereal import car
@@ -66,6 +67,14 @@ def test_blacklisted_parts(self):
           part = code.split(b"-")[1]
           self.assertFalse(part.startswith(b'CW'), "Car has bad part number")
 
+  @settings(max_examples=100)
+  @given(data=st.data())
+  def test_platform_codes_fuzzy_fw(self, data):
+    """Ensure function doesn't raise an exception"""
+    fw_strategy = st.lists(st.binary())
+    fws = data.draw(fw_strategy)
+    get_platform_codes(fws)
+
   # Tests for platform codes, part numbers, and FW dates which Hyundai will use to fuzzy
   # fingerprint in the absence of full FW matches:
   def test_platform_code_ecus_available(self):