Add regression test for SIGPIPE on macOS

tests/smoke.rs

@@ -248,3 +248,27 @@ fn is_serde() {
     is_serialize::<backtrace::Backtrace>();
     is_deserialize::<backtrace::Backtrace>();
 }
+
+// Copied from https://github.com/rust-lang/rust/blob/2cb0b8582ebbf9784db9cec06fff517badbf4553/src/test/ui/issues/issue-45731.rs
+#[test]
+#[cfg(target_os = "macos")]
+fn simple_test() {
+    use std::{env, panic, fs};
+
+    // Find our dSYM and replace the DWARF binary with an empty file
+    let mut dsym_path = env::current_exe().unwrap();
+    let executable_name = dsym_path.file_name().unwrap().to_str().unwrap().to_string();
+    assert!(dsym_path.pop()); // Pop executable
+    dsym_path.push(format!("{}.dSYM/Contents/Resources/DWARF/{0}", executable_name));
+    {
+        let file = fs::OpenOptions::new().read(false).write(true).truncate(true).create(false)
+            .open(&dsym_path).unwrap();
+    }
+
+    env::set_var("RUST_BACKTRACE", "1");
+
+    // We don't need to die of panic, just trigger a backtrace
+    let _ = panic::catch_unwind(|| {
+        assert!(false);
+    });
+}