feat: server multi models support (#799)

api/tests/unit_tests/model_providers/test_anthropic_provider.py

@@ -0,0 +1,123 @@
+from typing import List, Optional, Any
+
+import anthropic
+import httpx
+import pytest
+from unittest.mock import patch
+import json
+
+from langchain.callbacks.manager import CallbackManagerForLLMRun
+from langchain.schema import BaseMessage, ChatResult, ChatGeneration, AIMessage
+
+from core.model_providers.providers.anthropic_provider import AnthropicProvider
+from core.model_providers.providers.base import CredentialsValidateFailedError
+from models.provider import ProviderType, Provider
+
+
+PROVIDER_NAME = 'anthropic'
+MODEL_PROVIDER_CLASS = AnthropicProvider
+VALIDATE_CREDENTIAL_KEY = 'anthropic_api_key'
+
+
+def mock_chat_generate(messages: List[BaseMessage],
+                       stop: Optional[List[str]] = None,
+                       run_manager: Optional[CallbackManagerForLLMRun] = None,
+                       **kwargs: Any):
+    return ChatResult(generations=[ChatGeneration(message=AIMessage(content='answer'))])
+
+
+def mock_chat_generate_invalid(messages: List[BaseMessage],
+                               stop: Optional[List[str]] = None,
+                               run_manager: Optional[CallbackManagerForLLMRun] = None,
+                               **kwargs: Any):
+    raise anthropic.APIStatusError('Invalid credentials',
+                                   request=httpx._models.Request(
+                                       method='POST',
+                                       url='https://api.anthropic.com/v1/completions',
+                                   ),
+                                   response=httpx._models.Response(
+                                       status_code=401,
+                                   ),
+                                   body=None
+                                )
+
+
+def encrypt_side_effect(tenant_id, encrypt_key):
+    return f'encrypted_{encrypt_key}'
+
+
+def decrypt_side_effect(tenant_id, encrypted_key):
+    return encrypted_key.replace('encrypted_', '')
+
+
+@patch('langchain.chat_models.ChatAnthropic._generate', side_effect=mock_chat_generate)
+def test_is_provider_credentials_valid_or_raise_valid(mock_create):
+    MODEL_PROVIDER_CLASS.is_provider_credentials_valid_or_raise({VALIDATE_CREDENTIAL_KEY: 'valid_key'})
+
+
+@patch('langchain.chat_models.ChatAnthropic._generate', side_effect=mock_chat_generate_invalid)
+def test_is_provider_credentials_valid_or_raise_invalid(mock_create):
+    # raise CredentialsValidateFailedError if anthropic_api_key is not in credentials
+    with pytest.raises(CredentialsValidateFailedError):
+        MODEL_PROVIDER_CLASS.is_provider_credentials_valid_or_raise({})
+
+    # raise CredentialsValidateFailedError if anthropic_api_key is invalid
+    with pytest.raises(CredentialsValidateFailedError):
+        MODEL_PROVIDER_CLASS.is_provider_credentials_valid_or_raise({VALIDATE_CREDENTIAL_KEY: 'invalid_key'})
+
+
+@patch('core.helper.encrypter.encrypt_token', side_effect=encrypt_side_effect)
+def test_encrypt_credentials(mock_encrypt):
+    api_key = 'valid_key'
+    result = MODEL_PROVIDER_CLASS.encrypt_provider_credentials('tenant_id', {VALIDATE_CREDENTIAL_KEY: api_key})
+    mock_encrypt.assert_called_with('tenant_id', api_key)
+    assert result[VALIDATE_CREDENTIAL_KEY] == f'encrypted_{api_key}'
+
+
+@patch('core.helper.encrypter.decrypt_token', side_effect=decrypt_side_effect)
+def test_get_credentials_custom(mock_decrypt):
+    provider = Provider(
+        id='provider_id',
+        tenant_id='tenant_id',
+        provider_name=PROVIDER_NAME,
+        provider_type=ProviderType.CUSTOM.value,
+        encrypted_config=json.dumps({VALIDATE_CREDENTIAL_KEY: 'encrypted_valid_key'}),
+        is_valid=True,
+    )
+    model_provider = MODEL_PROVIDER_CLASS(provider=provider)
+    result = model_provider.get_provider_credentials()
+    assert result[VALIDATE_CREDENTIAL_KEY] == 'valid_key'
+
+
+@patch('core.helper.encrypter.decrypt_token', side_effect=decrypt_side_effect)
+def test_get_credentials_obfuscated(mock_decrypt):
+    api_key = 'valid_key'
+    provider = Provider(
+        id='provider_id',
+        tenant_id='tenant_id',
+        provider_name=PROVIDER_NAME,
+        provider_type=ProviderType.CUSTOM.value,
+        encrypted_config=json.dumps({VALIDATE_CREDENTIAL_KEY: f'encrypted_{api_key}'}),
+        is_valid=True,
+    )
+    model_provider = MODEL_PROVIDER_CLASS(provider=provider)
+    result = model_provider.get_provider_credentials(obfuscated=True)
+    middle_token = result[VALIDATE_CREDENTIAL_KEY][6:-2]
+    assert len(middle_token) == max(len(api_key) - 8, 0)
+    assert all(char == '*' for char in middle_token)
+
+
+@patch('core.model_providers.providers.hosted.hosted_model_providers.anthropic')
+def test_get_credentials_hosted(mock_hosted):
+    provider = Provider(
+        id='provider_id',
+        tenant_id='tenant_id',
+        provider_name=PROVIDER_NAME,
+        provider_type=ProviderType.SYSTEM.value,
+        encrypted_config='',
+        is_valid=True,
+    )
+    model_provider = MODEL_PROVIDER_CLASS(provider=provider)
+    mock_hosted.api_key = 'hosted_key'
+    result = model_provider.get_provider_credentials()
+    assert result[VALIDATE_CREDENTIAL_KEY] == 'hosted_key'