1 files changed, 33 insertions, 0 deletions
diff --git a/src/test/ui/lint/unused-borrows.rs b/src/test/ui/lint/unused-borrows.rs
new file mode 100644
index 000000000..4518522ae
--- /dev/null
+++ b/src/test/ui/lint/unused-borrows.rs
@@ -0,0 +1,33 @@
+#![deny(unused_must_use)]
+
+fn foo(_: i32) -> bool { todo!() }
+
+fn bar() -> &'static i32 {
+    &42;
+    //~^ unused
+
+    &mut foo(42);
+    //~^ unused
+
+    &&42;
+    //~^ unused
+
+    &&mut 42;
+    //~^ unused
+
+    &mut &42;
+    //~^ unused
+
+    let _result = foo(4)
+        && foo(2); // Misplaced semi-colon (perhaps due to reordering of lines)
+    && foo(42);
+    //~^ unused
+
+    let _ = &42; // ok
+
+    &42 // ok
+}
+
+fn main() {
+    let _ = bar();
+}