Add test for Debug formatting of char

1 files changed, 8 insertions, 0 deletions

diff --git a/src/libcore/tests/char.rs b/src/libcore/tests/char.rs
index ab90763abf8..76f28d493ab 100644
--- a/src/libcore/tests/char.rs
+++ b/src/libcore/tests/char.rs
@@ -187,6 +187,14 @@ fn test_escape_debug() {
 }
 
 #[test]
+fn test_debug() {
+    assert_eq!(format!("{:?}", 'a'), "'a'");                // ASCII character
+    assert_eq!(format!("{:?}", 'é'), "'é'");                // printable character
+    assert_eq!(format!("{:?}", '\u{301}'), "'\\u{301}'");   // combining character
+    assert_eq!(format!("{:?}", '\u{e000}'), "'\\u{e000}'"); // private use 1
+}
+
+#[test]
 fn test_escape_default() {
     fn string(c: char) -> String {
         let iter: String = c.escape_default().collect();