1 files changed, 18 insertions, 0 deletions
diff --git a/tests/ui/macros/format-unused-lables.rs b/tests/ui/macros/format-unused-lables.rs
new file mode 100644
index 00000000000..56382b1011c
--- /dev/null
+++ b/tests/ui/macros/format-unused-lables.rs
@@ -0,0 +1,18 @@
+fn main() {
+    println!("Test", 123, 456, 789);
+    //~^ ERROR multiple unused formatting arguments
+
+    println!("Test2",
+        123,  //~ ERROR multiple unused formatting arguments
+        456,
+        789
+    );
+
+    println!("Some stuff", UNUSED="args"); //~ ERROR named argument never used
+
+    println!("Some more $STUFF",
+        "woo!",  //~ ERROR multiple unused formatting arguments
+            STUFF=
+       "things"
+             , UNUSED="args");
+}