feat: server multi models support (#799)

api/tests/integration_tests/models/llm/test_anthropic_model.py

@@ -0,0 +1,61 @@
+import json
+import os
+from unittest.mock import patch
+
+from langchain.schema import ChatGeneration, AIMessage
+
+from core.model_providers.models.entity.message import PromptMessage, MessageType
+from core.model_providers.models.entity.model_params import ModelKwargs
+from core.model_providers.models.llm.anthropic_model import AnthropicModel
+from core.model_providers.providers.anthropic_provider import AnthropicProvider
+from models.provider import Provider, ProviderType
+
+
+def get_mock_provider(valid_api_key):
+    return Provider(
+        id='provider_id',
+        tenant_id='tenant_id',
+        provider_name='anthropic',
+        provider_type=ProviderType.CUSTOM.value,
+        encrypted_config=json.dumps({'anthropic_api_key': valid_api_key}),
+        is_valid=True,
+    )
+
+
+def get_mock_model(model_name):
+    model_kwargs = ModelKwargs(
+        max_tokens=10,
+        temperature=0
+    )
+    valid_api_key = os.environ['ANTHROPIC_API_KEY']
+    model_provider = AnthropicProvider(provider=get_mock_provider(valid_api_key))
+    return AnthropicModel(
+        model_provider=model_provider,
+        name=model_name,
+        model_kwargs=model_kwargs
+    )
+
+
+def decrypt_side_effect(tenant_id, encrypted_api_key):
+    return encrypted_api_key
+
+
+@patch('core.helper.encrypter.decrypt_token', side_effect=decrypt_side_effect)
+def test_get_num_tokens(mock_decrypt):
+    model = get_mock_model('claude-2')
+    rst = model.get_num_tokens([
+        PromptMessage(type=MessageType.HUMAN, content='Who is your manufacturer?')
+    ])
+    assert rst == 6
+
+
+@patch('core.helper.encrypter.decrypt_token', side_effect=decrypt_side_effect)
+def test_run(mock_decrypt):
+    model = get_mock_model('claude-2')
+    messages = [PromptMessage(content='Human: 1 + 1=? \nAssistant: ')]
+    rst = model.run(
+        messages,
+        stop=['\nHuman:'],
+    )
+    assert len(rst.content) > 0
+    assert rst.content.strip() == '2'