1 files changed, 61 insertions, 0 deletions
diff --git a/src/test/ui/lint/unused_parens_remove_json_suggestion.fixed b/src/test/ui/lint/unused_parens_remove_json_suggestion.fixed
new file mode 100644
index 000000000..8a57cd573
--- /dev/null
+++ b/src/test/ui/lint/unused_parens_remove_json_suggestion.fixed
@@ -0,0 +1,61 @@
+// compile-flags: --error-format json
+// run-rustfix
+
+// The output for humans should just highlight the whole span without showing
+// the suggested replacement, but we also want to test that suggested
+// replacement only removes one set of parentheses, rather than naïvely
+// stripping away any starting or ending parenthesis characters—hence this
+// test of the JSON error format.
+
+#![deny(unused_parens)]
+#![allow(unreachable_code)]
+
+fn main() {
+
+    let _b = false;
+
+    if _b { //~ ERROR unnecessary parentheses
+        println!("hello");
+    }
+
+    f();
+
+}
+
+fn f() -> bool {
+    let c = false;
+
+    if c { //~ ERROR unnecessary parentheses
+        println!("next");
+    }
+
+    if c { //~ ERROR unnecessary parentheses
+        println!("prev");
+    }
+
+    while false && true {
+        if c { //~ ERROR unnecessary parentheses
+            println!("norm");
+        }
+
+    }
+
+    while true && false { //~ ERROR unnecessary parentheses
+        for _ in 0 .. 3 { //~ ERROR unnecessary parentheses
+            println!("e~")
+        }
+    }
+
+    for _ in 0 .. 3 { //~ ERROR unnecessary parentheses
+        while true && false { //~ ERROR unnecessary parentheses
+            println!("e~")
+        }
+    }
+
+
+    loop {
+        if (break { return true }) {
+        }
+    }
+    false
+}