1 files changed, 35 insertions, 0 deletions
diff --git a/tests/ui/async-await/async-gen-move-suggestion.rs b/tests/ui/async-await/async-gen-move-suggestion.rs
new file mode 100644
index 00000000000..825fb0fd189
--- /dev/null
+++ b/tests/ui/async-await/async-gen-move-suggestion.rs
@@ -0,0 +1,35 @@
+// This is a regression test for <https://github.com/rust-lang/rust/issues/139839>.
+// It ensures that the "add `move` keyword" suggestion is valid.
+
+//@ run-rustfix
+//@ edition:2024
+
+#![feature(coroutines)]
+#![feature(gen_blocks)]
+#![feature(async_iterator)]
+
+use std::async_iter::AsyncIterator;
+
+#[allow(dead_code)]
+fn moved() -> impl AsyncIterator<Item = u32> {
+    let mut x = "foo".to_string();
+
+    async gen { //~ ERROR
+        x.clear();
+        for x in 3..6 { yield x }
+    }
+}
+
+#[allow(dead_code)]
+fn check_with_whitespace_chars() -> impl AsyncIterator<Item = u32> {
+    let mut x = "foo".to_string();
+
+    async // Just to check that whitespace characters are correctly handled
+    gen { //~^ ERROR
+        x.clear();
+        for x in 3..6 { yield x }
+    }
+}
+
+fn main() {
+}