Initial commit: import from sinmb79/Gov-chat-bot

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/tests/test_providers.py

@@ -0,0 +1,40 @@
+import pytest
+
+from app.providers.llm import NullLLMProvider
+from app.providers.embedding import NotImplementedEmbeddingProvider
+from app.providers import get_llm_provider, get_embedding_provider
+
+
+@pytest.mark.asyncio
+async def test_null_llm_provider_returns_none():
+    """NullLLMProvider().generate(...) == None."""
+    provider = NullLLMProvider()
+    result = await provider.generate("system", "user", [])
+    assert result is None
+
+
+def test_get_llm_provider_none_config():
+    """get_llm_provider({'LLM_PROVIDER':'none'}) == NullLLMProvider 인스턴스."""
+    provider = get_llm_provider({"LLM_PROVIDER": "none"})
+    assert isinstance(provider, NullLLMProvider)
+
+
+def test_get_llm_provider_unknown_raises():
+    """get_llm_provider({'LLM_PROVIDER':'xyz'}) → ValueError."""
+    with pytest.raises(ValueError):
+        get_llm_provider({"LLM_PROVIDER": "xyz"})
+
+
+@pytest.mark.asyncio
+async def test_not_implemented_embedding_raises_on_embed():
+    """NotImplementedEmbeddingProvider().embed(['test']) → NotImplementedError."""
+    provider = NotImplementedEmbeddingProvider()
+    with pytest.raises(NotImplementedError):
+        await provider.embed(["test"])
+
+
+@pytest.mark.asyncio
+async def test_not_implemented_embedding_warmup_is_noop():
+    """.warmup() 호출 시 예외 없이 통과."""
+    provider = NotImplementedEmbeddingProvider()
+    await provider.warmup()  # 예외 없어야 함