Updated classify single for new behaviour

Author: patches-kroll

tests/functional/test_classify_single.py

@@ -37,15 +37,13 @@ async def test_classify_single(
             msg = f"Image Result Error: {result.error.message}"
             pytest.fail(msg)
 
-        found_hash_check = False
-
+        # The WebIQ hash check runs against a 250ms budget and is abandoned
+        # if it exceeds it, in which case no KnownCSAM-* classification is
+        # emitted. Its presence is therefore not guaranteed, but when it is
+        # present the test image must be a clean no-match (weight 0.0).
         for classification in result.classifications:
             if classification.label.startswith("KnownCSAM-"):
                 assert classification.weight == 0.0
-                found_hash_check = True
-                break
-
-        assert found_hash_check, "No KnownHash- classification found"
 
         assert [
             classification