1 files changed, 23 insertions, 0 deletions
diff --git a/src/test/parse-fail/require-parens-for-chained-comparison.rs b/src/test/parse-fail/require-parens-for-chained-comparison.rs
new file mode 100644
index 00000000000..f2705f58331
--- /dev/null
+++ b/src/test/parse-fail/require-parens-for-chained-comparison.rs
@@ -0,0 +1,23 @@
+// Copyright 2015 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+fn f<T>() {}
+
+fn main() {
+    false == false == false;
+    //~^ ERROR: chained comparison operators require parentheses
+
+    false == 0 < 2;
+    //~^ ERROR: chained comparison operators require parentheses
+
+    f<X>();
+    //~^ ERROR: chained comparison operators require parentheses
+    //~^^ HELP: use `::<...>` instead of `<...>`
+}