1 files changed, 17 insertions, 0 deletions
diff --git a/src/test/ui/suggestions/mut-ref-reassignment.rs b/src/test/ui/suggestions/mut-ref-reassignment.rs
new file mode 100644
index 000000000..142832493
--- /dev/null
+++ b/src/test/ui/suggestions/mut-ref-reassignment.rs
@@ -0,0 +1,17 @@
+fn suggestion(opt: &mut Option<String>) {
+    opt = None; //~ ERROR mismatched types
+}
+
+fn no_suggestion(opt: &mut Result<String, ()>) {
+    opt = None //~ ERROR mismatched types
+}
+
+fn suggestion2(opt: &mut Option<String>) {
+    opt = Some(String::new())//~ ERROR mismatched types
+}
+
+fn no_suggestion2(opt: &mut Option<String>) {
+    opt = Some(42)//~ ERROR mismatched types
+}
+
+fn main() {}