DataDesigner/packages/data-designer-engine/tests/engine/test_model_provider.py

135 lines
4.8 KiB
Python

# SPDX-FileCopyrightText: Copyright (c) 2025-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
import pytest
from data_designer.config.mcp import LocalStdioMCPProvider
from data_designer.engine.errors import NoModelProvidersError
from data_designer.engine.model_provider import (
MCPProviderRegistry,
ModelProvider,
ModelProviderRegistry,
UnknownProviderError,
resolve_model_provider_registry,
)
@pytest.fixture
def stub_foo_provider():
return ModelProvider(name="foo", endpoint="https://foo.com", provider_type="foo")
@pytest.fixture
def stub_bar_provider():
return ModelProvider(name="bar", endpoint="https://bar.com", provider_type="bar")
def test_must_have_at_least_one_provider():
with pytest.raises(ValueError):
ModelProviderRegistry(providers=[], default="a")
with pytest.raises(ValueError):
ModelProviderRegistry(providers=[])
def test_defined_default_must_exist(stub_foo_provider: ModelProvider):
with pytest.raises(ValueError):
ModelProviderRegistry(providers=[stub_foo_provider], default="bar")
def test_multiple_providers_requires_explicit_default(
stub_foo_provider: ModelProvider, stub_bar_provider: ModelProvider
):
with pytest.raises(ValueError):
ModelProviderRegistry(providers=[stub_foo_provider, stub_bar_provider])
def test_implicit_default(stub_foo_provider: ModelProvider):
registry = ModelProviderRegistry(providers=[stub_foo_provider])
assert registry.get_provider(None) == stub_foo_provider
def test_no_duplicate_provider_names(stub_foo_provider: ModelProvider):
with pytest.raises(ValueError):
ModelProviderRegistry(providers=[stub_foo_provider, stub_foo_provider], default="foo")
def test_get_provider(stub_foo_provider: ModelProvider, stub_bar_provider: ModelProvider):
registry = ModelProviderRegistry(
providers=[stub_foo_provider, stub_bar_provider],
default="foo",
)
assert registry.get_provider(None) == stub_foo_provider
assert registry.get_provider("foo") == stub_foo_provider
assert registry.get_provider("bar") == stub_bar_provider
with pytest.raises(UnknownProviderError):
registry.get_provider("quux")
def test_resolve_model_provider_registry(stub_foo_provider: ModelProvider) -> None:
"""Test resolve_model_provider_registry creates a registry from providers."""
registry = resolve_model_provider_registry([stub_foo_provider])
assert len(registry.providers) == 1
assert registry.get_default_provider_name() == "foo"
def test_resolve_model_provider_registry_with_explicit_default(
stub_foo_provider: ModelProvider, stub_bar_provider: ModelProvider
) -> None:
"""Test resolve_model_provider_registry with explicit default."""
registry = resolve_model_provider_registry([stub_foo_provider, stub_bar_provider], default_provider_name="bar")
assert registry.get_default_provider_name() == "bar"
def test_resolve_model_provider_registry_empty_error() -> None:
"""Test resolve_model_provider_registry raises error for empty providers."""
with pytest.raises(NoModelProvidersError, match="At least one model provider"):
resolve_model_provider_registry([])
def test_mcp_provider_registry_empty() -> None:
"""Test MCPProviderRegistry can be created empty."""
registry = MCPProviderRegistry()
assert len(registry.providers) == 0
def test_mcp_provider_registry_with_providers() -> None:
"""Test MCPProviderRegistry with providers."""
provider = LocalStdioMCPProvider(name="test-provider", command="test-cmd")
registry = MCPProviderRegistry(providers=[provider])
assert len(registry.providers) == 1
assert registry.get_provider("test-provider") == provider
def test_mcp_provider_registry_duplicate_names() -> None:
"""Test MCPProviderRegistry raises error for duplicate provider names."""
provider1 = LocalStdioMCPProvider(name="test-provider", command="test-cmd")
provider2 = LocalStdioMCPProvider(name="test-provider", command="test-cmd-2")
with pytest.raises(ValueError, match="duplicate"):
MCPProviderRegistry(providers=[provider1, provider2])
def test_mcp_provider_registry_unknown_provider() -> None:
"""Test MCPProviderRegistry raises error for unknown provider."""
registry = MCPProviderRegistry()
with pytest.raises(UnknownProviderError, match="registered"):
registry.get_provider("unknown-provider")
def test_mcp_provider_registry_is_empty() -> None:
"""Test MCPProviderRegistry is_empty method."""
empty_registry = MCPProviderRegistry()
assert empty_registry.is_empty() is True
provider = LocalStdioMCPProvider(name="test-provider", command="test-cmd")
registry_with_providers = MCPProviderRegistry(providers=[provider])
assert registry_with_providers.is_empty() is False