1 files changed, 9 insertions, 0 deletions
diff --git a/tests/ui/destructuring-assignment/tuple_destructure_fail.rs b/tests/ui/destructuring-assignment/tuple_destructure_fail.rs
new file mode 100644
index 00000000000..4e3172d1973
--- /dev/null
+++ b/tests/ui/destructuring-assignment/tuple_destructure_fail.rs
@@ -0,0 +1,9 @@
+const C: i32 = 1;
+
+fn main() {
+    let (mut a, mut b);
+    (a, .., b, ..) = (0, 1); //~ ERROR `..` can only be used once per tuple pattern
+    (a, a, b) = (1, 2); //~ ERROR mismatched types
+    (C, ..) = (0,1); //~ ERROR invalid left-hand side of assignment
+    (_,) = (1, 2); //~ ERROR mismatched types
+}