[Structured Output][Reasoning] Improves decoding throughput for models using single-token reasoning endings. (#30056)

tests/reasoning/test_deepseekv3_reasoning_parser.py

@@ -40,6 +40,7 @@ def test_identity_reasoning_parser_basic(tokenizer):
     input_tokens = tokenizer.tokenize(input_text)
     input_ids = tokenizer.convert_tokens_to_ids(input_tokens)
     assert parser.is_reasoning_end(input_ids) is True
+    assert parser.is_reasoning_end_streaming(input_ids, input_ids) is True
 
     # Test extract_content_ids returns all input_ids
     assert parser.extract_content_ids(input_ids) == input_ids