1 files changed, 139 insertions, 0 deletions
diff --git a/server/tests/util/openai_mock.py b/server/tests/util/openai_mock.py
new file mode 100644
index 00000000..763c5647
--- /dev/null
+++ b/server/tests/util/openai_mock.py
@@ -0,0 +1,139 @@
+import asyncio
+import os
+import random
+import subprocess
+from typing import Dict, List, Optional
+
+from fastapi import FastAPI
+from fastapi.responses import StreamingResponse
+from pydantic import BaseModel
+
+openai = FastAPI()
+
+
+class CompletionBody(BaseModel):
+    prompt: str
+    max_tokens: Optional[int] = 60
+    stream: Optional[bool] = False
+
+    class Config:
+        extra = "allow"
+
+
+@openai.post("/completions")
+@openai.post("/v1/completions")
+async def mock_completion(item: CompletionBody):
+    prompt = item.prompt
+
+    text = "This is a fake completion."
+
+    if item.stream:
+
+        async def stream_text():
+            for i in range(len(text)):
+                word = random.choice(prompt.split())
+                yield {
+                    "choices": [
+                        {
+                            "delta": {"role": "assistant", "content": word},
+                            "finish_reason": None,
+                            "index": 0,
+                        }
+                    ],
+                    "created": 1677825464,
+                    "id": "chatcmpl-6ptKyqKOGXZT6iQnqiXAH8adNLUzD",
+                    "model": "gpt-3.5-turbo-0301",
+                    "object": "chat.completion.chunk",
+                }
+                await asyncio.sleep(0.1)
+
+        return StreamingResponse(stream_text(), media_type="text/plain")
+
+    return {
+        "id": "cmpl-uqkvlQyYK7bGYrRHQ0eXlWi7",
+        "object": "text_completion",
+        "created": 1589478378,
+        "model": "gpt-3.5-turbo",
+        "choices": [
+            {
+                "text": text,
+                "index": 0,
+                "logprobs": None,
+                "finish_reason": "length",
+            }
+        ],
+        "usage": {"prompt_tokens": 5, "completion_tokens": 7, "total_tokens": 12},
+    }
+
+
+class ChatBody(BaseModel):
+    messages: List[Dict[str, str]]
+    max_tokens: Optional[int] = None
+    stream: Optional[bool] = False
+
+    class Config:
+        extra = "allow"
+
+
+@openai.post("/v1/chat/completions")
+async def mock_chat_completion(item: ChatBody):
+    text = "This is a fake completion."
+
+    if item.stream:
+
+        async def stream_text():
+            for i in range(len(text)):
+                word = text[i]
+                yield {
+                    "choices": [
+                        {
+                            "delta": {"role": "assistant", "content": word},
+                            "finish_reason": None,
+                            "index": 0,
+                        }
+                    ],
+                    "created": 1677825464,
+                    "id": "chatcmpl-6ptKyqKOGXZT6iQnqiXAH8adNLUzD",
+                    "model": "gpt-3.5-turbo-0301",
+                    "object": "chat.completion.chunk",
+                }
+                await asyncio.sleep(0.1)
+
+        return StreamingResponse(stream_text(), media_type="text/plain")
+
+    return {
+        "id": "chatcmpl-123",
+        "object": "chat.completion",
+        "created": 1677652288,
+        "model": "gpt-3.5-turbo-0613",
+        "choices": [
+            {
+                "index": 0,
+                "message": {
+                    "role": "assistant",
+                    "content": text,
+                },
+                "finish_reason": "stop",
+            }
+        ],
+        "usage": {"prompt_tokens": 9, "completion_tokens": 12, "total_tokens": 21},
+    }
+
+
+def start_openai(port: int = 8000):
+    server = subprocess.Popen(
+        [
+            "uvicorn",
+            "openai_mock:openai",
+            "--host",
+            "127.0.0.1",
+            "--port",
+            str(port),
+        ],
+        cwd=os.path.dirname(__file__),
+    )
+    return server
+
+
+if __name__ == "__main__":
+    start_openai()