1 files changed, 13 insertions, 0 deletions
diff --git a/tests/ui/lint/use_suggestion_json.rs b/tests/ui/lint/use_suggestion_json.rs
new file mode 100644
index 00000000000..7d641e08bf0
--- /dev/null
+++ b/tests/ui/lint/use_suggestion_json.rs
@@ -0,0 +1,13 @@
+// ignore-windows
+// ignore-sgx std::os::fortanix_sgx::usercalls::alloc::Iter changes compiler suggestions
+// compile-flags: --error-format pretty-json --json=diagnostic-rendered-ansi
+
+// 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.
+
+fn main() {
+    let x: Iter;
+}