1 files changed, 20 insertions, 0 deletions
diff --git a/tests/cfail/unsafe-idle.rs b/tests/cfail/unsafe-idle.rs
new file mode 100644
index 00000000..fab1b0f1
--- /dev/null
+++ b/tests/cfail/unsafe-idle.rs
@@ -0,0 +1,20 @@
+#![no_main]
+#![no_std]
+
+extern crate lm3s6965;
+extern crate panic_halt;
+extern crate rtfm;
+
+use rtfm::app;
+
+#[app(device = lm3s6965)]
+const APP: () = {
+    #[init]
+    fn init(_: init::Context) {}
+
+    #[idle]
+    unsafe fn idle(_: idle::Context) -> ! {
+        //~^ ERROR `idle` must have type signature `fn(idle::Context) -> !`
+        loop {}
+    }
+};