1229 lines
41 KiB
Rust
1229 lines
41 KiB
Rust
// Integration test for Responses API
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use sglang_router_rs::protocols::spec::{
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GenerationRequest, ReasoningEffort, ResponseInput, ResponseReasoningParam, ResponseStatus,
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ResponseTool, ResponseToolType, ResponsesRequest, ResponsesResponse, ServiceTier, ToolChoice,
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ToolChoiceValue, Truncation, UsageInfo,
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};
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mod common;
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use common::mock_mcp_server::MockMCPServer;
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use common::mock_worker::{HealthStatus, MockWorker, MockWorkerConfig, WorkerType};
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use sglang_router_rs::config::{
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CircuitBreakerConfig, ConnectionMode, HealthCheckConfig, PolicyConfig, RetryConfig,
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RouterConfig, RoutingMode,
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};
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use sglang_router_rs::routers::RouterFactory;
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use sglang_router_rs::server::AppContext;
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use std::sync::Arc;
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#[tokio::test]
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async fn test_non_streaming_mcp_minimal_e2e_with_persistence() {
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// Start mock MCP server
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let mut mcp = MockMCPServer::start().await.expect("start mcp");
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// Write a temp MCP config file
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let mcp_yaml = format!(
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"servers:\n - name: mock\n protocol: streamable\n url: {}\n",
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mcp.url()
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);
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let dir = tempfile::tempdir().expect("tmpdir");
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let cfg_path = dir.path().join("mcp.yaml");
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std::fs::write(&cfg_path, mcp_yaml).expect("write mcp cfg");
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// Start mock OpenAI worker
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let mut worker = MockWorker::new(MockWorkerConfig {
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port: 0,
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worker_type: WorkerType::Regular,
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health_status: HealthStatus::Healthy,
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response_delay_ms: 0,
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fail_rate: 0.0,
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});
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let worker_url = worker.start().await.expect("start worker");
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// Build router config (HTTP OpenAI mode)
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let router_cfg = RouterConfig {
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mode: RoutingMode::OpenAI {
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worker_urls: vec![worker_url],
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},
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connection_mode: ConnectionMode::Http,
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policy: PolicyConfig::Random,
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host: "127.0.0.1".to_string(),
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port: 0,
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max_payload_size: 8 * 1024 * 1024,
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request_timeout_secs: 60,
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worker_startup_timeout_secs: 5,
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worker_startup_check_interval_secs: 1,
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dp_aware: false,
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api_key: None,
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discovery: None,
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metrics: None,
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log_dir: None,
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log_level: Some("warn".to_string()),
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request_id_headers: None,
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max_concurrent_requests: 32,
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queue_size: 0,
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queue_timeout_secs: 5,
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rate_limit_tokens_per_second: None,
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cors_allowed_origins: vec![],
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retry: RetryConfig::default(),
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circuit_breaker: CircuitBreakerConfig::default(),
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disable_retries: false,
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disable_circuit_breaker: false,
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health_check: HealthCheckConfig::default(),
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enable_igw: false,
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model_path: None,
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tokenizer_path: None,
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history_backend: sglang_router_rs::config::HistoryBackend::Memory,
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oracle: None,
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};
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// Create router and context
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let ctx = AppContext::new(router_cfg, reqwest::Client::new(), 64, None).expect("ctx");
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let router = RouterFactory::create_router(&Arc::new(ctx))
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.await
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.expect("router");
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// Build a simple ResponsesRequest that will trigger the tool call
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let req = ResponsesRequest {
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background: false,
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include: None,
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input: ResponseInput::Text("search something".to_string()),
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instructions: Some("Be brief".to_string()),
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max_output_tokens: Some(64),
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max_tool_calls: None,
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metadata: None,
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model: Some("mock-model".to_string()),
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parallel_tool_calls: true,
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previous_response_id: None,
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reasoning: None,
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service_tier: sglang_router_rs::protocols::spec::ServiceTier::Auto,
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store: true,
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stream: false,
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temperature: Some(0.2),
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tool_choice: sglang_router_rs::protocols::spec::ToolChoice::default(),
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tools: vec![ResponseTool {
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r#type: ResponseToolType::Mcp,
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server_url: Some(mcp.url()),
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authorization: None,
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server_label: Some("mock".to_string()),
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server_description: None,
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require_approval: None,
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allowed_tools: None,
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}],
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top_logprobs: 0,
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top_p: None,
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truncation: sglang_router_rs::protocols::spec::Truncation::Disabled,
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user: None,
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request_id: "resp_test_mcp_e2e".to_string(),
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priority: 0,
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frequency_penalty: 0.0,
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presence_penalty: 0.0,
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stop: None,
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top_k: -1,
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min_p: 0.0,
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repetition_penalty: 1.0,
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};
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let resp = router
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.route_responses(None, &req, req.model.as_deref())
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.await;
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assert_eq!(resp.status(), axum::http::StatusCode::OK);
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let body_bytes = axum::body::to_bytes(resp.into_body(), usize::MAX)
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.await
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.expect("Failed to read response body");
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let body_json: serde_json::Value =
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serde_json::from_slice(&body_bytes).expect("Failed to parse response JSON");
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let output = body_json
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.get("output")
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.and_then(|v| v.as_array())
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.expect("response output missing");
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assert!(!output.is_empty(), "expected at least one output item");
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// Verify mcp_list_tools item is present
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let list_tools_item = output
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.iter()
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.find(|entry| {
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entry.get("type") == Some(&serde_json::Value::String("mcp_list_tools".into()))
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})
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.expect("missing mcp_list_tools output item");
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assert_eq!(
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list_tools_item.get("server_label").and_then(|v| v.as_str()),
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Some("mock"),
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"server_label should match"
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);
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let tools_list = list_tools_item
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.get("tools")
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.and_then(|v| v.as_array())
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.expect("tools array missing in mcp_list_tools");
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assert!(
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!tools_list.is_empty(),
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"mcp_list_tools should contain at least one tool"
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);
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// Verify mcp_call item is present
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let mcp_call_item = output
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.iter()
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.find(|entry| entry.get("type") == Some(&serde_json::Value::String("mcp_call".into())))
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.expect("missing mcp_call output item");
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assert_eq!(
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mcp_call_item.get("status").and_then(|v| v.as_str()),
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Some("completed"),
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"mcp_call status should be completed"
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);
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assert_eq!(
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mcp_call_item.get("server_label").and_then(|v| v.as_str()),
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Some("mock"),
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"server_label should match"
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);
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assert!(
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mcp_call_item.get("name").is_some(),
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"mcp_call should have a tool name"
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);
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assert!(
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mcp_call_item.get("arguments").is_some(),
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"mcp_call should have arguments"
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);
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assert!(
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mcp_call_item.get("output").is_some(),
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"mcp_call should have output"
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);
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let final_text = output
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.iter()
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.rev()
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.filter_map(|entry| entry.get("content"))
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.filter_map(|content| content.as_array())
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.flat_map(|parts| parts.iter())
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.filter_map(|part| part.get("text"))
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.filter_map(|v| v.as_str())
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.next();
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if let Some(text) = final_text {
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assert_eq!(text, "Tool result consumed; here is the final answer.");
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} else {
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let call_entry = output.iter().find(|entry| {
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entry.get("type") == Some(&serde_json::Value::String("function_tool_call".into()))
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});
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assert!(call_entry.is_some(), "missing function tool call entry");
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if let Some(entry) = call_entry {
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assert_eq!(
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entry.get("status").and_then(|v| v.as_str()),
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Some("in_progress"),
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"function call should be in progress when no content is returned"
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);
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}
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}
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let tools = body_json
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.get("tools")
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.and_then(|v| v.as_array())
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.expect("tools array missing");
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assert_eq!(tools.len(), 1);
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let tool = tools.first().unwrap();
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assert_eq!(tool.get("type").and_then(|v| v.as_str()), Some("mcp"));
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assert_eq!(
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tool.get("server_label").and_then(|v| v.as_str()),
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Some("mock")
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);
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// Cleanup
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worker.stop().await;
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mcp.stop().await;
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}
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#[test]
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fn test_responses_request_creation() {
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let request = ResponsesRequest {
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background: false,
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include: None,
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input: ResponseInput::Text("Hello, world!".to_string()),
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instructions: Some("Be helpful".to_string()),
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max_output_tokens: Some(100),
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max_tool_calls: None,
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metadata: None,
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model: Some("test-model".to_string()),
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parallel_tool_calls: true,
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previous_response_id: None,
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reasoning: Some(ResponseReasoningParam {
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effort: Some(ReasoningEffort::Medium),
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summary: None,
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}),
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service_tier: ServiceTier::Auto,
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store: true,
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stream: false,
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temperature: Some(0.7),
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tool_choice: ToolChoice::Value(ToolChoiceValue::Auto),
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tools: vec![ResponseTool {
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r#type: ResponseToolType::WebSearchPreview,
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..Default::default()
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}],
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top_logprobs: 5,
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top_p: Some(0.9),
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truncation: Truncation::Disabled,
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user: Some("test-user".to_string()),
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request_id: "resp_test123".to_string(),
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priority: 0,
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frequency_penalty: 0.0,
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presence_penalty: 0.0,
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stop: None,
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top_k: -1,
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min_p: 0.0,
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repetition_penalty: 1.0,
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};
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assert!(!request.is_stream());
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assert_eq!(request.get_model(), Some("test-model"));
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let routing_text = request.extract_text_for_routing();
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assert_eq!(routing_text, "Hello, world!");
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}
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#[test]
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fn test_sampling_params_conversion() {
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let request = ResponsesRequest {
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background: false,
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include: None,
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input: ResponseInput::Text("Test".to_string()),
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instructions: None,
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max_output_tokens: Some(50),
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max_tool_calls: None,
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metadata: None,
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model: Some("test-model".to_string()),
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parallel_tool_calls: true, // Use default true
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previous_response_id: None,
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reasoning: None,
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service_tier: ServiceTier::Auto,
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store: true, // Use default true
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stream: false,
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temperature: Some(0.8),
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tool_choice: ToolChoice::Value(ToolChoiceValue::Auto),
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tools: vec![],
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top_logprobs: 0, // Use default 0
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top_p: Some(0.95),
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truncation: Truncation::Auto,
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user: None,
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request_id: "resp_test456".to_string(),
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priority: 0,
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frequency_penalty: 0.1,
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presence_penalty: 0.2,
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stop: None,
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top_k: 10,
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min_p: 0.05,
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repetition_penalty: 1.1,
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};
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let params = request.to_sampling_params(1000, None);
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// Check that parameters are converted correctly
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assert!(params.contains_key("temperature"));
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assert!(params.contains_key("top_p"));
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assert!(params.contains_key("frequency_penalty"));
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assert!(params.contains_key("max_new_tokens"));
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}
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#[test]
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fn test_responses_response_creation() {
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let response = ResponsesResponse::new(
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"resp_test789".to_string(),
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"test-model".to_string(),
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ResponseStatus::Completed,
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);
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assert_eq!(response.id, "resp_test789");
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assert_eq!(response.model, "test-model");
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assert!(response.is_complete());
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assert!(!response.is_in_progress());
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assert!(!response.is_failed());
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}
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#[test]
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fn test_usage_conversion() {
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let usage_info = UsageInfo::new_with_cached(15, 25, Some(8), 3);
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let response_usage = usage_info.to_response_usage();
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assert_eq!(response_usage.input_tokens, 15);
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assert_eq!(response_usage.output_tokens, 25);
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assert_eq!(response_usage.total_tokens, 40);
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// Check details are converted correctly
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assert!(response_usage.input_tokens_details.is_some());
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assert_eq!(
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response_usage
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.input_tokens_details
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.as_ref()
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.unwrap()
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.cached_tokens,
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3
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);
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assert!(response_usage.output_tokens_details.is_some());
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assert_eq!(
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response_usage
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.output_tokens_details
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.as_ref()
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.unwrap()
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.reasoning_tokens,
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8
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);
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let back_to_usage = response_usage.to_usage_info();
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assert_eq!(back_to_usage.prompt_tokens, 15);
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assert_eq!(back_to_usage.completion_tokens, 25);
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assert_eq!(back_to_usage.reasoning_tokens, Some(8));
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}
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#[test]
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fn test_reasoning_param_default() {
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let param = ResponseReasoningParam {
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effort: Some(ReasoningEffort::Medium),
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summary: None,
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};
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let json = serde_json::to_string(¶m).unwrap();
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let parsed: ResponseReasoningParam = serde_json::from_str(&json).unwrap();
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assert!(matches!(parsed.effort, Some(ReasoningEffort::Medium)));
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}
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#[test]
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fn test_json_serialization() {
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let request = ResponsesRequest {
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background: true,
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include: None,
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input: ResponseInput::Text("Test input".to_string()),
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instructions: Some("Test instructions".to_string()),
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max_output_tokens: Some(200),
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max_tool_calls: Some(5),
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metadata: None,
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model: Some("gpt-4".to_string()),
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parallel_tool_calls: false,
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previous_response_id: None,
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reasoning: Some(ResponseReasoningParam {
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effort: Some(ReasoningEffort::High),
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summary: None,
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}),
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service_tier: ServiceTier::Priority,
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store: false,
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stream: true,
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temperature: Some(0.9),
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tool_choice: ToolChoice::Value(ToolChoiceValue::Required),
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tools: vec![ResponseTool {
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r#type: ResponseToolType::CodeInterpreter,
|
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..Default::default()
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}],
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top_logprobs: 10,
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top_p: Some(0.8),
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truncation: Truncation::Auto,
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user: Some("test_user".to_string()),
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request_id: "resp_comprehensive_test".to_string(),
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priority: 1,
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frequency_penalty: 0.3,
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presence_penalty: 0.4,
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stop: None,
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top_k: 50,
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min_p: 0.1,
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repetition_penalty: 1.2,
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};
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let json = serde_json::to_string(&request).expect("Serialization should work");
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let parsed: ResponsesRequest =
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serde_json::from_str(&json).expect("Deserialization should work");
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assert_eq!(parsed.request_id, "resp_comprehensive_test");
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assert_eq!(parsed.model, Some("gpt-4".to_string()));
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assert!(parsed.background);
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assert!(parsed.stream);
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assert_eq!(parsed.tools.len(), 1);
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}
|
|
|
|
#[tokio::test]
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async fn test_multi_turn_loop_with_mcp() {
|
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// This test verifies the multi-turn loop functionality:
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// 1. Initial request with MCP tools
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// 2. Mock worker returns function_call
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// 3. Router executes MCP tool and resumes
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// 4. Mock worker returns final answer
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// 5. Verify the complete flow worked
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|
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// Start mock MCP server
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let mut mcp = MockMCPServer::start().await.expect("start mcp");
|
|
|
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// Write a temp MCP config file
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let mcp_yaml = format!(
|
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"servers:\n - name: mock\n protocol: streamable\n url: {}\n",
|
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mcp.url()
|
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);
|
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let dir = tempfile::tempdir().expect("tmpdir");
|
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let cfg_path = dir.path().join("mcp.yaml");
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std::fs::write(&cfg_path, mcp_yaml).expect("write mcp cfg");
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std::env::set_var("SGLANG_MCP_CONFIG", cfg_path.to_str().unwrap());
|
|
|
|
// Start mock OpenAI worker
|
|
let mut worker = MockWorker::new(MockWorkerConfig {
|
|
port: 0,
|
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worker_type: WorkerType::Regular,
|
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health_status: HealthStatus::Healthy,
|
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response_delay_ms: 0,
|
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fail_rate: 0.0,
|
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});
|
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let worker_url = worker.start().await.expect("start worker");
|
|
|
|
// Build router config
|
|
let router_cfg = RouterConfig {
|
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mode: RoutingMode::OpenAI {
|
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worker_urls: vec![worker_url],
|
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},
|
|
connection_mode: ConnectionMode::Http,
|
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policy: PolicyConfig::Random,
|
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host: "127.0.0.1".to_string(),
|
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port: 0,
|
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max_payload_size: 8 * 1024 * 1024,
|
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request_timeout_secs: 60,
|
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worker_startup_timeout_secs: 5,
|
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worker_startup_check_interval_secs: 1,
|
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dp_aware: false,
|
|
api_key: None,
|
|
discovery: None,
|
|
metrics: None,
|
|
log_dir: None,
|
|
log_level: Some("info".to_string()),
|
|
request_id_headers: None,
|
|
max_concurrent_requests: 32,
|
|
queue_size: 0,
|
|
queue_timeout_secs: 5,
|
|
rate_limit_tokens_per_second: None,
|
|
cors_allowed_origins: vec![],
|
|
retry: RetryConfig::default(),
|
|
circuit_breaker: CircuitBreakerConfig::default(),
|
|
disable_retries: false,
|
|
disable_circuit_breaker: false,
|
|
health_check: HealthCheckConfig::default(),
|
|
enable_igw: false,
|
|
model_path: None,
|
|
tokenizer_path: None,
|
|
history_backend: sglang_router_rs::config::HistoryBackend::Memory,
|
|
oracle: None,
|
|
};
|
|
|
|
let ctx = AppContext::new(router_cfg, reqwest::Client::new(), 64, None).expect("ctx");
|
|
let router = RouterFactory::create_router(&Arc::new(ctx))
|
|
.await
|
|
.expect("router");
|
|
|
|
// Build request with MCP tools
|
|
let req = ResponsesRequest {
|
|
background: false,
|
|
include: None,
|
|
input: ResponseInput::Text("search for SGLang".to_string()),
|
|
instructions: Some("Be helpful".to_string()),
|
|
max_output_tokens: Some(128),
|
|
max_tool_calls: None, // No limit - test unlimited
|
|
metadata: None,
|
|
model: Some("mock-model".to_string()),
|
|
parallel_tool_calls: true,
|
|
previous_response_id: None,
|
|
reasoning: None,
|
|
service_tier: ServiceTier::Auto,
|
|
store: true,
|
|
stream: false,
|
|
temperature: Some(0.7),
|
|
tool_choice: ToolChoice::Value(ToolChoiceValue::Auto),
|
|
tools: vec![ResponseTool {
|
|
r#type: ResponseToolType::Mcp,
|
|
server_url: Some(mcp.url()),
|
|
server_label: Some("mock".to_string()),
|
|
server_description: Some("Mock MCP server for testing".to_string()),
|
|
require_approval: Some("never".to_string()),
|
|
..Default::default()
|
|
}],
|
|
top_logprobs: 0,
|
|
top_p: Some(1.0),
|
|
truncation: Truncation::Disabled,
|
|
user: None,
|
|
request_id: "resp_multi_turn_test".to_string(),
|
|
priority: 0,
|
|
frequency_penalty: 0.0,
|
|
presence_penalty: 0.0,
|
|
stop: None,
|
|
top_k: 50,
|
|
min_p: 0.0,
|
|
repetition_penalty: 1.0,
|
|
};
|
|
|
|
// Execute the request (this should trigger the multi-turn loop)
|
|
let response = router.route_responses(None, &req, None).await;
|
|
|
|
// Check status
|
|
assert_eq!(
|
|
response.status(),
|
|
axum::http::StatusCode::OK,
|
|
"Request should succeed"
|
|
);
|
|
|
|
// Read the response body
|
|
use axum::body::to_bytes;
|
|
let response_body = response.into_body();
|
|
let body_bytes = to_bytes(response_body, usize::MAX).await.unwrap();
|
|
let response_json: serde_json::Value = serde_json::from_slice(&body_bytes).unwrap();
|
|
|
|
println!(
|
|
"Multi-turn response: {}",
|
|
serde_json::to_string_pretty(&response_json).unwrap()
|
|
);
|
|
|
|
// Verify the response structure
|
|
assert_eq!(response_json["object"], "response");
|
|
assert_eq!(response_json["status"], "completed");
|
|
// Note: mock worker generates its own ID, so we just verify it exists
|
|
assert!(
|
|
response_json["id"].is_string(),
|
|
"Response should have an id"
|
|
);
|
|
|
|
// Check that output contains final message
|
|
let output = response_json["output"]
|
|
.as_array()
|
|
.expect("output should be array");
|
|
assert!(!output.is_empty(), "output should not be empty");
|
|
|
|
// Find the final message with text
|
|
let has_final_text = output.iter().any(|item| {
|
|
item.get("type")
|
|
.and_then(|t| t.as_str())
|
|
.map(|t| t == "message")
|
|
.unwrap_or(false)
|
|
&& item
|
|
.get("content")
|
|
.and_then(|c| c.as_array())
|
|
.map(|arr| {
|
|
arr.iter().any(|part| {
|
|
part.get("type")
|
|
.and_then(|t| t.as_str())
|
|
.map(|t| t == "output_text")
|
|
.unwrap_or(false)
|
|
})
|
|
})
|
|
.unwrap_or(false)
|
|
});
|
|
|
|
assert!(has_final_text, "Should have final text output");
|
|
|
|
// Verify tools are masked back to MCP format
|
|
let tools = response_json["tools"]
|
|
.as_array()
|
|
.expect("tools should be array");
|
|
assert_eq!(tools.len(), 1);
|
|
assert_eq!(tools[0]["type"], "mcp");
|
|
assert_eq!(tools[0]["server_label"], "mock");
|
|
|
|
// Clean up
|
|
std::env::remove_var("SGLANG_MCP_CONFIG");
|
|
worker.stop().await;
|
|
mcp.stop().await;
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn test_max_tool_calls_limit() {
|
|
// This test verifies that max_tool_calls is respected
|
|
// Note: The mock worker returns a final answer after one tool call,
|
|
// so with max_tool_calls=1, it completes normally (doesn't exceed the limit)
|
|
|
|
let mut mcp = MockMCPServer::start().await.expect("start mcp");
|
|
let mcp_yaml = format!(
|
|
"servers:\n - name: mock\n protocol: streamable\n url: {}\n",
|
|
mcp.url()
|
|
);
|
|
let dir = tempfile::tempdir().expect("tmpdir");
|
|
let cfg_path = dir.path().join("mcp.yaml");
|
|
std::fs::write(&cfg_path, mcp_yaml).expect("write mcp cfg");
|
|
std::env::set_var("SGLANG_MCP_CONFIG", cfg_path.to_str().unwrap());
|
|
|
|
let mut worker = MockWorker::new(MockWorkerConfig {
|
|
port: 0,
|
|
worker_type: WorkerType::Regular,
|
|
health_status: HealthStatus::Healthy,
|
|
response_delay_ms: 0,
|
|
fail_rate: 0.0,
|
|
});
|
|
let worker_url = worker.start().await.expect("start worker");
|
|
|
|
let router_cfg = RouterConfig {
|
|
mode: RoutingMode::OpenAI {
|
|
worker_urls: vec![worker_url],
|
|
},
|
|
connection_mode: ConnectionMode::Http,
|
|
policy: PolicyConfig::Random,
|
|
host: "127.0.0.1".to_string(),
|
|
port: 0,
|
|
max_payload_size: 8 * 1024 * 1024,
|
|
request_timeout_secs: 60,
|
|
worker_startup_timeout_secs: 5,
|
|
worker_startup_check_interval_secs: 1,
|
|
dp_aware: false,
|
|
api_key: None,
|
|
discovery: None,
|
|
metrics: None,
|
|
log_dir: None,
|
|
log_level: Some("info".to_string()),
|
|
request_id_headers: None,
|
|
max_concurrent_requests: 32,
|
|
queue_size: 0,
|
|
queue_timeout_secs: 5,
|
|
rate_limit_tokens_per_second: None,
|
|
cors_allowed_origins: vec![],
|
|
retry: RetryConfig::default(),
|
|
circuit_breaker: CircuitBreakerConfig::default(),
|
|
disable_retries: false,
|
|
disable_circuit_breaker: false,
|
|
health_check: HealthCheckConfig::default(),
|
|
enable_igw: false,
|
|
model_path: None,
|
|
tokenizer_path: None,
|
|
history_backend: sglang_router_rs::config::HistoryBackend::Memory,
|
|
oracle: None,
|
|
};
|
|
|
|
let ctx = AppContext::new(router_cfg, reqwest::Client::new(), 64, None).expect("ctx");
|
|
let router = RouterFactory::create_router(&Arc::new(ctx))
|
|
.await
|
|
.expect("router");
|
|
|
|
let req = ResponsesRequest {
|
|
background: false,
|
|
include: None,
|
|
input: ResponseInput::Text("test max calls".to_string()),
|
|
instructions: None,
|
|
max_output_tokens: Some(128),
|
|
max_tool_calls: Some(1), // Limit to 1 call
|
|
metadata: None,
|
|
model: Some("mock-model".to_string()),
|
|
parallel_tool_calls: true,
|
|
previous_response_id: None,
|
|
reasoning: None,
|
|
service_tier: ServiceTier::Auto,
|
|
store: false,
|
|
stream: false,
|
|
temperature: Some(0.7),
|
|
tool_choice: ToolChoice::Value(ToolChoiceValue::Auto),
|
|
tools: vec![ResponseTool {
|
|
r#type: ResponseToolType::Mcp,
|
|
server_url: Some(mcp.url()),
|
|
server_label: Some("mock".to_string()),
|
|
..Default::default()
|
|
}],
|
|
top_logprobs: 0,
|
|
top_p: Some(1.0),
|
|
truncation: Truncation::Disabled,
|
|
user: None,
|
|
request_id: "resp_max_calls_test".to_string(),
|
|
priority: 0,
|
|
frequency_penalty: 0.0,
|
|
presence_penalty: 0.0,
|
|
stop: None,
|
|
top_k: 50,
|
|
min_p: 0.0,
|
|
repetition_penalty: 1.0,
|
|
};
|
|
|
|
let response = router.route_responses(None, &req, None).await;
|
|
assert_eq!(response.status(), axum::http::StatusCode::OK);
|
|
|
|
use axum::body::to_bytes;
|
|
let response_body = response.into_body();
|
|
let body_bytes = to_bytes(response_body, usize::MAX).await.unwrap();
|
|
let response_json: serde_json::Value = serde_json::from_slice(&body_bytes).unwrap();
|
|
|
|
println!(
|
|
"Max calls response: {}",
|
|
serde_json::to_string_pretty(&response_json).unwrap()
|
|
);
|
|
|
|
// With max_tool_calls=1, the mock returns a final answer after 1 call
|
|
// So it completes normally without exceeding the limit
|
|
assert_eq!(response_json["status"], "completed");
|
|
|
|
// Verify the basic response structure
|
|
assert!(response_json["id"].is_string());
|
|
assert_eq!(response_json["object"], "response");
|
|
|
|
// The response should have tools masked back to MCP format
|
|
let tools = response_json["tools"]
|
|
.as_array()
|
|
.expect("tools should be array");
|
|
assert_eq!(tools.len(), 1);
|
|
assert_eq!(tools[0]["type"], "mcp");
|
|
|
|
// Note: To test actual limit exceeding, we would need a mock that keeps
|
|
// calling tools indefinitely, which would hit max_iterations (safety limit)
|
|
|
|
std::env::remove_var("SGLANG_MCP_CONFIG");
|
|
worker.stop().await;
|
|
mcp.stop().await;
|
|
}
|
|
|
|
/// Helper function to set up common test infrastructure for streaming MCP tests
|
|
/// Returns (mcp_server, worker, router, temp_dir)
|
|
async fn setup_streaming_mcp_test() -> (
|
|
MockMCPServer,
|
|
MockWorker,
|
|
Box<dyn sglang_router_rs::routers::RouterTrait>,
|
|
tempfile::TempDir,
|
|
) {
|
|
let mcp = MockMCPServer::start().await.expect("start mcp");
|
|
let mcp_yaml = format!(
|
|
"servers:\n - name: mock\n protocol: streamable\n url: {}\n",
|
|
mcp.url()
|
|
);
|
|
let dir = tempfile::tempdir().expect("tmpdir");
|
|
let cfg_path = dir.path().join("mcp.yaml");
|
|
std::fs::write(&cfg_path, mcp_yaml).expect("write mcp cfg");
|
|
|
|
let mut worker = MockWorker::new(MockWorkerConfig {
|
|
port: 0,
|
|
worker_type: WorkerType::Regular,
|
|
health_status: HealthStatus::Healthy,
|
|
response_delay_ms: 0,
|
|
fail_rate: 0.0,
|
|
});
|
|
let worker_url = worker.start().await.expect("start worker");
|
|
|
|
let router_cfg = RouterConfig {
|
|
mode: RoutingMode::OpenAI {
|
|
worker_urls: vec![worker_url],
|
|
},
|
|
connection_mode: ConnectionMode::Http,
|
|
policy: PolicyConfig::Random,
|
|
host: "127.0.0.1".to_string(),
|
|
port: 0,
|
|
max_payload_size: 8 * 1024 * 1024,
|
|
request_timeout_secs: 60,
|
|
worker_startup_timeout_secs: 5,
|
|
worker_startup_check_interval_secs: 1,
|
|
dp_aware: false,
|
|
api_key: None,
|
|
discovery: None,
|
|
metrics: None,
|
|
log_dir: None,
|
|
log_level: Some("info".to_string()),
|
|
request_id_headers: None,
|
|
max_concurrent_requests: 32,
|
|
queue_size: 0,
|
|
queue_timeout_secs: 5,
|
|
rate_limit_tokens_per_second: None,
|
|
cors_allowed_origins: vec![],
|
|
retry: RetryConfig::default(),
|
|
circuit_breaker: CircuitBreakerConfig::default(),
|
|
disable_retries: false,
|
|
disable_circuit_breaker: false,
|
|
health_check: HealthCheckConfig::default(),
|
|
enable_igw: false,
|
|
model_path: None,
|
|
tokenizer_path: None,
|
|
history_backend: sglang_router_rs::config::HistoryBackend::Memory,
|
|
oracle: None,
|
|
};
|
|
|
|
let ctx = AppContext::new(router_cfg, reqwest::Client::new(), 64, None).expect("ctx");
|
|
let router = RouterFactory::create_router(&Arc::new(ctx))
|
|
.await
|
|
.expect("router");
|
|
|
|
(mcp, worker, router, dir)
|
|
}
|
|
|
|
/// Parse SSE (Server-Sent Events) stream into structured events
|
|
fn parse_sse_events(body: &str) -> Vec<(Option<String>, serde_json::Value)> {
|
|
let mut events = Vec::new();
|
|
let blocks: Vec<&str> = body
|
|
.split("\n\n")
|
|
.filter(|s| !s.trim().is_empty())
|
|
.collect();
|
|
|
|
for block in blocks {
|
|
let mut event_name: Option<String> = None;
|
|
let mut data_lines: Vec<String> = Vec::new();
|
|
|
|
for line in block.lines() {
|
|
if let Some(rest) = line.strip_prefix("event:") {
|
|
event_name = Some(rest.trim().to_string());
|
|
} else if let Some(rest) = line.strip_prefix("data:") {
|
|
let data = rest.trim_start();
|
|
// Skip [DONE] marker
|
|
if data != "[DONE]" {
|
|
data_lines.push(data.to_string());
|
|
}
|
|
}
|
|
}
|
|
|
|
if !data_lines.is_empty() {
|
|
let data = data_lines.join("\n");
|
|
if let Ok(parsed) = serde_json::from_str::<serde_json::Value>(&data) {
|
|
events.push((event_name, parsed));
|
|
}
|
|
}
|
|
}
|
|
|
|
events
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn test_streaming_with_mcp_tool_calls() {
|
|
// This test verifies that streaming works with MCP tool calls:
|
|
// 1. Initial streaming request with MCP tools
|
|
// 2. Mock worker streams text, then function_call deltas
|
|
// 3. Router buffers function call, executes MCP tool
|
|
// 4. Router resumes streaming with tool results
|
|
// 5. Mock worker streams final answer
|
|
// 6. Verify SSE events are properly formatted
|
|
|
|
let (mut mcp, mut worker, router, _dir) = setup_streaming_mcp_test().await;
|
|
|
|
// Build streaming request with MCP tools
|
|
let req = ResponsesRequest {
|
|
background: false,
|
|
include: None,
|
|
input: ResponseInput::Text("search for something interesting".to_string()),
|
|
instructions: Some("Use tools when needed".to_string()),
|
|
max_output_tokens: Some(256),
|
|
max_tool_calls: Some(3),
|
|
metadata: None,
|
|
model: Some("mock-model".to_string()),
|
|
parallel_tool_calls: true,
|
|
previous_response_id: None,
|
|
reasoning: None,
|
|
service_tier: ServiceTier::Auto,
|
|
store: true,
|
|
stream: true, // KEY: Enable streaming
|
|
temperature: Some(0.7),
|
|
tool_choice: ToolChoice::Value(ToolChoiceValue::Auto),
|
|
tools: vec![ResponseTool {
|
|
r#type: ResponseToolType::Mcp,
|
|
server_url: Some(mcp.url()),
|
|
server_label: Some("mock".to_string()),
|
|
server_description: Some("Mock MCP for streaming test".to_string()),
|
|
require_approval: Some("never".to_string()),
|
|
..Default::default()
|
|
}],
|
|
top_logprobs: 0,
|
|
top_p: Some(1.0),
|
|
truncation: Truncation::Disabled,
|
|
user: None,
|
|
request_id: "resp_streaming_mcp_test".to_string(),
|
|
priority: 0,
|
|
frequency_penalty: 0.0,
|
|
presence_penalty: 0.0,
|
|
stop: None,
|
|
top_k: 50,
|
|
min_p: 0.0,
|
|
repetition_penalty: 1.0,
|
|
};
|
|
|
|
let response = router.route_responses(None, &req, None).await;
|
|
|
|
// Verify streaming response
|
|
assert_eq!(
|
|
response.status(),
|
|
axum::http::StatusCode::OK,
|
|
"Streaming request should succeed"
|
|
);
|
|
|
|
// Check Content-Type is text/event-stream
|
|
let content_type = response
|
|
.headers()
|
|
.get("content-type")
|
|
.and_then(|v| v.to_str().ok());
|
|
assert_eq!(
|
|
content_type,
|
|
Some("text/event-stream"),
|
|
"Should have SSE content type"
|
|
);
|
|
|
|
// Read the streaming body
|
|
use axum::body::to_bytes;
|
|
let response_body = response.into_body();
|
|
let body_bytes = to_bytes(response_body, usize::MAX).await.unwrap();
|
|
let body_text = String::from_utf8_lossy(&body_bytes);
|
|
|
|
println!("Streaming SSE response:\n{}", body_text);
|
|
|
|
// Parse all SSE events into structured format
|
|
let events = parse_sse_events(&body_text);
|
|
|
|
assert!(!events.is_empty(), "Should have at least one SSE event");
|
|
println!("Total parsed SSE events: {}", events.len());
|
|
|
|
// Check for [DONE] marker
|
|
let has_done_marker = body_text.contains("data: [DONE]");
|
|
assert!(has_done_marker, "Stream should end with [DONE] marker");
|
|
|
|
// Track which events we've seen
|
|
let mut found_mcp_list_tools = false;
|
|
let mut found_mcp_list_tools_in_progress = false;
|
|
let mut found_mcp_list_tools_completed = false;
|
|
let mut found_response_created = false;
|
|
let mut found_mcp_call_added = false;
|
|
let mut found_mcp_call_in_progress = false;
|
|
let mut found_mcp_call_arguments = false;
|
|
let mut found_mcp_call_arguments_done = false;
|
|
let mut found_mcp_call_done = false;
|
|
let mut found_response_completed = false;
|
|
|
|
for (event_name, data) in &events {
|
|
let event_type = data.get("type").and_then(|v| v.as_str()).unwrap_or("");
|
|
|
|
match event_type {
|
|
"response.output_item.added" => {
|
|
// Check if it's an mcp_list_tools item
|
|
if let Some(item) = data.get("item") {
|
|
if item.get("type").and_then(|v| v.as_str()) == Some("mcp_list_tools") {
|
|
found_mcp_list_tools = true;
|
|
println!("✓ Found mcp_list_tools added event");
|
|
|
|
// Verify tools array is present (should be empty in added event)
|
|
assert!(
|
|
item.get("tools").is_some(),
|
|
"mcp_list_tools should have tools array"
|
|
);
|
|
} else if item.get("type").and_then(|v| v.as_str()) == Some("mcp_call") {
|
|
found_mcp_call_added = true;
|
|
println!("✓ Found mcp_call added event");
|
|
|
|
// Verify mcp_call has required fields
|
|
assert!(item.get("name").is_some(), "mcp_call should have name");
|
|
assert_eq!(
|
|
item.get("server_label").and_then(|v| v.as_str()),
|
|
Some("mock"),
|
|
"mcp_call should have server_label"
|
|
);
|
|
}
|
|
}
|
|
}
|
|
"response.mcp_list_tools.in_progress" => {
|
|
found_mcp_list_tools_in_progress = true;
|
|
println!("✓ Found mcp_list_tools.in_progress event");
|
|
|
|
// Verify it has output_index and item_id
|
|
assert!(
|
|
data.get("output_index").is_some(),
|
|
"mcp_list_tools.in_progress should have output_index"
|
|
);
|
|
assert!(
|
|
data.get("item_id").is_some(),
|
|
"mcp_list_tools.in_progress should have item_id"
|
|
);
|
|
}
|
|
"response.mcp_list_tools.completed" => {
|
|
found_mcp_list_tools_completed = true;
|
|
println!("✓ Found mcp_list_tools.completed event");
|
|
|
|
// Verify it has output_index and item_id
|
|
assert!(
|
|
data.get("output_index").is_some(),
|
|
"mcp_list_tools.completed should have output_index"
|
|
);
|
|
assert!(
|
|
data.get("item_id").is_some(),
|
|
"mcp_list_tools.completed should have item_id"
|
|
);
|
|
}
|
|
"response.mcp_call.in_progress" => {
|
|
found_mcp_call_in_progress = true;
|
|
println!("✓ Found mcp_call.in_progress event");
|
|
|
|
// Verify it has output_index and item_id
|
|
assert!(
|
|
data.get("output_index").is_some(),
|
|
"mcp_call.in_progress should have output_index"
|
|
);
|
|
assert!(
|
|
data.get("item_id").is_some(),
|
|
"mcp_call.in_progress should have item_id"
|
|
);
|
|
}
|
|
"response.mcp_call_arguments.delta" => {
|
|
found_mcp_call_arguments = true;
|
|
println!("✓ Found mcp_call_arguments.delta event");
|
|
|
|
// Delta should include arguments payload
|
|
assert!(
|
|
data.get("delta").is_some(),
|
|
"mcp_call_arguments.delta should include delta text"
|
|
);
|
|
}
|
|
"response.mcp_call_arguments.done" => {
|
|
found_mcp_call_arguments_done = true;
|
|
println!("✓ Found mcp_call_arguments.done event");
|
|
|
|
assert!(
|
|
data.get("arguments").is_some(),
|
|
"mcp_call_arguments.done should include full arguments"
|
|
);
|
|
}
|
|
"response.output_item.done" => {
|
|
if let Some(item) = data.get("item") {
|
|
if item.get("type").and_then(|v| v.as_str()) == Some("mcp_call") {
|
|
found_mcp_call_done = true;
|
|
println!("✓ Found mcp_call done event");
|
|
|
|
// Verify mcp_call.done has output
|
|
assert!(
|
|
item.get("output").is_some(),
|
|
"mcp_call done should have output"
|
|
);
|
|
}
|
|
}
|
|
}
|
|
"response.created" => {
|
|
found_response_created = true;
|
|
println!("✓ Found response.created event");
|
|
|
|
// Verify response has required fields
|
|
assert!(
|
|
data.get("response").is_some(),
|
|
"response.created should have response object"
|
|
);
|
|
}
|
|
"response.completed" => {
|
|
found_response_completed = true;
|
|
println!("✓ Found response.completed event");
|
|
}
|
|
_ => {
|
|
println!(" Other event: {}", event_type);
|
|
}
|
|
}
|
|
|
|
if let Some(name) = event_name {
|
|
println!(" Event name: {}", name);
|
|
}
|
|
}
|
|
|
|
// Verify key events were present
|
|
println!("\n=== Event Summary ===");
|
|
println!("MCP list_tools added: {}", found_mcp_list_tools);
|
|
println!(
|
|
"MCP list_tools in_progress: {}",
|
|
found_mcp_list_tools_in_progress
|
|
);
|
|
println!(
|
|
"MCP list_tools completed: {}",
|
|
found_mcp_list_tools_completed
|
|
);
|
|
println!("Response created: {}", found_response_created);
|
|
println!("MCP call added: {}", found_mcp_call_added);
|
|
println!("MCP call in_progress: {}", found_mcp_call_in_progress);
|
|
println!("MCP call arguments delta: {}", found_mcp_call_arguments);
|
|
println!("MCP call arguments done: {}", found_mcp_call_arguments_done);
|
|
println!("MCP call done: {}", found_mcp_call_done);
|
|
println!("Response completed: {}", found_response_completed);
|
|
|
|
// Assert critical events are present
|
|
assert!(
|
|
found_mcp_list_tools,
|
|
"Should send mcp_list_tools added event at the start"
|
|
);
|
|
assert!(
|
|
found_mcp_list_tools_in_progress,
|
|
"Should send mcp_list_tools.in_progress event"
|
|
);
|
|
assert!(
|
|
found_mcp_list_tools_completed,
|
|
"Should send mcp_list_tools.completed event"
|
|
);
|
|
assert!(found_response_created, "Should send response.created event");
|
|
assert!(found_mcp_call_added, "Should send mcp_call added event");
|
|
assert!(
|
|
found_mcp_call_in_progress,
|
|
"Should send mcp_call.in_progress event"
|
|
);
|
|
assert!(found_mcp_call_done, "Should send mcp_call done event");
|
|
|
|
assert!(
|
|
found_mcp_call_arguments,
|
|
"Should send mcp_call_arguments.delta event"
|
|
);
|
|
assert!(
|
|
found_mcp_call_arguments_done,
|
|
"Should send mcp_call_arguments.done event"
|
|
);
|
|
|
|
// Verify no error events
|
|
let has_error = body_text.contains("event: error");
|
|
assert!(!has_error, "Should not have error events");
|
|
|
|
worker.stop().await;
|
|
mcp.stop().await;
|
|
}
|
|
|
|
#[tokio::test]
|
|
async fn test_streaming_multi_turn_with_mcp() {
|
|
// Test streaming with multiple tool call rounds
|
|
let (mut mcp, mut worker, router, _dir) = setup_streaming_mcp_test().await;
|
|
|
|
let req = ResponsesRequest {
|
|
background: false,
|
|
include: None,
|
|
input: ResponseInput::Text("complex query requiring multiple tool calls".to_string()),
|
|
instructions: Some("Be thorough".to_string()),
|
|
max_output_tokens: Some(512),
|
|
max_tool_calls: Some(5), // Allow multiple rounds
|
|
metadata: None,
|
|
model: Some("mock-model".to_string()),
|
|
parallel_tool_calls: true,
|
|
previous_response_id: None,
|
|
reasoning: None,
|
|
service_tier: ServiceTier::Auto,
|
|
store: true,
|
|
stream: true,
|
|
temperature: Some(0.8),
|
|
tool_choice: ToolChoice::Value(ToolChoiceValue::Auto),
|
|
tools: vec![ResponseTool {
|
|
r#type: ResponseToolType::Mcp,
|
|
server_url: Some(mcp.url()),
|
|
server_label: Some("mock".to_string()),
|
|
..Default::default()
|
|
}],
|
|
top_logprobs: 0,
|
|
top_p: Some(1.0),
|
|
truncation: Truncation::Disabled,
|
|
user: None,
|
|
request_id: "resp_streaming_multiturn_test".to_string(),
|
|
priority: 0,
|
|
frequency_penalty: 0.0,
|
|
presence_penalty: 0.0,
|
|
stop: None,
|
|
top_k: 50,
|
|
min_p: 0.0,
|
|
repetition_penalty: 1.0,
|
|
};
|
|
|
|
let response = router.route_responses(None, &req, None).await;
|
|
assert_eq!(response.status(), axum::http::StatusCode::OK);
|
|
|
|
use axum::body::to_bytes;
|
|
let body_bytes = to_bytes(response.into_body(), usize::MAX).await.unwrap();
|
|
let body_text = String::from_utf8_lossy(&body_bytes);
|
|
|
|
println!("Multi-turn streaming response:\n{}", body_text);
|
|
|
|
// Verify streaming completed successfully
|
|
assert!(body_text.contains("data: [DONE]"));
|
|
assert!(!body_text.contains("event: error"));
|
|
|
|
// Count events
|
|
let event_count = body_text
|
|
.split("\n\n")
|
|
.filter(|s| !s.trim().is_empty())
|
|
.count();
|
|
println!("Total events in multi-turn stream: {}", event_count);
|
|
|
|
assert!(event_count > 0, "Should have received streaming events");
|
|
|
|
worker.stop().await;
|
|
mcp.stop().await;
|
|
}
|