chore: import upstream snapshot with attribution

2026-07-13 12:59:56 +08:00
commit e93507a09c
2027 changed files with 674044 additions and 0 deletions
@@ -0,0 +1,81 @@
+# SPDX-License-Identifier: AGPL-3.0-only
+# Copyright 2026-present the Unsloth AI Inc. team. All rights reserved.
+
+import contextlib
+import os
+import sys
+import threading
+
+import httpx
+import pytest
+
+_backend = os.path.join(os.path.dirname(__file__), "..")
+sys.path.insert(0, _backend)
+
+from core.inference.llama_cpp import LlamaCppBackend, _LlamaStreamCancelled
+
+
+def _backend_stub() -> LlamaCppBackend:
+    backend = LlamaCppBackend.__new__(LlamaCppBackend)
+    backend._process = object()
+    backend._healthy = True
+    backend._port = 48848
+    backend._effective_context_length = 4096
+    backend._supports_reasoning = False
+    backend._reasoning_always_on = False
+    backend._reasoning_style = "enable_thinking"
+    backend._supports_preserve_thinking = False
+    return backend
+
+
+def test_stream_cancel_uses_internal_exception_not_generator_exit():
+    class FakeResponse:
+        status_code = 200
+
+        def close(self):
+            pass
+
+    class FakeStream:
+        def __enter__(self):
+            return FakeResponse()
+
+        def __exit__(self, *_args):
+            return False
+
+    class FakeClient:
+        def stream(self, *_args, **_kwargs):
+            return FakeStream()
+
+    cancel_event = threading.Event()
+
+    with pytest.raises(Exception) as exc_info:
+        with LlamaCppBackend._stream_with_retry(
+            FakeClient(),
+            "http://llama.test/v1/chat/completions",
+            {},
+            cancel_event,
+        ):
+            cancel_event.set()
+            raise httpx.ReadError("client closed")
+
+    assert exc_info.type is _LlamaStreamCancelled
+    assert not issubclass(exc_info.type, GeneratorExit)
+
+
+def test_generate_chat_completion_swallows_internal_stream_cancel(monkeypatch):
+    backend = _backend_stub()
+
+    @contextlib.contextmanager
+    def fake_open_stream(*_args, **_kwargs):
+        raise _LlamaStreamCancelled
+
+    monkeypatch.setattr(backend, "_open_stream", fake_open_stream)
+
+    chunks = list(
+        backend.generate_chat_completion(
+            [{"role": "user", "content": "hi"}],
+            cancel_event = threading.Event(),
+        )
+    )
+
+    assert chunks == []