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crewAI/lib/crewai/tests/llms/snowflake/test_snowflake.py

278 lines
9.8 KiB
Python

from __future__ import annotations
from types import SimpleNamespace
from unittest.mock import Mock, patch
import pytest
from crewai.llm import LLM
from crewai.llms.providers.snowflake.completion import (
SNOWFLAKE_CORTEX_PATH,
SnowflakeCompletion,
_normalize_snowflake_base_url,
)
def _snowflake_env(monkeypatch: pytest.MonkeyPatch) -> None:
monkeypatch.setenv("SNOWFLAKE_PAT", "test-pat")
monkeypatch.setenv("SNOWFLAKE_ACCOUNT_URL", "https://org-account.snowflakecomputing.com")
monkeypatch.delenv("SNOWFLAKE_TOKEN", raising=False)
monkeypatch.delenv("SNOWFLAKE_JWT", raising=False)
monkeypatch.delenv("SNOWFLAKE_ACCOUNT", raising=False)
monkeypatch.delenv("SNOWFLAKE_ACCOUNT_ID", raising=False)
monkeypatch.delenv("SNOWFLAKE_ACCOUNT_IDENTIFIER", raising=False)
class TestSnowflakeConfig:
def test_normalizes_account_url_to_cortex_base_url(self):
assert (
_normalize_snowflake_base_url("https://org-account.snowflakecomputing.com")
== f"https://org-account.snowflakecomputing.com{SNOWFLAKE_CORTEX_PATH}"
)
def test_preserves_existing_cortex_base_url(self):
base_url = f"https://org-account.snowflakecomputing.com{SNOWFLAKE_CORTEX_PATH}"
assert _normalize_snowflake_base_url(base_url) == base_url
def test_rejects_endpoint_path_in_base_url(self):
with pytest.raises(ValueError, match="do not include endpoint paths"):
_normalize_snowflake_base_url(
"https://org-account.snowflakecomputing.com"
f"{SNOWFLAKE_CORTEX_PATH}/chat/completions"
)
def test_empty_api_key_falls_back_to_env_token(
self, monkeypatch: pytest.MonkeyPatch
):
_snowflake_env(monkeypatch)
llm = SnowflakeCompletion(model="openai-gpt-4.1", api_key="")
assert llm.api_key == "test-pat"
def test_uses_env_token_and_account_url(self, monkeypatch: pytest.MonkeyPatch):
_snowflake_env(monkeypatch)
llm = SnowflakeCompletion(model="openai-gpt-4.1")
assert llm.api_key == "test-pat"
assert llm.base_url == (
f"https://org-account.snowflakecomputing.com{SNOWFLAKE_CORTEX_PATH}"
)
assert llm.account_url == llm.base_url
def test_strips_litellm_pat_prefix_for_compatibility(
self, monkeypatch: pytest.MonkeyPatch
):
monkeypatch.setenv("SNOWFLAKE_PAT", "pat/test-pat")
monkeypatch.setenv("SNOWFLAKE_ACCOUNT", "org-account")
llm = SnowflakeCompletion(model="openai-gpt-4.1")
assert llm.api_key == "test-pat"
def test_missing_token_raises_clear_error(self, monkeypatch: pytest.MonkeyPatch):
monkeypatch.delenv("SNOWFLAKE_PAT", raising=False)
monkeypatch.delenv("SNOWFLAKE_TOKEN", raising=False)
monkeypatch.delenv("SNOWFLAKE_JWT", raising=False)
monkeypatch.setenv("SNOWFLAKE_ACCOUNT_URL", "https://org-account.snowflakecomputing.com")
with pytest.raises(ValueError, match="Snowflake token is required"):
SnowflakeCompletion(model="openai-gpt-4.1")
def test_missing_account_raises_clear_error(self, monkeypatch: pytest.MonkeyPatch):
monkeypatch.setenv("SNOWFLAKE_PAT", "test-pat")
monkeypatch.delenv("SNOWFLAKE_ACCOUNT_URL", raising=False)
monkeypatch.delenv("SNOWFLAKE_ACCOUNT", raising=False)
monkeypatch.delenv("SNOWFLAKE_ACCOUNT_ID", raising=False)
monkeypatch.delenv("SNOWFLAKE_ACCOUNT_IDENTIFIER", raising=False)
with pytest.raises(ValueError, match="Snowflake account URL is required"):
SnowflakeCompletion(model="openai-gpt-4.1")
def test_responses_api_is_rejected(self, monkeypatch: pytest.MonkeyPatch):
_snowflake_env(monkeypatch)
with pytest.raises(ValueError, match="supports only the Chat Completions API"):
SnowflakeCompletion(model="openai-gpt-4.1", api="responses")
class TestSnowflakeFactory:
def test_llm_creates_native_snowflake_provider(
self, monkeypatch: pytest.MonkeyPatch
):
_snowflake_env(monkeypatch)
llm = LLM(model="snowflake/openai-gpt-4.1")
assert isinstance(llm, SnowflakeCompletion)
assert llm.provider == "snowflake"
assert llm.model == "openai-gpt-4.1"
assert llm.is_litellm is False
def test_explicit_provider_creates_native_snowflake_provider(
self, monkeypatch: pytest.MonkeyPatch
):
_snowflake_env(monkeypatch)
llm = LLM(model="claude-sonnet-4-5", provider="snowflake")
assert isinstance(llm, SnowflakeCompletion)
assert llm.model == "claude-sonnet-4-5"
class TestSnowflakeRequests:
def test_prepare_completion_params_uses_snowflake_model_name(
self, monkeypatch: pytest.MonkeyPatch
):
_snowflake_env(monkeypatch)
llm = SnowflakeCompletion(
model="openai-gpt-4.1",
temperature=0.2,
max_completion_tokens=128,
)
params = llm._prepare_completion_params(
[{"role": "user", "content": "Hello"}]
)
assert params["model"] == "openai-gpt-4.1"
assert params["temperature"] == 0.2
assert params["max_completion_tokens"] == 128
assert params["messages"] == [{"role": "user", "content": "Hello"}]
def test_claude_model_removes_trailing_assistant_prefill(
self, monkeypatch: pytest.MonkeyPatch
):
_snowflake_env(monkeypatch)
llm = SnowflakeCompletion(model="claude-sonnet-4-5")
messages = llm._format_messages(
[
{"role": "user", "content": "Write a summary."},
{"role": "assistant", "content": "Here is"},
]
)
assert messages == [{"role": "user", "content": "Write a summary."}]
def test_claude_model_removes_dangling_tool_call_without_result(
self, monkeypatch: pytest.MonkeyPatch
):
_snowflake_env(monkeypatch)
llm = SnowflakeCompletion(model="claude-sonnet-4-5")
messages = llm._format_messages(
[
{"role": "user", "content": "Use the tool."},
{
"role": "assistant",
"content": None,
"tool_calls": [
{
"id": "call_1",
"type": "function",
"function": {"name": "lookup", "arguments": "{}"},
}
],
},
]
)
assert messages == [{"role": "user", "content": "Use the tool."}]
def test_claude_model_preserves_complete_tool_call_result_pair(
self, monkeypatch: pytest.MonkeyPatch
):
_snowflake_env(monkeypatch)
llm = SnowflakeCompletion(model="claude-sonnet-4-5")
messages = llm._format_messages(
[
{"role": "user", "content": "Use the tool."},
{
"role": "assistant",
"content": None,
"tool_calls": [
{
"id": "call_1",
"type": "function",
"function": {"name": "lookup", "arguments": "{}"},
}
],
},
{
"role": "tool",
"tool_call_id": "call_1",
"content": "result",
},
]
)
assert messages[-3]["role"] == "assistant"
assert messages[-3]["tool_calls"][0]["id"] == "call_1"
assert messages[-2] == {
"role": "tool",
"tool_call_id": "call_1",
"content": "result",
}
assert messages[-1]["role"] == "user"
def test_claude_model_maps_max_tokens_to_max_completion_tokens(
self, monkeypatch: pytest.MonkeyPatch
):
_snowflake_env(monkeypatch)
llm = SnowflakeCompletion(model="claude-sonnet-4-5", max_tokens=256)
params = llm._prepare_completion_params(
[{"role": "user", "content": "Hello"}]
)
assert "max_tokens" not in params
assert params["max_completion_tokens"] == 256
def test_streaming_params_include_usage(self, monkeypatch: pytest.MonkeyPatch):
_snowflake_env(monkeypatch)
llm = SnowflakeCompletion(model="openai-gpt-4.1", stream=True)
params = llm._prepare_completion_params(
[{"role": "user", "content": "Hello"}]
)
assert params["stream"] is True
assert params["stream_options"] == {"include_usage": True}
def test_non_streaming_call_uses_native_openai_client(
self, monkeypatch: pytest.MonkeyPatch
):
_snowflake_env(monkeypatch)
llm = SnowflakeCompletion(model="openai-gpt-4.1")
fake_response = SimpleNamespace(
usage=SimpleNamespace(
prompt_tokens=3,
completion_tokens=2,
total_tokens=5,
prompt_tokens_details=None,
completion_tokens_details=None,
),
choices=[
SimpleNamespace(
message=SimpleNamespace(content="Snowflake response", tool_calls=None)
)
],
)
create = Mock(return_value=fake_response)
fake_client = SimpleNamespace(
chat=SimpleNamespace(completions=SimpleNamespace(create=create))
)
with patch.object(llm, "_get_sync_client", return_value=fake_client):
response = llm.call([{"role": "user", "content": "Hello"}])
assert response == "Snowflake response"
create.assert_called_once()
assert create.call_args.kwargs["model"] == "openai-gpt-4.1"
assert create.call_args.kwargs["messages"] == [
{"role": "user", "content": "Hello"}
]