fix: re-enable test_raw_tty (denoland#8509)

cli/tests/integration_tests.rs

@@ -171,15 +171,13 @@ fn no_color() {
   assert_eq!("noColor false", util::strip_ansi_codes(stdout_str));
 }
 
-// TODO re-enable. This hangs on macOS
-// https://github.com/denoland/deno/issues/4262
 #[cfg(unix)]
 #[test]
-#[ignore]
 pub fn test_raw_tty() {
   use std::io::{Read, Write};
   use util::pty::fork::*;
-
+  let deno_exe = util::deno_exe_path();
+  let deno_dir = TempDir::new().expect("tempdir fail");
   let fork = Fork::from_ptmx().unwrap();
 
   if let Ok(mut master) = fork.is_parent() {
@@ -206,14 +204,16 @@ pub fn test_raw_tty() {
     t.local_flags.remove(termios::LocalFlags::ECHO);
     termios::tcsetattr(stdin_fd, termios::SetArg::TCSANOW, &t).unwrap();
 
-    let deno_dir = TempDir::new().expect("tempdir fail");
-    let mut child = Command::new(util::deno_exe_path())
+    let mut child = Command::new(deno_exe)
       .env("DENO_DIR", deno_dir.path())
       .current_dir(util::root_path())
       .arg("run")
+      .arg("--unstable")
       .arg("cli/tests/raw_mode.ts")
       .stdin(Stdio::inherit())
       .stdout(Stdio::inherit())
+      // Warning: errors may be swallowed. Try to comment stderr null if
+      // experiencing problems.
       .stderr(Stdio::null())
       .spawn()
       .expect("Failed to spawn script");