test: run donut-proxy tests in sequence

src-tauri/Cargo.lock

@@ -1322,6 +1322,7 @@ dependencies = [
  "reqwest",
  "serde",
  "serde_json",
+ "serial_test",
  "sysinfo",
  "tar",
  "tauri",
@@ -4290,6 +4291,15 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "scc"
+version = "2.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "46e6f046b7fef48e2660c57ed794263155d713de679057f2d0c169bfc6e756cc"
+dependencies = [
+ "sdd",
+]
+
 [[package]]
 name = "schannel"
 version = "0.1.28"
@@ -4362,6 +4372,12 @@ version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "94143f37725109f92c262ed2cf5e59bce7498c01bcc1502d7b9afe439a4e9f49"
 
+[[package]]
+name = "sdd"
+version = "3.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "490dcfcbfef26be6800d11870ff2df8774fa6e86d047e3e8c8a76b25655e41ca"
+
 [[package]]
 name = "seahash"
 version = "4.1.0"
@@ -4568,6 +4584,31 @@ dependencies = [
  "syn 2.0.110",
 ]
 
+[[package]]
+name = "serial_test"
+version = "3.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b258109f244e1d6891bf1053a55d63a5cd4f8f4c30cf9a1280989f80e7a1fa9"
+dependencies = [
+ "futures",
+ "log",
+ "once_cell",
+ "parking_lot",
+ "scc",
+ "serial_test_derive",
+]
+
+[[package]]
+name = "serial_test_derive"
+version = "3.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5d69265a08751de7844521fd15003ae0a888e035773ba05695c5c759a6f89eef"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.110",
+]
+
 [[package]]
 name = "serialize-to-javascript"
 version = "0.1.2"

src-tauri/Cargo.toml

@@ -99,6 +99,7 @@ http-body-util = "0.1"
 tower = "0.5"
 tower-http = { version = "0.6", features = ["fs", "trace"] }
 futures-util = "0.3"
+serial_test = "3"
 
 # Integration test configuration
 [[test]]

src-tauri/tests/donut_proxy_integration.rs

@@ -1,6 +1,7 @@
 mod common;
 use common::TestUtils;
 use serde_json::Value;
+use serial_test::serial;
 use std::time::Duration;
 use tokio::io::{AsyncReadExt, AsyncWriteExt};
 use tokio::net::TcpStream;
@@ -81,6 +82,7 @@ impl Drop for ProxyTestTracker {
 
 /// Test starting a local proxy without upstream proxy (DIRECT)
 #[tokio::test]
+#[serial]
 async fn test_local_proxy_direct() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
   let binary_path = setup_test().await?;
   let mut tracker = ProxyTestTracker::new(binary_path.clone());
@@ -148,6 +150,7 @@ async fn test_local_proxy_direct() -> Result<(), Box<dyn std::error::Error + Sen
 
 /// Test chaining local proxies (local proxy -> local proxy -> internet)
 #[tokio::test]
+#[serial]
 async fn test_chained_local_proxies() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
   let binary_path = setup_test().await?;
   let mut tracker = ProxyTestTracker::new(binary_path.clone());
@@ -238,6 +241,7 @@ async fn test_chained_local_proxies() -> Result<(), Box<dyn std::error::Error +
 
 /// Test starting a local proxy with HTTP upstream proxy
 #[tokio::test]
+#[serial]
 async fn test_local_proxy_with_http_upstream(
 ) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
   let binary_path = setup_test().await?;
@@ -328,6 +332,7 @@ async fn test_local_proxy_with_http_upstream(
 
 /// Test multiple proxies running simultaneously
 #[tokio::test]
+#[serial]
 async fn test_multiple_proxies_simultaneously(
 ) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
   let binary_path = setup_test().await?;
@@ -376,6 +381,7 @@ async fn test_multiple_proxies_simultaneously(
 
 /// Test proxy listing
 #[tokio::test]
+#[serial]
 async fn test_proxy_list() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
   let binary_path = setup_test().await?;
   let mut tracker = ProxyTestTracker::new(binary_path.clone());
@@ -411,6 +417,7 @@ async fn test_proxy_list() -> Result<(), Box<dyn std::error::Error + Send + Sync
 
 /// Test proxy stop
 #[tokio::test]
+#[serial]
 async fn test_proxy_stop() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
   let binary_path = setup_test().await?;
   let _tracker = ProxyTestTracker::new(binary_path.clone());