2 files changed, 28 insertions, 0 deletions
diff --git a/src/tools/clippy/tests/ui-toml/large_futures/large_futures.fixed b/src/tools/clippy/tests/ui-toml/large_futures/large_futures.fixed
new file mode 100644
index 000000000..7dea9fb95
--- /dev/null
+++ b/src/tools/clippy/tests/ui-toml/large_futures/large_futures.fixed
@@ -0,0 +1,27 @@
+#![warn(clippy::large_futures)]
+
+fn main() {}
+
+pub async fn should_warn() {
+    let x = [0u8; 1024];
+    async {}.await;
+    dbg!(x);
+}
+
+pub async fn should_not_warn() {
+    let x = [0u8; 1020];
+    async {}.await;
+    dbg!(x);
+}
+
+pub async fn bar() {
+    Box::pin(should_warn()).await;
+
+    async {
+        let x = [0u8; 1024];
+        dbg!(x);
+    }
+    .await;
+
+    should_not_warn().await;
+}
diff --git a/src/tools/clippy/tests/ui-toml/large_futures/large_futures.stderr b/src/tools/clippy/tests/ui-toml/large_futures/large_futures.stderr
index b92734de2..7a02fcdbd 100644
--- a/src/tools/clippy/tests/ui-toml/large_futures/large_futures.stderr
+++ b/src/tools/clippy/tests/ui-toml/large_futures/large_futures.stderr
@@ -5,6 +5,7 @@ LL |     should_warn().await;
    |     ^^^^^^^^^^^^^ help: consider `Box::pin` on it: `Box::pin(should_warn())`
    |
    = note: `-D clippy::large-futures` implied by `-D warnings`
+   = help: to override `-D warnings` add `#[allow(clippy::large_futures)]`
 
 error: aborting due to previous error