Files
sglang/sgl-model-gateway/tests/payload_size_test.rs

299 lines
8.9 KiB
Rust

//! Payload size integration tests
//!
//! Tests for request payload size limits and handling.
mod common;
use axum::{
body::Body,
extract::Request,
http::{header::CONTENT_TYPE, StatusCode},
};
use common::{
mock_worker::{HealthStatus, MockWorkerConfig, WorkerType},
AppTestContext,
};
use serde_json::json;
use smg::config::RouterConfig;
use tower::ServiceExt;
#[cfg(test)]
mod payload_size_tests {
use super::*;
/// Test that small payloads are handled correctly
#[tokio::test]
async fn test_small_payload() {
let config = RouterConfig::builder()
.regular_mode(vec![])
.round_robin_policy()
.host("127.0.0.1")
.port(4200)
.max_payload_size(1024 * 1024) // 1MB limit
.request_timeout_secs(600)
.worker_startup_timeout_secs(5)
.worker_startup_check_interval_secs(1)
.max_concurrent_requests(64)
.queue_timeout_secs(60)
.build_unchecked();
let ctx = AppTestContext::new_with_config(
config,
vec![MockWorkerConfig {
port: 20200,
worker_type: WorkerType::Regular,
health_status: HealthStatus::Healthy,
response_delay_ms: 0,
fail_rate: 0.0,
}],
)
.await;
let app = ctx.create_app().await;
let payload = json!({
"text": "Small payload test",
"stream": false
});
let req = Request::builder()
.method("POST")
.uri("/generate")
.header(CONTENT_TYPE, "application/json")
.body(Body::from(serde_json::to_string(&payload).unwrap()))
.unwrap();
let resp = app.oneshot(req).await.unwrap();
assert_eq!(
resp.status(),
StatusCode::OK,
"Small payload should be accepted"
);
ctx.shutdown().await;
}
/// Test that payloads within limit are accepted
#[tokio::test]
async fn test_payload_within_limit() {
let config = RouterConfig::builder()
.regular_mode(vec![])
.round_robin_policy()
.host("127.0.0.1")
.port(4201)
.max_payload_size(1024 * 1024) // 1MB limit
.request_timeout_secs(600)
.worker_startup_timeout_secs(5)
.worker_startup_check_interval_secs(1)
.max_concurrent_requests(64)
.queue_timeout_secs(60)
.build_unchecked();
let ctx = AppTestContext::new_with_config(
config,
vec![MockWorkerConfig {
port: 20201,
worker_type: WorkerType::Regular,
health_status: HealthStatus::Healthy,
response_delay_ms: 0,
fail_rate: 0.0,
}],
)
.await;
let app = ctx.create_app().await;
// Create a ~100KB payload (well within 1MB limit)
let large_text = "x".repeat(100 * 1024);
let payload = json!({
"text": large_text,
"stream": false
});
let req = Request::builder()
.method("POST")
.uri("/generate")
.header(CONTENT_TYPE, "application/json")
.body(Body::from(serde_json::to_string(&payload).unwrap()))
.unwrap();
let resp = app.oneshot(req).await.unwrap();
assert_eq!(
resp.status(),
StatusCode::OK,
"Payload within limit should be accepted"
);
ctx.shutdown().await;
}
/// Test that payloads exceeding limit are rejected
#[tokio::test]
async fn test_payload_exceeds_limit() {
let config = RouterConfig::builder()
.regular_mode(vec![])
.round_robin_policy()
.host("127.0.0.1")
.port(4202)
.max_payload_size(1024) // Very small 1KB limit
.request_timeout_secs(600)
.worker_startup_timeout_secs(5)
.worker_startup_check_interval_secs(1)
.max_concurrent_requests(64)
.queue_timeout_secs(60)
.build_unchecked();
let ctx = AppTestContext::new_with_config(
config,
vec![MockWorkerConfig {
port: 20202,
worker_type: WorkerType::Regular,
health_status: HealthStatus::Healthy,
response_delay_ms: 0,
fail_rate: 0.0,
}],
)
.await;
let app = ctx.create_app().await;
// Create a payload larger than 1KB limit
let large_text = "x".repeat(2048);
let payload = json!({
"text": large_text,
"stream": false
});
let req = Request::builder()
.method("POST")
.uri("/generate")
.header(CONTENT_TYPE, "application/json")
.body(Body::from(serde_json::to_string(&payload).unwrap()))
.unwrap();
let resp = app.oneshot(req).await.unwrap();
// Should be rejected with 413 Payload Too Large or similar
assert!(
resp.status() == StatusCode::PAYLOAD_TOO_LARGE
|| resp.status() == StatusCode::BAD_REQUEST,
"Payload exceeding limit should be rejected, got {}",
resp.status()
);
ctx.shutdown().await;
}
/// Test edge case: payload exactly at limit
#[tokio::test]
async fn test_payload_at_exact_limit() {
// Use a more reasonable limit for this test
let limit_bytes = 10 * 1024; // 10KB limit
let config = RouterConfig::builder()
.regular_mode(vec![])
.round_robin_policy()
.host("127.0.0.1")
.port(4203)
.max_payload_size(limit_bytes)
.request_timeout_secs(600)
.worker_startup_timeout_secs(5)
.worker_startup_check_interval_secs(1)
.max_concurrent_requests(64)
.queue_timeout_secs(60)
.build_unchecked();
let ctx = AppTestContext::new_with_config(
config,
vec![MockWorkerConfig {
port: 20203,
worker_type: WorkerType::Regular,
health_status: HealthStatus::Healthy,
response_delay_ms: 0,
fail_rate: 0.0,
}],
)
.await;
let app = ctx.create_app().await;
// Create a payload slightly under the limit (accounting for JSON overhead)
let text_size = limit_bytes - 100; // Leave room for JSON structure
let text = "x".repeat(text_size);
let payload = json!({
"text": text,
"stream": false
});
let req = Request::builder()
.method("POST")
.uri("/generate")
.header(CONTENT_TYPE, "application/json")
.body(Body::from(serde_json::to_string(&payload).unwrap()))
.unwrap();
let resp = app.oneshot(req).await.unwrap();
// Payload at/near limit should be accepted
assert!(
resp.status() == StatusCode::OK || resp.status() == StatusCode::PAYLOAD_TOO_LARGE,
"Payload at limit boundary, got status {}",
resp.status()
);
ctx.shutdown().await;
}
/// Test default payload size limit (256MB)
#[tokio::test]
async fn test_default_payload_limit() {
let config = RouterConfig::builder()
.regular_mode(vec![])
.round_robin_policy()
.host("127.0.0.1")
.port(4204)
.max_payload_size(256 * 1024 * 1024) // Default 256MB
.request_timeout_secs(600)
.worker_startup_timeout_secs(5)
.worker_startup_check_interval_secs(1)
.max_concurrent_requests(64)
.queue_timeout_secs(60)
.build_unchecked();
let ctx = AppTestContext::new_with_config(
config,
vec![MockWorkerConfig {
port: 20204,
worker_type: WorkerType::Regular,
health_status: HealthStatus::Healthy,
response_delay_ms: 0,
fail_rate: 0.0,
}],
)
.await;
let app = ctx.create_app().await;
// Create a 1MB payload (well within 256MB)
let large_text = "x".repeat(1024 * 1024);
let payload = json!({
"text": large_text,
"stream": false
});
let req = Request::builder()
.method("POST")
.uri("/generate")
.header(CONTENT_TYPE, "application/json")
.body(Body::from(serde_json::to_string(&payload).unwrap()))
.unwrap();
let resp = app.oneshot(req).await.unwrap();
assert_eq!(
resp.status(),
StatusCode::OK,
"1MB payload should be accepted with 256MB limit"
);
ctx.shutdown().await;
}
}