wehub-resource-sync
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255 lines
10 KiB
Python
255 lines
10 KiB
Python
# SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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# SPDX-License-Identifier: Apache-2.0
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Tests for the AnthropicProxyProvider (Vertex-style raw-predict endpoints)."""
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from __future__ import annotations
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import json
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import httpx
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import pytest
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from langchain_anthropic import ChatAnthropic
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from skillspector.providers import create_chat_model, get_metadata_provider, registry
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from skillspector.providers.anthropic_proxy import AnthropicProxyProvider
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from skillspector.providers.anthropic_proxy.provider import (
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DEFAULT_API_VERSION,
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_ChatAnthropicProxy,
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_get_api_version,
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_ProxyTransport,
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)
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@pytest.fixture(autouse=True)
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def _clean_env(monkeypatch: pytest.MonkeyPatch):
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"""Isolate provider-related env vars for each test."""
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monkeypatch.delenv("ANTHROPIC_PROXY_ENDPOINT_URL", raising=False)
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monkeypatch.delenv("ANTHROPIC_PROXY_API_KEY", raising=False)
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monkeypatch.delenv("ANTHROPIC_PROXY_API_VERSION", raising=False)
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monkeypatch.delenv("SKILLSPECTOR_MODEL", raising=False)
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monkeypatch.delenv("SKILLSPECTOR_PROVIDER", raising=False)
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monkeypatch.delenv("SKILLSPECTOR_SSL_VERIFY", raising=False)
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monkeypatch.delenv("OPENAI_API_KEY", raising=False)
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monkeypatch.delenv("ANTHROPIC_API_KEY", raising=False)
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monkeypatch.delenv("NVIDIA_INFERENCE_KEY", raising=False)
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registry._load.cache_clear()
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yield
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registry._load.cache_clear()
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class TestAnthropicProxyProviderCredentials:
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"""Credential resolution tests."""
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def test_returns_none_without_env_vars(self) -> None:
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assert AnthropicProxyProvider().resolve_credentials() is None
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def test_returns_none_with_only_key(self, monkeypatch: pytest.MonkeyPatch) -> None:
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monkeypatch.setenv("ANTHROPIC_PROXY_API_KEY", "token-123")
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assert AnthropicProxyProvider().resolve_credentials() is None
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def test_returns_none_with_only_url(self, monkeypatch: pytest.MonkeyPatch) -> None:
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monkeypatch.setenv("ANTHROPIC_PROXY_ENDPOINT_URL", "https://proxy.example.com/predict")
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assert AnthropicProxyProvider().resolve_credentials() is None
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def test_resolves_credentials_with_both_env_vars(self, monkeypatch: pytest.MonkeyPatch) -> None:
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monkeypatch.setenv("ANTHROPIC_PROXY_API_KEY", "bearer-tok")
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monkeypatch.setenv("ANTHROPIC_PROXY_ENDPOINT_URL", "https://proxy.example.com/predict")
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creds = AnthropicProxyProvider().resolve_credentials()
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assert creds == ("bearer-tok", "https://proxy.example.com/predict")
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class TestAnthropicProxyProviderChatModel:
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"""Chat model creation tests."""
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def test_create_chat_model_returns_none_without_creds(self) -> None:
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result = AnthropicProxyProvider().create_chat_model("claude-sonnet-4-6", max_tokens=1024)
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assert result is None
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def test_creates_chat_anthropic_subclass(self, monkeypatch: pytest.MonkeyPatch) -> None:
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monkeypatch.setenv("ANTHROPIC_PROXY_API_KEY", "bearer-tok")
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monkeypatch.setenv(
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"ANTHROPIC_PROXY_ENDPOINT_URL",
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"https://proxy.example.com/models/claude-sonnet-4-6:streamRawPredict",
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)
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llm = AnthropicProxyProvider().create_chat_model("claude-sonnet-4-6", max_tokens=4096)
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assert isinstance(llm, ChatAnthropic)
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assert isinstance(llm, _ChatAnthropicProxy)
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assert llm.model == "claude-sonnet-4-6"
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assert llm.max_tokens == 4096
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class TestAnthropicProxyProviderMetadata:
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"""Token-budget metadata and model resolution tests."""
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def test_metadata_known_model(self) -> None:
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provider = AnthropicProxyProvider()
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assert provider.get_context_length("claude-sonnet-4-6") == 1_000_000
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assert provider.get_max_output_tokens("claude-sonnet-4-6") == 128_000
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def test_metadata_unknown_model_returns_none(self) -> None:
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provider = AnthropicProxyProvider()
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assert provider.get_context_length("unknown-model") is None
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assert provider.get_max_output_tokens("unknown-model") is None
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def test_default_model(self) -> None:
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assert AnthropicProxyProvider().resolve_model() == "claude-sonnet-4-6"
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def test_resolve_model_env_override(self, monkeypatch: pytest.MonkeyPatch) -> None:
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monkeypatch.setenv("SKILLSPECTOR_MODEL", "claude-opus-4-6")
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assert AnthropicProxyProvider().resolve_model() == "claude-opus-4-6"
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assert AnthropicProxyProvider().resolve_model("meta_analyzer") == "claude-opus-4-6"
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class TestProxyTransport:
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"""Transport request-rewriting tests."""
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def _make_request(
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self, body: dict, *, monkeypatch: pytest.MonkeyPatch | None = None
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) -> tuple[httpx.Request, dict]:
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"""Create a transport and capture the rewritten request.
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Returns the rewritten httpx.Request and the decoded body.
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"""
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transport = _ProxyTransport(
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endpoint_url="https://proxy.example.com/models/claude:predict",
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bearer_token="my-token",
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verify=False,
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)
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original_request = httpx.Request(
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method="POST",
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url="https://api.anthropic.com/v1/messages",
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headers={
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"x-api-key": "sk-ant-secret",
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"anthropic-version": "2023-06-01",
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"content-type": "application/json",
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},
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content=json.dumps(body).encode("utf-8"),
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)
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captured: list[httpx.Request] = []
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class _CapturingTransport(httpx.BaseTransport):
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def handle_request(self, request: httpx.Request) -> httpx.Response:
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captured.append(request)
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return httpx.Response(
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status_code=200,
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json={
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"id": "msg_test",
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"type": "message",
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"role": "assistant",
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"content": [{"type": "text", "text": "hello"}],
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"model": "claude-sonnet-4-6",
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"stop_reason": "end_turn",
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"usage": {"input_tokens": 10, "output_tokens": 5},
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},
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)
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transport._inner = _CapturingTransport()
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transport.handle_request(original_request)
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assert len(captured) == 1
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rewritten = captured[0]
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rewritten_body = json.loads(rewritten.content)
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return rewritten, rewritten_body
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def test_rewrites_url(self) -> None:
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rewritten, _ = self._make_request(
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{"model": "claude-sonnet-4-6", "messages": [], "max_tokens": 100}
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)
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assert str(rewritten.url) == "https://proxy.example.com/models/claude:predict"
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def test_removes_model_from_body(self) -> None:
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_, body = self._make_request(
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{"model": "claude-sonnet-4-6", "messages": [], "max_tokens": 100}
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)
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assert "model" not in body
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def test_injects_anthropic_version(self) -> None:
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_, body = self._make_request(
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{"model": "claude-sonnet-4-6", "messages": [], "max_tokens": 100}
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)
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assert body["anthropic_version"] == DEFAULT_API_VERSION
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def test_replaces_auth_header(self) -> None:
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rewritten, _ = self._make_request(
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{"model": "claude-sonnet-4-6", "messages": [], "max_tokens": 100}
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)
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assert rewritten.headers["authorization"] == "Bearer my-token"
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assert "x-api-key" not in rewritten.headers
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assert "anthropic-version" not in rewritten.headers
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def test_preserves_content_type(self) -> None:
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rewritten, _ = self._make_request(
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{"model": "claude-sonnet-4-6", "messages": [], "max_tokens": 100}
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)
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assert rewritten.headers["content-type"] == "application/json"
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def test_preserves_other_body_fields(self) -> None:
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_, body = self._make_request(
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{
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"model": "claude-sonnet-4-6",
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"messages": [{"role": "user", "content": "hi"}],
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"max_tokens": 200,
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"temperature": 0.5,
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}
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)
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assert body["messages"] == [{"role": "user", "content": "hi"}]
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assert body["max_tokens"] == 200
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assert body["temperature"] == 0.5
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class TestApiVersionConfiguration:
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"""Tests for ANTHROPIC_PROXY_API_VERSION env var."""
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def test_default_api_version(self, monkeypatch: pytest.MonkeyPatch) -> None:
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monkeypatch.delenv("ANTHROPIC_PROXY_API_VERSION", raising=False)
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assert _get_api_version() == "vertex-2023-10-16"
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def test_custom_api_version(self, monkeypatch: pytest.MonkeyPatch) -> None:
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monkeypatch.setenv("ANTHROPIC_PROXY_API_VERSION", "bedrock-2023-05-31")
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assert _get_api_version() == "bedrock-2023-05-31"
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def test_empty_string_falls_back_to_default(self, monkeypatch: pytest.MonkeyPatch) -> None:
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monkeypatch.setenv("ANTHROPIC_PROXY_API_VERSION", " ")
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assert _get_api_version() == DEFAULT_API_VERSION
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class TestProviderSelection:
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"""Integration with the provider selector."""
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def test_select_anthropic_proxy(self, monkeypatch: pytest.MonkeyPatch) -> None:
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monkeypatch.setenv("SKILLSPECTOR_PROVIDER", "anthropic_proxy")
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assert isinstance(get_metadata_provider(), AnthropicProxyProvider)
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def test_create_chat_model_via_selector(self, monkeypatch: pytest.MonkeyPatch) -> None:
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monkeypatch.setenv("SKILLSPECTOR_PROVIDER", "anthropic_proxy")
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monkeypatch.setenv("ANTHROPIC_PROXY_API_KEY", "tok")
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monkeypatch.setenv("ANTHROPIC_PROXY_ENDPOINT_URL", "https://proxy.example.com/predict")
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llm = create_chat_model("claude-sonnet-4-6", max_tokens=1024)
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assert isinstance(llm, _ChatAnthropicProxy)
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def test_falls_back_to_openai_when_proxy_unconfigured(
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self, monkeypatch: pytest.MonkeyPatch
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) -> None:
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"""When anthropic_proxy is selected but not configured, falls back to OpenAI."""
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from langchain_openai import ChatOpenAI
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monkeypatch.setenv("SKILLSPECTOR_PROVIDER", "anthropic_proxy")
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monkeypatch.setenv("OPENAI_API_KEY", "sk-fallback")
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llm = create_chat_model("gpt-5.4", max_tokens=1024)
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assert isinstance(llm, ChatOpenAI)
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