fix(test): add process sigint handler for --watch (#18678)

Fixes #18676.

1 files changed, 29 insertions, 0 deletions

diff --git a/cli/tests/integration/watcher_tests.rs b/cli/tests/integration/watcher_tests.rs
index 58b703701..407a63f6c 100644
--- a/cli/tests/integration/watcher_tests.rs
+++ b/cli/tests/integration/watcher_tests.rs
@@ -1122,6 +1122,35 @@ fn test_watch_unload_handler_error_on_drop() {
   check_alive_then_kill(child);
 }
 
+#[cfg(unix)]
+#[test]
+fn test_watch_sigint() {
+  use nix::sys::signal;
+  use nix::sys::signal::Signal;
+  use nix::unistd::Pid;
+
+  let t = TempDir::new();
+  let file_to_watch = t.path().join("file_to_watch.js");
+  write(&file_to_watch, r#"Deno.test("foo", () => {});"#).unwrap();
+  let mut child = util::deno_cmd()
+    .current_dir(util::testdata_path())
+    .arg("test")
+    .arg("--watch")
+    .arg(&file_to_watch)
+    .env("NO_COLOR", "1")
+    .stdout(std::process::Stdio::piped())
+    .stderr(std::process::Stdio::piped())
+    .spawn()
+    .unwrap();
+  let (mut stdout_lines, mut stderr_lines) = child_lines(&mut child);
+  wait_contains("Test started", &mut stderr_lines);
+  wait_contains("ok | 1 passed | 0 failed", &mut stdout_lines);
+  wait_contains("Test finished", &mut stderr_lines);
+  signal::kill(Pid::from_raw(child.id() as i32), Signal::SIGINT).unwrap();
+  let exit_status = child.wait().unwrap();
+  assert_eq!(exit_status.code(), Some(130));
+}
+
 // Regression test for https://github.com/denoland/deno/issues/15465.
 #[test]
 fn run_watch_reload_once() {