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-rw-r--r--src/test/ui/panic-while-printing.rs26
1 files changed, 26 insertions, 0 deletions
diff --git a/src/test/ui/panic-while-printing.rs b/src/test/ui/panic-while-printing.rs
new file mode 100644
index 000000000..098f54ac2
--- /dev/null
+++ b/src/test/ui/panic-while-printing.rs
@@ -0,0 +1,26 @@
+// run-pass
+// needs-unwind
+// ignore-emscripten no subprocess support
+
+#![feature(internal_output_capture)]
+
+use std::fmt;
+use std::fmt::{Display, Formatter};
+use std::io::set_output_capture;
+use std::sync::{Arc, Mutex};
+
+pub struct A;
+
+impl Display for A {
+ fn fmt(&self, _f: &mut Formatter<'_>) -> fmt::Result {
+ panic!();
+ }
+}
+
+fn main() {
+ set_output_capture(Some(Arc::new(Mutex::new(Vec::new()))));
+ assert!(std::panic::catch_unwind(|| {
+ eprintln!("{}", A);
+ })
+ .is_err());
+}