fix: enable clippy on tests (#870)

https://github.com/openai/codex/pull/855 added the clippy warning to
disallow `unwrap()`, but apparently we were not verifying that tests
were "clippy clean" in CI, so I ended up with a lot of local errors in
VS Code.

This turns on the check in CI and fixes the offenders.

codex-rs/core/src/is_safe_command.rs

@@ -194,6 +194,7 @@ fn is_valid_sed_n_arg(arg: Option<&str>) -> bool {
 }
 #[cfg(test)]
 mod tests {
+    #![allow(clippy::unwrap_used)]
     use super::*;
 
     fn vec_str(args: &[&str]) -> Vec<String> {

codex-rs/core/src/linux.rs

@@ -179,7 +179,9 @@ fn install_network_seccomp_filter_on_current_thread() -> std::result::Result<(),
 }
 
 #[cfg(test)]
-mod tests_linux {
+mod tests {
+    #![allow(clippy::unwrap_used)]
+
     use super::*;
     use crate::exec::ExecParams;
     use crate::exec::SandboxType;

codex-rs/core/src/models.rs

@@ -163,6 +163,7 @@ impl std::ops::Deref for FunctionCallOutputPayload {
 
 #[cfg(test)]
 mod tests {
+    #![allow(clippy::unwrap_used)]
     use super::*;
 
     #[test]

codex-rs/core/src/safety.rs

@@ -189,6 +189,7 @@ fn is_write_patch_constrained_to_writable_paths(
 
 #[cfg(test)]
 mod tests {
+    #![allow(clippy::unwrap_used)]
     use super::*;
 
     #[test]

codex-rs/core/src/user_notification.rs

@@ -20,6 +20,7 @@ pub(crate) enum UserNotification {
 
 #[cfg(test)]
 mod tests {
+    #![allow(clippy::unwrap_used)]
     use super::*;
 
     #[test]

codex-rs/core/tests/live_agent.rs

@@ -19,6 +19,7 @@ use std::time::Duration;
 
 use codex_core::Codex;
 use codex_core::config::Config;
+use codex_core::error::CodexErr;
 use codex_core::protocol::EventMsg;
 use codex_core::protocol::InputItem;
 use codex_core::protocol::Op;
@@ -32,7 +33,7 @@ fn api_key_available() -> bool {
 /// Helper that spawns a fresh Agent and sends the mandatory *ConfigureSession*
 /// submission.  The caller receives the constructed [`Agent`] plus the unique
 /// submission id used for the initialization message.
-async fn spawn_codex() -> Codex {
+async fn spawn_codex() -> Result<Codex, CodexErr> {
     assert!(
         api_key_available(),
         "OPENAI_API_KEY must be set for live tests"
@@ -53,11 +54,9 @@ async fn spawn_codex() -> Codex {
     }
 
     let config = Config::load_default_config_for_test();
-    let (agent, _init_id) = Codex::spawn(config, std::sync::Arc::new(Notify::new()))
-        .await
-        .unwrap();
+    let (agent, _init_id) = Codex::spawn(config, std::sync::Arc::new(Notify::new())).await?;
 
-    agent
+    Ok(agent)
 }
 
 /// Verifies that the agent streams incremental *AgentMessage* events **before**
@@ -66,12 +65,13 @@ async fn spawn_codex() -> Codex {
 #[ignore]
 #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
 async fn live_streaming_and_prev_id_reset() {
+    #![allow(clippy::unwrap_used)]
     if !api_key_available() {
         eprintln!("skipping live_streaming_and_prev_id_reset – OPENAI_API_KEY not set");
         return;
     }
 
-    let codex = spawn_codex().await;
+    let codex = spawn_codex().await.unwrap();
 
     // ---------- Task 1 ----------
     codex
@@ -140,12 +140,13 @@ async fn live_streaming_and_prev_id_reset() {
 #[ignore]
 #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
 async fn live_shell_function_call() {
+    #![allow(clippy::unwrap_used)]
     if !api_key_available() {
         eprintln!("skipping live_shell_function_call – OPENAI_API_KEY not set");
         return;
     }
 
-    let codex = spawn_codex().await;
+    let codex = spawn_codex().await.unwrap();
 
     const MARKER: &str = "codex_live_echo_ok";
 

codex-rs/core/tests/live_cli.rs

@@ -15,6 +15,7 @@ fn require_api_key() -> String {
 
 /// Helper that spawns the binary inside a TempDir with minimal flags. Returns (Assert, TempDir).
 fn run_live(prompt: &str) -> (assert_cmd::assert::Assert, TempDir) {
+    #![allow(clippy::unwrap_used)]
     use std::io::Read;
     use std::io::Write;
     use std::thread;
@@ -110,6 +111,7 @@ fn run_live(prompt: &str) -> (assert_cmd::assert::Assert, TempDir) {
 #[ignore]
 #[test]
 fn live_create_file_hello_txt() {
+    #![allow(clippy::unwrap_used)]
     if std::env::var("OPENAI_API_KEY").is_err() {
         eprintln!("skipping live_create_file_hello_txt – OPENAI_API_KEY not set");
         return;

codex-rs/core/tests/previous_response_id.rs

@@ -48,6 +48,8 @@ data: {{\"type\":\"response.completed\",\"response\":{{\"id\":\"{}\",\"output\":
 
 #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
 async fn keeps_previous_response_id_between_tasks() {
+    #![allow(clippy::unwrap_used)]
+
     // Mock server
     let server = MockServer::start().await;
 

codex-rs/core/tests/stream_no_completed.rs

@@ -32,6 +32,8 @@ data: {{\"type\":\"response.completed\",\"response\":{{\"id\":\"{}\",\"output\":
 
 #[tokio::test(flavor = "multi_thread", worker_threads = 2)]
 async fn retries_on_early_close() {
+    #![allow(clippy::unwrap_used)]
+
     let server = MockServer::start().await;
 
     struct SeqResponder;