config test

selfdrive/car/fw_query_definitions.py

@@ -75,7 +75,7 @@ class FwQueryConfig:
   # Ecus added for data collection, not to be fingerprinted on
   extra_ecus: List[Tuple[capnp.lib.capnp._EnumModule, int, Optional[int]]] = field(default_factory=list)
 
-  # Brand-specific fuzzy fingerprinting options:
+  # Brand-specific fuzzy fingerprinting config:
   # The minimum number of version matches to fuzzy fingerprint
   fuzzy_min_match_count: int = 2
   # A function to get uniquely identifiable codes for a version

selfdrive/car/tests/test_fw_fingerprint.py

@@ -99,6 +99,15 @@ class TestFwFingerprint(unittest.TestCase):
       with self.subTest():
         self.fail(f"Brands do not implement FW_QUERY_CONFIG: {brand_versions - brand_configs}")
 
+  def test_fuzzy_fingerprint_config(self):
+    for brand, config in FW_QUERY_CONFIGS.items():
+      with self.subTest(brand=brand):
+        if config.fuzzy_get_platform_codes is None:
+          self.assertEqual(config.fuzzy_min_match_count, 2, "Cannot override minimum match count without full config")
+          self.assertEqual(len(config.fuzzy_ecus), 0, "Cannot specify fuzzy ECUs without full config")
+        else:
+          self.assertGreater(len(config.fuzzy_ecus), 0, "Need to specify fuzzy ECUs")
+
   def test_fw_request_ecu_whitelist(self):
     for brand, config in FW_QUERY_CONFIGS.items():
       with self.subTest(brand=brand):