feat: increases coverage for rag completion retriever

cognee/tests/unit/modules/retrieval/rag_completion_retriever_test.py

@@ -158,3 +158,164 @@ async def test_get_completion_with_provided_context(mock_vector_engine):
     assert isinstance(completion, list)
     assert len(completion) == 1
     assert completion[0] == "Generated answer"
+
+
+@pytest.mark.asyncio
+async def test_get_completion_with_session(mock_vector_engine):
+    """Test get_completion with session caching enabled."""
+    mock_result = MagicMock()
+    mock_result.payload = {"text": "Chunk text"}
+    mock_vector_engine.search.return_value = [mock_result]
+
+    retriever = CompletionRetriever()
+
+    mock_user = MagicMock()
+    mock_user.id = "test-user-id"
+
+    with (
+        patch(
+            "cognee.modules.retrieval.completion_retriever.get_vector_engine",
+            return_value=mock_vector_engine,
+        ),
+        patch(
+            "cognee.modules.retrieval.completion_retriever.get_conversation_history",
+            return_value="Previous conversation",
+        ),
+        patch(
+            "cognee.modules.retrieval.completion_retriever.summarize_text",
+            return_value="Context summary",
+        ),
+        patch(
+            "cognee.modules.retrieval.completion_retriever.generate_completion",
+            return_value="Generated answer",
+        ),
+        patch(
+            "cognee.modules.retrieval.completion_retriever.save_conversation_history",
+        ) as mock_save,
+        patch("cognee.modules.retrieval.completion_retriever.CacheConfig") as mock_cache_config,
+        patch("cognee.modules.retrieval.completion_retriever.session_user") as mock_session_user,
+    ):
+        mock_config = MagicMock()
+        mock_config.caching = True
+        mock_cache_config.return_value = mock_config
+        mock_session_user.get.return_value = mock_user
+
+        completion = await retriever.get_completion("test query", session_id="test_session")
+
+    assert isinstance(completion, list)
+    assert len(completion) == 1
+    assert completion[0] == "Generated answer"
+    mock_save.assert_awaited_once()
+
+
+@pytest.mark.asyncio
+async def test_get_completion_with_session_no_user_id(mock_vector_engine):
+    """Test get_completion with session config but no user ID."""
+    mock_result = MagicMock()
+    mock_result.payload = {"text": "Chunk text"}
+    mock_vector_engine.search.return_value = [mock_result]
+
+    retriever = CompletionRetriever()
+
+    with (
+        patch(
+            "cognee.modules.retrieval.completion_retriever.get_vector_engine",
+            return_value=mock_vector_engine,
+        ),
+        patch(
+            "cognee.modules.retrieval.completion_retriever.generate_completion",
+            return_value="Generated answer",
+        ),
+        patch("cognee.modules.retrieval.completion_retriever.CacheConfig") as mock_cache_config,
+        patch("cognee.modules.retrieval.completion_retriever.session_user") as mock_session_user,
+    ):
+        mock_config = MagicMock()
+        mock_config.caching = True
+        mock_cache_config.return_value = mock_config
+        mock_session_user.get.return_value = None  # No user
+
+        completion = await retriever.get_completion("test query")
+
+    assert isinstance(completion, list)
+    assert len(completion) == 1
+
+
+@pytest.mark.asyncio
+async def test_get_completion_with_response_model(mock_vector_engine):
+    """Test get_completion with custom response model."""
+    from pydantic import BaseModel
+
+    class TestModel(BaseModel):
+        answer: str
+
+    mock_result = MagicMock()
+    mock_result.payload = {"text": "Chunk text"}
+    mock_vector_engine.search.return_value = [mock_result]
+
+    retriever = CompletionRetriever()
+
+    with (
+        patch(
+            "cognee.modules.retrieval.completion_retriever.get_vector_engine",
+            return_value=mock_vector_engine,
+        ),
+        patch(
+            "cognee.modules.retrieval.completion_retriever.generate_completion",
+            return_value=TestModel(answer="Test answer"),
+        ),
+        patch("cognee.modules.retrieval.completion_retriever.CacheConfig") as mock_cache_config,
+    ):
+        mock_config = MagicMock()
+        mock_config.caching = False
+        mock_cache_config.return_value = mock_config
+
+        completion = await retriever.get_completion("test query", response_model=TestModel)
+
+    assert isinstance(completion, list)
+    assert len(completion) == 1
+    assert isinstance(completion[0], TestModel)
+
+
+@pytest.mark.asyncio
+async def test_init_defaults():
+    """Test CompletionRetriever initialization with defaults."""
+    retriever = CompletionRetriever()
+
+    assert retriever.user_prompt_path == "context_for_question.txt"
+    assert retriever.system_prompt_path == "answer_simple_question.txt"
+    assert retriever.top_k == 1
+    assert retriever.system_prompt is None
+
+
+@pytest.mark.asyncio
+async def test_init_custom_params():
+    """Test CompletionRetriever initialization with custom parameters."""
+    retriever = CompletionRetriever(
+        user_prompt_path="custom_user.txt",
+        system_prompt_path="custom_system.txt",
+        system_prompt="Custom prompt",
+        top_k=10,
+    )
+
+    assert retriever.user_prompt_path == "custom_user.txt"
+    assert retriever.system_prompt_path == "custom_system.txt"
+    assert retriever.system_prompt == "Custom prompt"
+    assert retriever.top_k == 10
+
+
+@pytest.mark.asyncio
+async def test_get_context_missing_text_key(mock_vector_engine):
+    """Test get_context handles missing text key in payload."""
+    mock_result = MagicMock()
+    mock_result.payload = {"other_key": "value"}
+
+    mock_vector_engine.search.return_value = [mock_result]
+
+    retriever = CompletionRetriever()
+
+    with patch(
+        "cognee.modules.retrieval.completion_retriever.get_vector_engine",
+        return_value=mock_vector_engine,
+    ):
+        with pytest.raises(KeyError):
+            await retriever.get_context("test query")