1 files changed, 11 insertions, 0 deletions

diff --git a/embassy-sync/tests/ui/sync_impl/lazy_lock_function.rs b/embassy-sync/tests/ui/sync_impl/lazy_lock_function.rs
new file mode 100644
index 000000000..35f5587c0
--- /dev/null
+++ b/embassy-sync/tests/ui/sync_impl/lazy_lock_function.rs
@@ -0,0 +1,11 @@
+use embassy_sync::lazy_lock::LazyLock;
+
+fn main() {
+    let x = 128u8;
+    let x_ptr: *const u8 = core::ptr::addr_of!(x);
+    let closure_capturing_non_sync_variable = || unsafe { core::ptr::read(x_ptr) };
+
+    check_sync(LazyLock::new(closure_capturing_non_sync_variable));
+}
+
+fn check_sync<T: Sync>(_lazy_lock: T) {}